Relevant bibliographies by topics / Potato yield

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Potato yield'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 June 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Potato yield.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Potato yield"

1

Zymaroieva, Anastasiia, Tetiana Fedoniuk, Svitlana Matkovska, Olena Andreieva, and Victor Pazych. "Agroecological Determinants of Potato Spatiotemporal Yield Variation at the Landscape Level in the Central and Northern Ukraine." Grassroots Journal of Natural Resources 4, no. 2 (2021): 34–47. http://dx.doi.org/10.33002/nr2581.6853.040203.

Full text
Abstract:
Global food security largely depends on the crop yield increase, so the study of the yield-limiting factors of potato (the second bread) is a pressing issue today. This study determines the contribution of the agroecological factors, namely, bioclimatic variables, soil indicators, and factors of landscape diversity, to the variation in potato yields. Conducted in Polissya and Forest-steppe zones of Ukraine during 1991–2017, this study has not only addressed the relationship between ecological determinants and potato yields, but also considered crop yields as a dynamic system. The dynamics of potato yields from the mid-1990s to the present is described by a log-logistic model. There are statistically significant regression dependencies between potato yield parameters and agroecological factors. Potato yield is dependent on the diversity of landscape cover. The relationship between yield parameters and landscape-ecological diversity is non-linear, which determines the presence of optimal landscape structure for the highest potato yields. Among climatic factors, the continental climate is of the greatest importance for potato yield. The high sensitivity of potato yield parameters to soil indices was found, and mostly the soil texture components (silt content), which largely determines the potato yield spatial variation.
APA, Harvard, Vancouver, ISO, and other styles
2

Anastasiia, Zymaroieva, Fedoniuk Tetiana, Matkovska Svitlana, Andreieva Olena, and Pazych Victor. "Agroecological Determinants of Potato Spatiotemporal Yield Variation at the Landscape Level in the Central and Northern Ukraine." Grassroots Journal of Natural Resources 4, no. 2 (2021): 34–47. https://doi.org/10.33002/nr2581.6853.040203.

Full text
Abstract:
Global food security largely depends on the crop yield increase, so the study of the yield-limiting factors of potato (the second bread) is a pressing issue today. This study determines the contribution of the agroecological factors, namely, bioclimatic variables, soil indicators, and factors of landscape diversity, to the variation in potato yields. Conducted in Polissya and Forest-steppe zones of Ukraine during 1991–2017, this study has not only addressed the relationship between ecological determinants and potato yields, but also considered crop yields as a dynamic system. The dynamics of potato yields from the mid-1990s to the present is described by a log-logistic model. There are statistically significant regression dependencies between potato yield  parameters and agroecological factors. Potato yield is dependent on the diversity of landscape cover. The relationship between yield parameters and landscape-ecological diversity is non-linear, which determines the presence of optimal landscape structure for the highest potato yields. Among climatic factors, the continental climate is of the greatest importance for potato yield. The high sensitivity of potato yield parameters to soil indices was found, and mostly the soil texture components (silt content), which largely determines the potato yield spatial variation.
APA, Harvard, Vancouver, ISO, and other styles
3

Li, Qiang, and Suiqi Zhang. "Impacts of Recent Climate Change on Potato Yields at a Provincial Scale in Northwest China." Agronomy 10, no. 3 (2020): 426. http://dx.doi.org/10.3390/agronomy10030426.

Full text
Abstract:
Understanding the effects of climate change on potato yield is vital for food security in northwest China. Based on the long-term data of yields and meteorology, this study analysed the impacts of recent climate change on potato yields at a provincial scale in northwest China. The first difference method was used to disentangle the contributions of climate change from the changes in potato yield in two consecutive years. The moving average method was used to decouple the climate-induced yield of potato. The results showed that the yield and planting area of potato from the period 1982 to 2015 increased markedly, with inter-annual fluctuations. The temperature increased significantly during the potato growing period in northwest China, while other climatic factors did not change significantly. Specifically, the changing trends in climatic factors varied among different provinces. The key meteorological factors limiting potato yield were temperature, precipitation and diurnal temperature range, varying in the different provinces. Potato yields in Gansu, Shaanxi, Ningxia and Xinjiang decreased by 127, 289, 199 and 339 kg ha−1, respectively, for every 1 °C increase in daily maximum temperature. The potato yield in Xinjiang decreased by 583 kg ha−1 for every 1 °C increase in daily minimum temperature. For every 100 mm increase in precipitation, the potato yields in Gansu, Qinghai and Ningxia increased by 250, 375 and 182 kg ha−1, respectively. Combining the first difference method and the moving average method, precipitation was the dominant climatic factor affecting potato yield in rain-fed areas (Gansu, Qinghai and Ningxia). For areas with irrigation (Xinjiang) or relatively high rainfall (Shaanxi), maximum temperature was the deciding climatic factor affecting potato yield. Appropriate adaptation to climate change in the different regions will help to ensure potato production in northwest China.
APA, Harvard, Vancouver, ISO, and other styles
4

Пищимко, Олеся Игоревна, and Людмила Вячеславовна Гарафутдинова. "POTATO YIELD FORECASTING." Вестник Бурятской государственной сельскохозяйственной академии имени В. Р. Филиппова, no. 4(69) (December 28, 2022): 15–22. http://dx.doi.org/10.34655/bgsha.2022.69.4.002.

Full text
Abstract:
В статье проведен анализ динамики урожайности картофеля по сельхозпредприятиям и всем категориям хозяйств на территории Иркутской области. Проведен анализ и оценка основных факторов, влияющих на точность прогнозирования урожайности: осадки, дефицит насыщения воздуха, температура, комплексные показатели. Для прогнозирования урожайности были использованы данные за период с 1981 по 2020 г. Установлено, что наибольшее влияние на формирование урожайности картофеля на рассматриваемой территории оказывают условия тепло- и влагообеспеченности. Исследования фаз развития картофеля показывают, что критическим по требовательности растений к метеорологическим условиям является период клубнеобразования. Разработаны физико-статистические модели, вошедшие в автоматизированную технологию прогнозирования урожайности картофеля по сельхозпредприятиям и по всем категориям хозяйств Иркутской области, основанные на использовании сложившихся агрометеорологических условий и фактическом состоянии растений. При помощи критерия Стьюдента проведена оценка значимости коэффициентов корреляции. Базовым показателем является рабочий процесс, подчеркивающий правильность и модульность. Это позволяет заблаговременно прогнозировать урожайность и валовой сбор картофеля. На основе независимой выборки проведена оценка успешности моделей, средняя величина относительной ошибки составляет по всем категориям хозяйств 4,1%, по сельскохозяйственным предприятиям - 8,5%. Анализ результатов на основе авторских испытаний показал достаточно высокую оправдываемость, которая составляет 95,9 и 91,5% соответственно. Разработанная автоматизированная технология передана на оперативные испытания в отдел агрометпрогнозов и агрометеорологии ФГБУ «Иркутское УГМС». The article provides an analysis of the dynamics of potato yields by agricultural enterprises and all categories of farms within the Irkutsk region. The analysis and evaluation of the main factors affecting the accuracy of the yield forecasting such as precipitation, lack of air saturation, temperature and complex indicators were carried. To predict yields data from 1981 to 2020 were used. It was found out that heat and moisture supply has the greatest influence on the formation of potato yields in the territory under the research. Studies of the potato development showed that the stage of tuber formation is the crucial one dependent on meteorological conditions. Physical and statistical models have been developed that are included in the computer-aided technology for forecasting potato yields for agricultural enterprises and for all categories of farms in the Irkutsk region. This technology is based on the use of the prevailing agrometeorological conditions and the actual state of plants. Using the Student's t-test, the significance of the correlation coefficients was assessed. The basic indicator is a workflow that emphasizes accuracy and modularity. This allows forecasting the yield and gross yield of potatoes in advance. Based on independent samples the success of the models was assessed, the average relative error for all categories of farms is 4.1%, for agricultural enterprises 8.5%. Analysis of the results based on the authors’ tests showed a fairly high accuracy, that is 95,9% and 91.5%, respectively The developed computer-aided technology was transferred for operational testing to the Department of Agrometeorological Forecasts and Agrometeorology of the Federal State Budgetary Institution "Irkutsk WCEMS".
APA, Harvard, Vancouver, ISO, and other styles
5

Kateřina, Pazderů, and Hamouz Karel. "Yield and resistance of potato cultivars with colour flesh to potato late blight." Plant, Soil and Environment 63, No. 7 (2017): 328–33. http://dx.doi.org/10.17221/371/2017-pse.

Full text
Abstract:
The resistance to potato late blight (as AUDPC – the area under the disease progress curve) and yield were evaluated in precise field experiments with 13 colour-fleshed potato cultivars. Red Emmalie and Blaue Anneliese were the most profitable cultivars of potatoes with coloured flesh, the overall yield did not differ statistically from the control cv. Agria. Cv. Blaue Anneliese resistance to potato late blight was considerably better than both control cultivars, other 2 cultivars HB Red and Red Emmalie were similar to cv. Agria. Surprisingly, cv. Russet Burbank was found to be more resistant than most cultivars tested. A statistically significant weak dependence (r = 0.36) between the percentage of infestation of plants in the T6 evaluation date (6–8 August in individual years) and the yield was detected, the slightly stronger (r = 0.40) was the correlation between AUDPC values and total yields.
APA, Harvard, Vancouver, ISO, and other styles
6

Bombik, Antoni, Katarzyna Rymuza, and Tomasz Olszewski. "Multidimensional assessment of yield and quality of starchy potato cultivars." Agronomy Science 78, no. 4 (2024): 161–73. http://dx.doi.org/10.24326/as.2023.5240.

Full text
Abstract:
Tubers destined for starch production in potato industry need to meet certain commercial quality standards. The objective of the work was to conduct a multivariate assessment of yield potential and tuber quality of starchy potato cultivars. An analysis was performed of data describing potato cultivars listed in the National List of Potato Varieties (KRO) in Poland published by the Plant Breeding and Acclimatization Institute – National Research Institute at Radzików. Very early and early as well as medium late and late starchy potato cultivars were analysed in terms of 13 quantitative characteristic using principal component analysis and cluster analysis. It was demonstrated that, regardless of earliness group, the following traits had the greatest share in the total variation of starchy potato cultivars: tuber yield, starch content, starch yield and bioethanol yield. Cluster analysis allowed the division of very early and early cultivars into 3 groups. The cultivars Szyper, Zuzanna, Kuba and Jubilat, included in the first group, produced superior yields, the highest bioethanol yield and were the most resistant to potato blight. Medium late and late cultivars were divided into two groups. The first group (Pokusa, Gandawa, Rudawa, Hinga, Inwestor, Pasja, Pomorska and Ikar) gave poorer yields and lower bioethanol yields but were more resistant to potato blight in comparison with the second group (Sonda, Kuras, Jasia, Bzura, Skawa and Danuta). The multidimensional methods applied allowed a simultaneous assessment of starchy potato cultivars in terms of many characteristics, and grouping into clusters sharing similar traits.
APA, Harvard, Vancouver, ISO, and other styles
7

Hartemink, Alfred E. "Integrated Nutrient Management Research with Sweet Potato in Papua New Guinea." Outlook on Agriculture 32, no. 3 (2003): 173–82. http://dx.doi.org/10.5367/000000003101294442.

Full text
Abstract:
This paper summarizes a series of field experiments that investigated the effects of organic and inorganic nutrients on sweet potato tuber yield in the humid lowlands of Papua New Guinea. In the first experiment, plots were planted with Piper aduncum, Gliricidia sepium and Imperata cylindrica, which were slashed after one year, whereafter sweet potato was planted. Sweet potato yield was lowest after Gliricidia fallow, but no yield differences were found after piper and imperata fallow. In the second season, there was no significant difference in sweet potato yields. The second experiment consisted of a factorial fertilizer trial with four levels of N (0, 50, 100, 150 kg ha–1) and two levels of K (0, 50 kg ha–1). Nitrogen fertilizers increased yield in the first season, but depressed tuber yields in the second and third seasons. Potassium fertilizer had no effect on marketable tuber yield. The third experiment consisted of a comparison between N from inorganic fertilizer and poultry litter at four rates (0, 50, 100, 150 kg ha–1). No difference was found between the inorganic fertilizer and poultry litter, and the highest yields were found at 100 kg N ha–1. In the second season no significant response was observed. Although yield variation was considerable, this series of experiments has shown that sweet potato yield can be significantly increased by inorganic or organic N applications. Sweet potato yields after fallows were less variable than after inorganic nutrient inputs. Inputs of inorganic fertilizer or poultry litter may strongly increase or decrease tuber yields.
APA, Harvard, Vancouver, ISO, and other styles
8

Yunusov, Salohiddinjon, Gulom Ruzmetov, and Oydin Kahhorova. "Justification of mulching methods in early cultivation of the Acoustic variety of potato." E3S Web of Conferences 563 (2024): 03019. http://dx.doi.org/10.1051/e3sconf/202456303019.

Full text
Abstract:
Potato cultivation is a significant agricultural activity in Uzbekistan, covering an extensive land area of 253,000 hectares. However, the average yield per hectare is 163 quintals, which is lower compared to leading potato-producing countries such as the USA, the Netherlands, Iran, Pakistan, Russia, and Kyrgyzstan. To improve potato yields, experiments were conducted focusing on different cultivation practices. The results showed that the highest yield was achieved when seeds from the summer harvest were sown and mulched. Specifically, the control group achieved a yield of 95.6%, the group mulched with film achieved 97.0%, and the group mulched with manure achieved 96.1%. In contrast, the control group using seeds from the autumn harvest had lower yield percentages of 76.8%, 79.5%, and 78.0%, respectively. Based on these findings, it is recommended to use mulching methods, such as covering with manure or polyethylene film, to achieve the earliest and highest potato yields. Mulching helps conserve soil moisture, suppress weeds, and regulate soil temperature, creating favorable conditions for potato growth and development. Implementing these recommendations could potentially enhance potato production in Uzbekistan, leading to increased yields and improved food security for the population. Further research and adoption of modern agricultural practices can contribute to the sustainable development of potato cultivation in Uzbekistan.
APA, Harvard, Vancouver, ISO, and other styles
9

Vangessel, Mark J., and Karen A. Renner. "Effect of Soil Type, Hilling Time, and Weed Interference on Potato (Solanum tuberosum) Development and Yield." Weed Technology 4, no. 2 (1990): 299–305. http://dx.doi.org/10.1017/s0890037x00025434.

Full text
Abstract:
‘Atlantic’ and ‘Russet Burbank’ potato cultivars were grown on mineral and organic soils either with or without weeds and were hilled at two stages of potato development (potatoes cracking through the soil and potatoes 30 cm tall). A single hilling procedure was not adequate in either year for full-season weed control. Early hilling suppressed weeds and increased tuber yields more than conventional hilling on mineral soils in 1988 only. Early hilling tended to increase the relative biomass of C4weeds compared to C3weeds for both soils. Weeds reduced aboveground potato biomass on mineral and muck soils. However, reduced aboveground potato biomass measurements did not predict tuber yield reductions. Marketable yield of Russet Burbank potato was reduced by weed interference more than the yield of Atlantic on mineral soils when planted according to conventional cultural practices. However, the marketable yield of Atlantic potato was reduced more than Russet Burbank yield by weeds on muck soils. Weed interference influenced tuber quality on both mineral and muck soil.
APA, Harvard, Vancouver, ISO, and other styles
10

Tibiri, E. B., K. Somé, J. S. Pita, et al. "Effects of sweet potato feathery mottle virus, sweet potato chlorotic stunt virus and their co-infection on sweet potato yield in Western Burkina Faso." Open Agriculture 4, no. 1 (2019): 758–66. http://dx.doi.org/10.1515/opag-2019-0076.

Full text
Abstract:
AbstractTo determine the effects of sweet potato feathery mottle virus (SPFMV), Sweet potato chlorotic stunt virus (SPCSV) and their co-infection on sweet potato yield, twelve sweet potato varieties were assessed in a hotspot area in Western Burkina Faso. The experiment was carried out in a randomized complete-block design with the twelve varieties in three replications. Data were collected on plant growth parameters, plant virus symptoms and yield parameters. Additional testing for selected sweet potato viruses was done using a nitrocellulose membrane enzyme-linked immunosorbent assay (NCM-ELISA) and RT-PCR. SPFMV and SPCSV were the viruses detected in this study. Varieties Djakani and Ligri were virus-free and had the highest average yields out of twelve sweet potato varieties assessed. Field monitoring indicated that 58% of plants were found to be virus-infected. The results suggest that severe symptoms were associated with sweet potato virus disease (SPVD) and yield reduction. However, the interaction of SPCSV with other viruses, which may result in synergistic negative effects on sweet potato yield and quality, needs further research.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Potato yield"

1

Arpiwi, Ni Luh. "The application of novel methods for increasing the yield of small round seed potatoes (Solanum tuberosum L.) varieties Atlantic and Granola." University of Western Australia. School of Plant Biology, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0020.

Full text
Abstract:
Potato (Solanum tuberosum L.) varieties Atlantic and Granola are widely grown in Indonesia. The optimal method of cultivation in the tropics, due to the susceptibility of cut seed for disease, is by small (20 to 55 g) whole seed potatoes. However, the variety Atlantic produces mostly large tubers, which are not suitable for planting as whole seeds. Although Granola produces a reasonable proportion of small tubers it still produces a few in the larger size grades and there is no fresh market in Western Australia for the larger tubers for this variety. The aim of this study was to develop methods to be used in Western Australia that improve the yield of small seed potatoes for export to Indonesia. The influence of seed-potato storage duration (at 4°C) on subsequent stem growth was assessed after 30 days growth in a glasshouse (22°C/18°C, day⁄night). Seed potato storage for 22-28 (Atlantic) and 24-30 (Granola) weeks resulted in development of higher numbers of stems. A series of field experiment were designed to increase yield of small tubers. Apical sprout removal in Granola, but not Atlantic, increased the number of stems (by 27%), yield of 20-55 g potato (by 32%) and total yield (by 17%). Application of herbicide (paraquat + diquat) at low concentration during early tuber initiation decreased total yield in Atlantic (by 14%) and Granola (by 16%). Treating whole seed potatoes with carvone vapor two weeks before planting had no influence on stem or tuber number in both Atlantic and Granola but in Atlantic only, the total yield was reduced by 12%. Spraying plants with paclobutrazol during early tuber initiation inconsistently influenced tuber number and yield between the two varieties and two experiments. The influence of gibberellic acid (GA3) on stem number, total tuber number, yield of 20-55 g tubers and total yield was investigated by dipping seed pieces in a GA3 solution (20 mg⁄L) two days prior to planting. In Atlantic, GA3 treatment increased stem number (by 147%), total tuber number (by 75%) and yield of 20-55 g tubers (by 330%) without influencing total yield. In Granola, GA3 treatment increased stem number (by 50%), total tuber number (by 15%), yield of 20-55 g tubers (by 21%) and total yield (by 10%) The influence of gibberellic acid application (20 mg⁄L) to seed pieces before planting increased the number of small tubers through increased stem number. The shift toward a greater proportion of small tubers, without reducing total yield, had a greater influence in Atlantic than that in Granola. Treatment of GA3 and paclobutrazol together decreased total yield compared to that of GA3 alone
APA, Harvard, Vancouver, ISO, and other styles
2

Lucas, Carlos Krus Galvão. "Biogas production from potato peel waste." Master's thesis, Faculdade de Ciências e Tecnologia, 2014. http://hdl.handle.net/10362/12337.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Hogge, Murray Charles. "Effects of site, season and husbandry on yield and processing quality of the potato variety Pentland Dell." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330034.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Hansford, Rachael J. "Effect of AM colonization on growth and yield in potato." Thesis, University of Aberdeen, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400721.

Full text
Abstract:
This thesis aims to investigate the effect AM fungal inoculation and subsequent colonisation on the growth and tuber yield of potato. Different AM fungal inocula used produced different responses.  Some fungal inocula did not colonise potato roots at all, even in suitable growth substrates (i.e. <i>Glomus fasiculatum</i>).  It was observed that <i>Glomus mosseae</i> and Vaminoc T<span style='font-family:Symbol'>â formed the best associations with potato.  However, the viability of inocula is a major concern for their commercial use. Phosphate had a significant effect on the growth of potato and AM formation.  Plants grown in low phosphate were smaller in size and produced lower numbers of market sized tubers.  Mycorrhizal formation was promoted at low P soil concentrations.  Mycorrhizal plants grown at low P had increased yields of market sized tubers and tuber weights compared to the NM plants.  This was mainly due to improved P nutrition and resulted in a tuber yield comparable to that produced by plants grown in high P.  Increasing soil P concentrations decreased the level of AM formation.  If mycorrhizal plants were given high P or grown at a low light intensity then no beneficial effects of colonisation were seen.  Plants grown at low light intensities could not cope with the increased below ground demand of tubers and AM and this resulted in a decrease in the shoot C concentration.  Early tuber removal decreased C-assimilation, increased subsequent tuber number and decreased the level of AM formation.  This indicated that potato plants need to maintain a high photosynthetic rate in order to maintain an AM association.  A decrease in C-assimilation caused a decrease in AM formation. The formation of AM in different potato cultivars was investigated.  It was shown that different cultivars had varying responses to AM fungal inoculation.  Those cultivars that had low disease resistance to microbial pathogens had higher levels of AM colonisation.  Correlation analysis showed that there was an inverse relationship between disease resistance, and AM colonisation, irrespective of the growth of the potato.  This indicated that breeding for disease resistance may have bred against the formation of AM in potato.
APA, Harvard, Vancouver, ISO, and other styles
5

Al-Farhan, H. N. "The effects of plant growth substances on the yield of potatoes." Thesis, Bangor University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234517.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Soenarto. "Morphological components of yield in sweet potato (Ipomoea batatas (L.) Lam.)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ61177.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Carrillo, Salazar Jose Alfredo. "An examination of the prediction of yield from two potato models." Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342033.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Ibrahim, Razi. "Predicting Potato Yield Loss Due to Metribuzin Sensitivity in North Dakota." Thesis, North Dakota State University, 2018. https://hdl.handle.net/10365/28860.

Full text
Abstract:
A linear-log model to predict yield loss due to metribuzin injury was established by Love et. al. in 1993. Two experiments were conducted in 2016 and 2017 to evaluate and improve this model for application in North Dakota (ND). Metribuzin was applied (1.12 a.i./ha) when potato plants were 20-30 cm tall at Inkster, ND. The model did not accurately predict yield loss in 2016 but performed better in 2017. Foliar injury was more correlated with yield reduction than relative plant height. Results also indicated that new models that used foliar injury at 21 days after treatment (DAT) data and at 7 DAT data, most accurately predicted total yield loss and marketable yield loss, respectively. The new model performed similar to the previous model, but unlike previous model it can predict yield loss very early in growing season (21 DAT).<br>USDA Specialty Block Grant Program
APA, Harvard, Vancouver, ISO, and other styles
9

Bunyolo, A. M. "Effects of fertilizer nitrogen and water supply on growth and yield of the potato crops." Thesis, University of Reading, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379220.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Mohabir, G. "Biochemical investigations of yield-limitations in potatoes (Solanum tuberosum L.) under warm tropical conditions." Thesis, University of Reading, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380838.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Potato yield"

1

Singh, Pravin. Role of potassium and zinc on sweet potato: Effect of potassium and zinc on growth, yield and quality on sweet potato (Ipomoea batatas L) cv. CO-34. LAP LAMBERT Academic Publishing, 2017.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Molloy, Matthew. An investigation of various cultural factors affecting the seed yield of potatoes grown from minitubers of the cultivar record. University College Dublin, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

1944-, Mayor Enrique, and Brush Stephen B. 1943-, eds. La chacra de papa: Economía y ecología. CEPES, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Hackett, Richard A. The effects of mulch, plant population and nitrogen on the production of early potatoes. University College Dublin, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

P, Akatʹeva L., and Akademii͡a︡ nauk SSSR. Bashkirskiĭ nauchnyĭ t͡s︡entr., eds. Selekt͡s︡ionno-geneticheskie, fiziologo-biokhimicheskie i tekhnologicheskie aspekty intensifikat͡s︡ii proizvodstva kartofeli͡a︡: Tezisy dokladov naucho-proizvodstvennogo soveshchanii͡a︡, 28 fevrali͡a︡ - 2 marta 1989 g. BNT͡S︡ UrO SSSR, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Attila, Bussay. A burgonyatermés szimulálása növény-időjárás modellak segítségével =: Simulation of the potato yields by the help of crop-weather models. Országos Meteorológiai Szolgálat, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Tea Research Institute of Sri Lanka., International Potash Institute, and International Seminar on "Integrated Crop Management in Tea: Towards Higher Productivity" (1994 : Colombo, Sri Lanka), eds. Integrated crop management in tea: Towards higher productivity : international seminar of the Tea Research Institute and the International Potash Institute, Colombo, Sri Lanka, April 26-27, 1994. International Potash Institute, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

K, Golovko T., та Taskaev A. I, ред. Ėkologo-fiziologicheskie faktory produktivnosti kulʹturnykh rasteniĭ na Severe. Akademii͡a︡ nauk SSSR, Uralʹskoe otd-nie, Komi nauch. t͡s︡entr, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Macoun, W. T. Importance of planting good seed potatoes for high yields: The quality of the seed planted is of more importance than the variety ... Dept. of Agriculture, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

1995 potato objective yield survey: Interviewer's manual. U.S. Dept. of Agriculture, National Agricultural Statistics Service, Agricultural Statistics Board, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Potato yield"

1

Vos, J. "Potato." In Crop Yield. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-58554-8_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Jansky, Shelley H., David M. Spooner, and Paul C. Bethke. "Potato." In Yield Gains in Major U.S. Field Crops. American Society of Agronomy and Soil Science Society of America, 2015. http://dx.doi.org/10.2135/cssaspecpub33.c8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Rawlins, Stephen L., Gaylon S. Campbell, Ronald H. Campbell, and John R. Hess. "Yield Mapping of Potato." In Site-Specific Management for Agricultural Systems. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/1995.site-specificmanagement.c5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Pickup, Jon. "Will the Globodera pallida epidemic signal the end of the seed potato industry in Scotland?" In Integrated nematode management: state-of-the-art and visions for the future. CABI, 2021. http://dx.doi.org/10.1079/9781789247541.0046.

Full text
Abstract:
Abstract Among pests and diseases of potatoes, British potato growers consider potato cyst nematodes (PCN: Globodera pallida and G. rostochiensis) to cause the most damage. By feeding on the roots, PCN stunt plant growth, adversely affecting yields, tuber size and skin finish. Yield losses depend on the population level of the PCN in the soil, the soil type and the tolerance of the potato cultivar to the nematode damage. The increase in G. pallida has been most marked in the county of Angus, traditionally the part of Scotland most intensively cultivated with potatoes. The incidence of G. pallida in Angus is estimated as 9% of the area used for potato production, accounting for 68% of the total area of G. pallida infested land in Scotland. This chapter discusses the economic importance, host range, distribution, symptoms of damage, biology and life cycle, recommended integrated nematode management, and management optimization of PCN in Scotland. Future research requirements are also mentioned.
APA, Harvard, Vancouver, ISO, and other styles
5

Habyarimana, Ephrem, and Nicole Bartelds. "Yield Prediction in Sorghum (Sorghum bicolor (L.) Moench) and Cultivated Potato (Solanum tuberosum L.)." In Big Data in Bioeconomy. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71069-9_17.

Full text
Abstract:
AbstractSorghum and potato pilots were conducted in this work to provide a solution to current limitations (dependability, cost) in crop monitoring in Europe. These limations include yield forecasting based mainly on field surveys, sampling, censuses, and the use of coarser spatial resolution satellites. We used the indexes decribing the fraction of absorbed photosynthetically active radiation as well as the leaf areas derived from Sentinel-2 satellites to predict yields and provide farmers with actionable advice in sorghum biomass and, in combination with WOFOST crop growth model, in cultivated potatoes. Overall, the Bayesian additive regression trees method modelled best sorghum biomass yields. The best explanatory variables were days 150 and 165 of the year. In potato, the use of earth observation information allowed to improve the growth model, resulting in better yield prediction with a limited number of field trials. The online platform provided the potato farmers more insight through benchmarking among themselves across cropping seasons, and observing in-field variability Site-specific management became easier based on the field production potential and its performance relative to surrounding fields. The extensive pilots run in this work showed that farming is a business with several variables which not all can be controlled by the farmer. The technologies developed herein are expected to inform about the farming operations, giving rise to well-informed farmers with the advantage to be able to adapt to the circumstances, mitigating production risks, and ultimately staying longer in the business.
APA, Harvard, Vancouver, ISO, and other styles
6

Pavlista, Alexander D. "Sulfur and Marketable Yield of Potato." In Agronomy Monographs. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr50.c11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kawaye, Floney P., and Michael F. Hutchinson. "Maize, Cassava, and Sweet Potato Yield on Monthly Climate in Malawi." In African Handbook of Climate Change Adaptation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_120.

Full text
Abstract:
AbstractClimate change and climate variability in Malawi have negatively affected the production of maize, a staple food crop. This has adversely affected food security. On the other hand, there have been increases in growing area, production, yield, consumption, and commercialization of both cassava and sweet potato. Factors behind these increases include the adaptive capacity of these crops in relation to climate change and variability, structural adjustment programs, population growth and urbanization, new farming technologies, and economic development. Cassava and sweet potato are seen to have the potential to contribute to food security and alleviate poverty among rural communities.This study used a simple generic growth index model called GROWEST to model observed yields of maize, cassava, and sweet potato across Malawi between 2001 and 2012. The method can be viewed as a hybrid approach between complex process-based crop models and typical statistical models. For each food crop, the GROWEST model was able to provide a robust correlation between observed yields and spatially interpolated monthly climate. The model parameters, which included optimum growing temperatures and growing seasons, were well determined and agreed with known values. This indicated that these models could be used with reasonable confidence to project the impacts of climate change on crop yield. These projections could help assess the future of food security in Malawi under the changing climate and assist in planning for this future.
APA, Harvard, Vancouver, ISO, and other styles
8

Augustin, Bernd. "The need for new approaches for management of potato cyst nematodes: the view from the Rhineland-Palatinate." In Integrated nematode management: state-of-the-art and visions for the future. CABI, 2021. http://dx.doi.org/10.1079/9781789247541.0044.

Full text
Abstract:
Abstract Potato is an important crop throughout Europe and especially in Germany where potatoes are grown on over 250,000 hectares. The production of potato worldwide is negatively affected by the presence of the golden and the white potato cyst nematodes (PCN) Globodera rostochiensis and G. pallida. The two species originated in South America. PCN is present with restricted distribution in all counties in Germany where potato is produced and these infestations are strictly regulated. Both species are present and often in mixed populations. Potato yield and overall production is negatively impacted by both species of PCN from planting to harvest, but there are differences in importance within the country and on crop type. This chapter discusses the economic importance, host range, distribution, symptoms of damage, biology and life cycle, integrated nematode management (including the use of nematicides, resistant cultivars and rotation), and interactions with other nematodes and pathogens, of PCN. Results are also summarized of field trials conducted between 2010 and 2017 to compare the efficacy of resistant cultivars and nematicide Nemathorin 10G with the alternative control techniques biofumigation and sowing of Solanum sisymbriifolium that has PCN suppressive activity.
APA, Harvard, Vancouver, ISO, and other styles
9

Gavrić, Teofil, Emra Bašić, Drena Gadžo, Saud Hamidović, and Mirha Đikić. "The Effect of Biofertilization on Potato Yield Components." In 32nd Scientific-Expert Conference of Agriculture and Food Industry. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-47467-5_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Pridannikov, Mikhail. "Economic importance of the potato tuber nematode Ditylenchus destructor in Russia." In Integrated nematode management: state-of-the-art and visions for the future. CABI, 2021. http://dx.doi.org/10.1079/9781789247541.0049.

Full text
Abstract:
Abstract The potato tuber nematode (PTN), Ditylenchus destructor, is ranked second only to the potato cyst nematode, Globodera rostochiensis, in importance in Russia. D. destructor is distributed throughout the former Soviet Union, now the Russian Federation, but has had no significant economic impact in the past. This historically low impact was due to the fact that around 80-90% of potato tuber yield had been produced on small private gardens or fields of approximately 600 square metres. This chapter discusses the economic importance, host range, distribution, biology and life cycle, symptoms of damage, interactions with other nematodes and pathogens, recommended integrated nematode management and management optimization of D. destructor. Future research requirements are also mentioned.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Potato yield"

1

Neofytou, Eleni, Stelios P. Neophytides, Ilias Tsoumas, et al. "Potato yield empowerment by photosynthesis, carbon assimilation, and evapotranspiration." In Tenth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2024), edited by Silas C. Michaelides, Diofantos G. Hadjimitsis, Chris Danezis, et al. SPIE, 2024. http://dx.doi.org/10.1117/12.3037291.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Neophytides, Stelios P., Ilias Tsoumas, Andria Tsalakou, et al. "Invariant learning as a pathway to robust potato yield prediction." In Remote Sensing for Agriculture, Ecosystems, and Hydrology XXVI, edited by Christopher M. Neale, Antonino Maltese, Caroline Nichol, and Charles R. Bostater. SPIE, 2024. http://dx.doi.org/10.1117/12.3031554.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ifty, Rashedul Arefin, Afif Hossain Irfan, Md Ismail, and M. Jamshed Alam Patwary. "Potato Crop Yield Prediction: A Data-Driven Federated Learning Approach." In 2024 27th International Conference on Computer and Information Technology (ICCIT). IEEE, 2024. https://doi.org/10.1109/iccit64611.2024.11022589.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Tskitishvili, Eka, Lali Jgenti, Nino Lomidze, and Tengiz Vadachkoria. "TAXONOMIC STRUCTURE OF THE NEMATODE COMMUNITIES IN AGROECOSYSTEMS OF SHUAKHEVI (AJARA, GEORGIA)." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/3.2/s13.41.

Full text
Abstract:
Potatoes is the fourth important food crop worldwide after maize, wheat, and rice and are grown in more than 100 countries worldwide under temperate, subtropical and tropical conditions, however, they are considered as cool temperature crop. Potato is one of the most important food crops in Georgia and potato growing has always been the subject of great importance for settlement of food supply problems in country. Potato crops are severely affected by approximately forty soil borne diseases worldwide including those caused by soil inhabiting fungi, bacteria and nematodes. Plant-parasitic nematodes are among the important pests of potato production, they can cause serious yield losses but remain unnoticed, in most cases. Above ground symptoms of nematode damage are rarely observed since most nematodes cause damage on roots and tubers. The aim of this study is to determine the prevalence of plant parasitic nematodes in the main potatoe growing area in Ajara. Fauna of soil nematodes was studied in three villages of Shuakhevi municipality: Dgvani, Dabadzveli and Okhropilauri. Sampling was conducted in nine sites in early spring, in middle summer and in late fall. The 3 composite soil samples collected from each field (weighing 300-500g) consist of 50 individual sub-samples of soil and roots. Nematodes were extracted by a modified Baermann�s method from a sample of 50 g. and exposition time was 48 h. From a total of 83 species of nematodes were found. The richest by the number of species was Dorylaimida order that was presented by 26 species (32 % of species composition). The registered nematodes belong to 2 subclasses, 7 orders, 63 genus and 27 families. The largest abundance of nematodes was observed in the Dgvani village with115 specimens/ 50g soil , and the smallest was in Okhropilauri, with - 37 specimens/50g. Plant-parasitic nematodes from 6 genera (Ditylenchus, Tylechus, Tylenchorhynchus, Helicotylenchus, Pratylenchus, Aphelenchus) were found in soil and (or) potato root samples. All these nematodes can be divided into five groups according to their feeding habits. The omnivore group with 23 species (45,9%) in Spring, 38 species (34,2%) in Summer and 41 species (40,2%) in Autumn, constitut the core of nematode community. Investigations reveal that nematode populations and communities vary seasonally. Plant parasitic nematodes does not exceed a certain limit, which causes measurable economic damage.
APA, Harvard, Vancouver, ISO, and other styles
5

Андрийчук, Татьяна, та А. Скорейко. "Влияниe биопрепаратов на урожайность здоровых и пораженных фомозом клубней картофеля". У International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.09.

Full text
Abstract:
The results of studies on the effect of Trichodermin, Gaupsin, PhytoDoctor, Planriz on the yield of healthy and phomosis-affected potato tubers are presented. The positive effect of all applied biological products on potato productivity is shown. Pre-planting treatment and two foliar spraying contributed to an increase in yields, both infected (by 2.3-11.7 %) with phomosis, and healthy (by 7.9-16.4 %) potato tubers.
APA, Harvard, Vancouver, ISO, and other styles
6

Rabante-Hane, Lasma, Ilze Skrabule, and Ina Alsina. "Parameters used for the evaluation of potato (Solanum Tuberosum L.) Nitrogen use efficiency: a review." In Research for Rural Development 2022 : annual 28th international scientific conference proceedings. Latvia University of Life Sciences and Technologies, 2022. http://dx.doi.org/10.22616/rrd.28.2022.004.

Full text
Abstract:
Potato is one of the important crops worldwide, and cultivation requires a lot of resources and nitrogen (N) to ensure yield. This kind of growing technology can cause environmental pollution. It is necessary to optimize the management and use of potatoes with high nitrogen use efficiency (NUE) varieties as an alternative to the application of large amounts of fertilizers to improve the environmental impact of potato production without affecting yield and quality. The aim of this review is to find various morphological and physiological characteristics of the potato crop that can be used in potato breeding for NUE evaluation and to create new varieties with high NUE. Looking for traits such as yield, protein and starch content, each variety has its limits that can be affected by climatic conditions. Area Under Canopy Cover Progress Curve (AUCCPC) is potentially good for detecting NUE in field conditions. Nitrogen efficient genotypes tend to have early canopy development but a low amount of N in tubers. Due to different factors that can interact with genotypes under field conditions, the experiments in controlled conditions as in vitro system can be used for the investigation of genotypes in a short period. Under in vitro conditions, root development can be observed very well, which can usually be impossible in soil experiments.
APA, Harvard, Vancouver, ISO, and other styles
7

Kolychikhina, M. S. "Positive effect of preparations with antiviral properties on potato productivity." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-111.

Full text
Abstract:
In the small-plot experiment of the Russian State Agrarian University - Moscow Timiryazev Agricultural Academy against potato viruses in 2014-2019 were tested some kinds of preparations with antiviral activity: Pharmayod, GS (100 g/l of iodine); Immunocytophyte, TAB (20 g/kg arachidonic acid ethyl ester); Ecogel, WS (30 g/l of chitosan lactate); Amulet, TAB (composition of linear polyaminosaccharides (chitosan) in succinic acid solution); Zerox, WS (3000 mg /l colloidal silver); Viron, WS (biostimulant based on urea and citric acid with the addition of essential oils). According to the results of the studies, it was found that, in addition to the effect on the causative agents of viral diseases of potatoes, all tested preparations had a stable tendency to maintain or increase the yield of tubers of infected plants. The increase in the yield of tubers ranged from 0.5 to 1.3 kg/m2. In 2016 under the production conditions of Astrakhan region on the potato variety Impala infected with the PVM + PVS and PVM + PVS + PVY virus complexes a comparative assessment of the effect of Pharmayod and Immunocytophyte revealed a significant increase in the gross and marketable yield of potato plants in the areas with the use of these preparations compared to with control.
APA, Harvard, Vancouver, ISO, and other styles
8

Gavriliuck, Aliona, Avrelia Zelya, and L. Nemerytska. "The phytohormones usage as potato protection system element against potato fungi diseases in terms of western foreststeppe." In Scientific International Symposium “Advanced Biotechnologies - Achievements and Prospects” (VIth Edition). Institute of Genetics, Physiology and Plant Protection, 2022. http://dx.doi.org/10.53040/abap6.2022.52.

Full text
Abstract:
Introduction. Potato Solanum tuberosum L. is important agricultural crop. It takes im-portant place in food list for men food. It takes important place as a feed for animal husbandry and industry. The potato diseases, causative agents are different phytopathogenic organisms (fungi, viral, bacterium) is important problem for potato study today. Alternaria blight and late blight are dangerous diseases of fungi diseases. They take serious spread every year in Ukraine territory. They may cause serious losses for potato growing. The decrease quanitity of yield goods quality decrease, storage observed in recent years. The areas defeating happens through the reasons of farming culture decrease. Among them are: non-control fertilizers input and systems of potato nourishing, non- following the agrotechnical requirements for crop rotation optimal terms for planting, absence of quality seeds material, unfavorable weather conditions and defeating pathogen organisms of fungi nature. The agricultural crops protection from complex of pests is important task for agricul-ture. The agriculture losses 50-60% from the yield every year. The main crops’ yield may increase in terms of soils fertility and favorable climatic terms through the development of biological farming [1, 3, 4]. There are immunomodulators for this aim. They used as stress adaptogens, activators for growing and development. They enforce plants’ root system, nor-malize soil’s content and increase absorption of nutritious matters of crop. Purpose is to determine phytohormones impact on potato fungi development in area of Ukr SRPQS IPP NAAS.
APA, Harvard, Vancouver, ISO, and other styles
9

Martynova, K. V., I. N. Romanova, and N. V. Ptitsyna. "Nfluence of predecessors on the yield and quality of potato tubers of domestic and foreign selection." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-112.

Full text
Abstract:
As a result of the conducted research, it was found that in the conditions of the non-Chernozem zone, potato varieties of Madeira and Morning on sod-podzolic medium-loamy medium-cultivated soil are able to form a yield of tubers up to 33 t / ha. The influence of the sideral precursor on the yield and quality of potato tubers is scientifically justified.
APA, Harvard, Vancouver, ISO, and other styles
10

Bezarević, Nataša, Biljana Veljković, Goran Dugalić, Ranko Koprivica, Miloš Marjanović, and Bratislav Mijailović. "KALKULACIJA PROIZVODNJE KROMPIRA NA GAZDINSTVU U USLOVIMA DRAGAČEVA." In XXVII savetovanje o biotehnologiji. University of Kragujevac, Faculty of Agronomy, 2022. http://dx.doi.org/10.46793/sbt27.045b.

Full text
Abstract:
The aim of this paper is to calculate costs of potato production on area of 1.5 ha in 2020 on the Mijailović farm in the village of Gornja Kravarica, municipality of Lučani. Economic viability of production was analyzed. The calculation of costs calculated gross margin, and sensitivity analysis of the gross margin, as a significant indicator of success production in relation to the achieved yield and selling price potatoes, are presented. The total yield of mercantile potatoes was 65 t and the average selling price was 15 RSD per kg. To determine the financial result, all revenues and expenditures were taken into account, so gross margin in observed year amounted to 335,362 RSD.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Potato yield"

1

Nair, Ajay, Jennifer Tillman, Ray Kruse, and Dana Jokela. Effect of Plastic Mulch on Sweet Potato Yield and Quality. Iowa State University, Digital Repository, 2015. http://dx.doi.org/10.31274/farmprogressreports-180814-373.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Eshel, Dani, and Jiming Jiang. Postharvest sweetening of potato seed tubers and effects on their yield performance. United States Department of Agriculture, 2015. http://dx.doi.org/10.32747/2015.7600036.bard.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Eshel, Dani, and Jiming Jiang. Postharvest sweetening of potato seed tubers and effects on their yield performance. United States Department of Agriculture, 2017. http://dx.doi.org/10.32747/2017.7604291.bard.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Cohen, Yafit, Carl Rosen, Victor Alchanatis, David Mulla, Bruria Heuer, and Zion Dar. Fusion of Hyper-Spectral and Thermal Images for Evaluating Nitrogen and Water Status in Potato Fields for Variable Rate Application. United States Department of Agriculture, 2013. http://dx.doi.org/10.32747/2013.7594385.bard.

Full text
Abstract:
Potato yield and quality are highly dependent on an adequate supply of nitrogen and water. Opportunities exist to use airborne hyperspectral (HS) remote sensing for the detection of spatial variation in N status of the crop to allow more targeted N applications. Thermal remote sensing has the potential to identify spatial variations in crop water status to allow better irrigation management and eventually precision irrigation. The overall objective of this study was to examine the ability of HS imagery in the visible and near infrared spectrum (VIS-NIR) and thermal imagery to distinguish between water and N status in potato fields. To lay the basis for achieving the research objectives, experiments in the US and in Israel were conducted in potato with different irrigation and N-application amounts. Thermal indices based merely on thermal images were found sensitive to water status in both Israel and the US in three potato varieties. Spectral indices based on HS images were found suitable to detect N stress accurately and reliably while partial least squares (PLS) analysis of spectral data was more sensitive to N levels. Initial fusion of HS and thermal images showed the potential of detecting both N stress and water stress and even to differentiate between them. This study is one of the first attempts at fusing HS and thermal imagery to detect N and water stress and to estimate N and water levels. Future research is needed to refine these techniques for use in precision agriculture applications.
APA, Harvard, Vancouver, ISO, and other styles
5

Eshed, Yuval, and Sarah Hake. Shaping plant architecture by age dependent programs: implications for food, feed and biofuel. United States Department of Agriculture, 2012. http://dx.doi.org/10.32747/2012.7597922.bard.

Full text
Abstract:
Age dependent programs are responsible for the physiological and developmental differences of young and mature plants. These include a range of morphological characters such as leaf shape and leaf composition (waxes, lignin etc..) but also different in developmental potentials. Apical buds of juvenile plants are vegetative, while those of mature plants can be reproductive. Likewise, basal buds form in the axills of juvenile leaves have different fates than distal buds formed in the axils of mature leaves. The goal of our joint project is to understand and exploit theses age related programs for specific improvement of crop plants. To that end both the WIS group and the PGEC group are using mutants with age related defects as well as modified expression of miR156 to modify age related programs in crop plants- Tomato and potato in Israel and Maize, switchgrass and Brchipodium in the US. In the US, major effort were made to: Characterize the contribution of selected miR156 target genes to yield component traits of maize. Functional analysis of microRNAs and their targets in new crop plants. In Israel, the research progressed in several directions: Understanding the interplay between age dependent programs and the potential of tomato and potato meristems to produce tubers. Evaluation of the agronomic value of mutants that alter flowering regime in side shoots in general, and in the sympodial buds in particular Characterization of wild type axillary buds, comparing shoot ontogeny of gradually maturing apices from basal and distal positions along the main shoot of tomato.
APA, Harvard, Vancouver, ISO, and other styles
6

Valverde, Rodrigo A., Aviv Dombrovsky, and Noa Sela. Interactions between Bell pepper endornavirus and acute viruses in bell pepper and effect to the host. United States Department of Agriculture, 2014. http://dx.doi.org/10.32747/2014.7598166.bard.

Full text
Abstract:
Based on the type of relationship with the host, plant viruses can be grouped as acute or persistent. Acute viruses are well studied and cause disease. In contrast, persistent viruses do not appear to affect the phenotype of the host. The genus Endornavirus contains persistent viruses that infect plants without causing visible symptoms. Infections by endornaviruses have been reported in many economically important crops, such as avocado, barley, common bean, melon, pepper, and rice. However, little is known about the effect they have on their plant hosts. The long term objective of the proposed project is to elucidate the nature of the symbiotic interaction between Bell pepper endornavirus (BPEV) and its host. The specific objectives include: a) to evaluate the phenotype and fruit yield of endornavirus-free and endornavirus-infected bell pepper near-isogenic lines under greenhouse conditions; b) to conduct gene expression studies using endornavirus-free and endornavirus-infected bell pepper near-isogenic lines; and c) to study the interactions between acute viruses, Cucumber mosaic virus Potato virus Y, Pepper yellow leaf curl virus, and Tobacco etch virus and Bell pepper endornavirus. It is likely that BPEV in bell pepper is in a mutualistic relationship with the plant and provide protection to unknown biotic or abiotic agents. Nevertheless, it is also possible that the endornavirus could interact synergistically with acute viruses and indirectly or directly cause harmful effects. In any case, the information that will be obtained with this investigation is relevant to BARD’s mission since it is related to the protection of plants against biotic stresses.
APA, Harvard, Vancouver, ISO, and other styles
7

Aly, Radi, James H. Westwood, and Carole L. Cramer. Novel Approach to Parasitic Weed Control Based on Inducible Expression of Cecropin in Transgenic Plants. United States Department of Agriculture, 2003. http://dx.doi.org/10.32747/2003.7586467.bard.

Full text
Abstract:
Our overall goal was to engineer crop plants with enhanced resistance to Orobanche (broomrape) based on the inducible expression of sarcotoxin-like peptide (SLP). A secondary objective was to localize small proteins such as SLP in the host-parasite union in order to begin characterizing the mechanism of SLP toxicity to Orobanche. We have successfully accomplished both of these objectives and have demonstrated that transgenic tobacco plants expressing SLP under control of the HMG2 promoter show enhanced resistance to O. aegyptiaca and O. ramosa . Furthermore, we have shown that proteins much larger than the SLP move into Orobanche tubercles from the host root via either symplastic or apoplastic routes. This project was initiated with the finding that enhanced resistance to Orobanche could be conferred on tobacco, potato, and tomato by expression of SLP (Sarcotoxin IA is a 40-residue peptide produced as an antibiotic by the flesh fly, Sarcophaga peregrina ) under the control of a low-level, root-specific promoter. To improve the level of resistance, we linked the SLP gene to the promoter from HMG2, which is strongly inducible by Orobanche as it parasitizes the host. The resulting transgenic plants express SLP and show increased resistance to Orobanche. Resistance in this case is manifested by increased growth and yield of the host in the presence of the parasite as compared to non-transgenic plants, and decreased parasite growth. The mechanism of resistance appears to operate post-attachment as the parasite tubercles attached to the transgenic root plants turned necrotic and failed to develop normally. Studies examining the movement of GFP (approximately 6X the size of SLP) produced in tobacco roots showed accumulation of green fluorescence in tubercles growing on transformed plants but not in those growing on wild-type plants. This accumulation occurs regardless of whether the GFP is targeted to the cytoplasm (translocated symplastically) or the apoplastic space (translocated in xylem). Plants expressing SLP appear normal as compared to non-transgenic plants in the absence of Orobanche, so there is no obvious unintended impact on the host plant from SLP expression. This project required the creation of several gene constructs and generation of many transformed plant lines in order to address the research questions. The specific objectives of the project were to: 1. Make gene constructs fusing Orobanche-inducible promoter sequences to either the sarcotoxin-like peptide (SLP) gene or the GFP reporter gene. 2. Create transgenic plants containing gene constructs. 3. Characterize patterns of transgene expression and host-to-parasite movement of gene products in tobacco ( Nicotiana tabacum L.) and Arabidopsis thaliana (L.). 4. Characterize response of transgenic potato ( Solanum tuberosum L.) and tomato ( Lycopersicon esculentum Mill .) to Orobanche in lab, greenhouse, and field. Objectives 1 and 2 were largely accomplished during the first year during Dr. Aly's sabbatical visit to Virginia Tech. Transforming and analyzing plants with all the constructs has taken longer than expected, so efforts have concentrated on the most important constructs. Work on objective 4 has been delayed pending the final results of analysis on tobacco and Arabidopsis transgenic plants. The implications of this work are profound, because the Orobanche spp. is an extremely destructive weed that is not controlled effectively by traditional cultural or herbicidal weed control strategies. This is the first example of engineering resistance to parasitic weeds and represents a unique mode of action for selective control of these weeds. This research highlights the possibility of using this technique for resistance to other parasitic species and demonstrates the feasibility of developing other novel strategies for engineering resistance to parasitic weeds.
APA, Harvard, Vancouver, ISO, and other styles
8

Hatfield, Holly. Effects of irrigation practices on yield and dry matter of chip potatoes. Iowa State University, 2023. http://dx.doi.org/10.31274/cc-20240624-597.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Author, Not Given. Growth, yield and plant water relationships in sweet potatoes in response to carbon dioxide enrichment: Progress report. Office of Scientific and Technical Information (OSTI), 1986. http://dx.doi.org/10.2172/6414939.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Butler, Bryan, Tom Barse, Nahla V. Bassil, and Kim Lewers. How we came to have the 'Monocacy' hop. Hop Growers of America, 2023. http://dx.doi.org/10.32747/2023.8127202.ars.

Full text
Abstract:
The popularity of local craft beers in the US is growing, as is the desire for beers made with all-local ingredients. Maryland breweries have been able to use locally grown ingredients, including hops, but have not been able to claim use of a hop native to Maryland. 'Monocacy' hop was discovered in Maryland on a farm that was part of the original Carrollton Manor, once owned by Charles Carroll, a signer of the Declaration of Independence, in what was likely a cottage garden between the house and barn. Molecular fingerprinting established it as unique and clustering with hop accessions native to North America. Compared with cultivars currently grown in Maryland, 'Monocacy' is very large and vigorous, late maturing, and tolerant of of two-spotted spider mites, potato leafhoppers, and hop downy mildew. 'Monocacy' produces high yields of large open cones with an herbaal-floral aroma and abundant lupulin. Most hops have more alpha acids than beta acids, and contribute a bitter flavor to beers. The 'Monocacy' alpha acid content was lower than the beta acid content, with alpha to beta acid ratios ranging from 0.54 to 0.59 and could contribute to a beer that is not overly bitter. High myrcene (12.85%) and caryophyllene (38.13%) suggest a spicy-floral character. 'Monocacy' added an earthy and spicy note to lighter beers, and in some beers when used as a dry hop it added a light fruity note on the pallet in the finish. The most recent beer using 'Monocacy' had a medium-light body with a bisquity malt aroma and delicate "spicy/hoppy" nose. Maryland breweries are anxious to use this hop in their beers.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Potato yield' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography