Academic literature on the topic 'Seed potatoes – Yields – Indonesia'
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Journal articles on the topic "Seed potatoes – Yields – Indonesia"
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Gunadi, N., M. J. Potts, R. Sinung-Basuki, and Greta A. Watson. "On-farm Development of Potato Production from True Seed in Indonesia." Experimental Agriculture 28, no. 1 (January 1992): 31–39. http://dx.doi.org/10.1017/s0014479700022985.
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SummaryThree seasons of on-farm experimentation to develop potato production from botanical or true potato seed (TPS) under cool fertile conditions in West Java, Indonesia, are described. Twenty-three farmers experimented with two production systems: use of transplants, and use of seedling tubers produced in nursery beds. There was little yield difference between the systems, but an apparent progeny × system × season interaction was observed. All progenies were more resistant to late blight than the present cultivars grown from tubers. Appropriate matching of progeny and system gave seed of comparable quality with, but total yields slightly less than, certified imported seed of cv. Granola. Ware quality was slightly better than that of cv. Granola. Production costs were markedly less than for a tuber crop, making TPS ideal for small, resource-poor farmers.
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Hendra, Amelia, and Eliana Wulandari. "SUMBER PEMBIAYAAN DAN PRODUKSI BENIH KENTANG DI KECAMATAN KERTASARI KABUPATEN BANDUNG." Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis 6, no. 1 (January 21, 2020): 113. http://dx.doi.org/10.25157/ma.v6i1.2844.
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Potato (Solanum tuberosum L.) is one of the sought-after horticultural commodities and has a high economic value. Potato production in Indonesia is still relatively low compared to potato production in other countries. One obstacle in producing potato is the use of sufficiently high capital in potato seed production activities. Kertasari Subdistrict is one of the areas of potato seed production in West Java, especially in Bandung District. Capital constraints have caused farmers have to look for sources of financing that can meet their needs in order to continuously produce potato seeds. Some farmers rely on formal and non-formal financing sources while some others are able to meet capital needs with personal costs. The purpose of this research is to identify funding sources and potato seeds produced by farmers in Kertasari Subdistrict, Bandung District. This research uses a quantitative research design using a descriptive approach. Data analysis tools used are descriptive analysis using cross tabulation analysis. The results showed that farmers who produced potato seeds in Kertasari Subdistrict, Bandung District with funding sources from commercial banks, relatives or neighbors, and private funds had higher production yields compared to farmers without funding from these sources. Whereas farmers without funding from farmer groups, buyers, and agricultural kiosks, had higher production yields compared to farmers who had funding from these sources.
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Sumarni, Eni, Noor Farid, Arifin Noor Sugiarto, and Arief Sudarmadji. "G0 Seed Potential of The Aeroponics Potatoes Seed In The Lowlands With A Root Zone Cooling Into G1 In The Highlands." Rona Teknik Pertanian 9, no. 1 (April 1, 2016): 1–10. http://dx.doi.org/10.17969/rtp.v9i1.4380.
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Abstract. In tropical country likes in Indonesia, potato seeds that originated from temperate zone can only be produced in low temperature of highland. Besides this way has many limitation of productivity, it often causes soil erosion. To minimize environment destroying risk tuber seed production in lowland is a challenge. This research was done to trace that modified root zone cooling method of aerophonic system can be applied to produce high quality of tuber seeds in lowland. The First Generations (G0) of var. Atlantic and var. Granola were used as plant materials, and randomized block design (RBD) with four replications was applied in this research. Data regarding with vegetative as well as tuber production parameters were analyzed using Coefficient of variance (ANOVA) and continued with the least significant difference test (LSD; p = 5%). The results showed that aerophonic generated seeds (G0) had vigorous growth and could produce the normal G1. In term of tuber yield component and number of leaves var. Atlantic showed higher than var. Granola did. The comparison of seed weight between G0 and G1 was about 10 grams and 54 g on average, respectively. Since the size and weight of such G1 could be categorized as Large (L) in term of commercial seed market, It’s implied that the lowland modified aerophonic system could be nominated as a prospective method for producing G0 tuber seed in the future. Potensi Bibit G0 Dari Bibit Kentang Aeroponik Di Dataran Rendah Dengan Akar Zona Pendingin Menjadi G1 Di Dataran Tinggi Abstrak. Di negara tropis seperti di Indonesia, bibit kentang yang berasal dari zona sedang hanya dapat diproduksi pada suhu rendah di dataran tinggi. Selain itu cara ini memiliki banyak keterbatasan produktivitas dan sering menyebabkan erosi tanah. Meminimalkan resiko dampak kerusakan lingkungan akibat produksi benih umbi di dataran rendah adalah sebuah tantangan. Penelitian ini dilakukan untuk mengkaji bahwa metode zona akar pendingin sistem aeroponik dapat diterapkan untuk menghasilkan benih umbi kentang kualitas tinggi di dataran rendah. Generasi Pertama (G0) dari var. Atlantik dan var. Granola digunakan sebagai bahan penelitian, dan rancangan acak kelompok dengan empat ulangan digunakan dalam penelitian ini. Data mengenai vegetatif serta parameter produksi umbi dianalisis menggunakan Koefisien varians (ANOVA) dan dilanjutkan dengan uji BNT (LSD; p = 5%). Hasil penelitian menunjukkan bahwa aeroponik biji yang dihasilkan (G0) memiliki pertumbuhan yang kuat dan bisa menghasilkan G1 yang normal. Dari segi produktivitas dan jumlah daun, var. Atlantic menghasilkan produktivitas yang lebih tinggi serta jumlah daun yang lebih banyak dibandingkan var. Granola. Perbandingan berat biji antara G0 dan G1 adalah rata-rata sekitar 10 gram dan 54 g untuk masing-masing generasi. Ukuran dan berat dari G1 tersebut dapat dikategorikan sebagai ukuran besar dan berpotensi komersial untuk dipasarkan. Dari hasil penelitian yang telah dilakukan, dapat disimpulkan bahwa sistem aeroponik dataran rendah termodifikasi bisa diterapkan sebagai metode prospektif untuk memproduksi benih umbi kentang G0 di masa depan.
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Bandara, Manjula S., Karen K. Tanino, and Doug R. Waterer. "Plant Growth Regulators and Yields of Seed Potatoes." HortScience 30, no. 4 (July 1995): 853F—853. http://dx.doi.org/10.21273/hortsci.30.4.853f.
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Seed potato growers seek to maximize yields of desirable sized tubers. This study examined how foliar applications of plant growth regulators influence yields of drop or single-cut seed tubers under field conditions. In 1993, paclobutrazol (PTZ; 300, 450, and 600 mg·liter–1), kinetin (KIN; 10 and 20 mg·liter–1), and methyl jasmonate (MJ; 10–7, 10–6, 10–5, and 10–4 M) were applied to `Norland' (NOR) and `Russet Burbank' (RB) potatoes. In 1994, PTZ (300 mg·liter–1), KIN (both rates), and MJ (10–7 and 10–6 M) treatments were eliminated, and GA3 at 250 mg·liter–1 or KIN at 20 mg·liter–1 was applied to some of PTZ treatments. In 1994, the cultivar Shepody (SH) also was included. Plants were treated at two growth stages; NOR (1993), RB (1993 and 1994), and SH (1994) were treated when tubers were <10 mm or <20 mm in diameter. NOR (1994) was treated at stolon initiation (no tubers) or early tuber initiation (<8 mm in diameter). PTZ had no effect on seed tuber (25–50 mm in diameter) yield in NOR in either season. PTZ increased seed tuber number (STN) in RB by 29% to 40% and in SH by 57% to 70% over the controls. KIN had no effect on STN in any cultivar. MJ had no effect on STN in NOR (1993) or in RB in either season or in SH in 1994. In 1994, the highest rate of MJ (10–4 M) increased STN in NOR by 40% over the controls. GA3 had no beneficial effect on STN when applied after PTZ. This study suggests that, under field conditions, PTZ can increase seed tuber production in RB and SH while MJ was effective in NOR potatoes.
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Замалиева, Фания, Faniya Zamalieva, Гульгуна Сафиуллина, Gul'guna Safiullina, Татьяна Жарёхина, Tat'yana Zharehina, Людмила Рыжих, and Lyudmila Ryzhikh. "ALGORITHM OF RECEIVING HIGH YIELD OF POTATOES." Vestnik of Kazan State Agrarian University 13, no. 1 (August 1, 2018): 26–32. http://dx.doi.org/10.12737/article_5afafeab0714b6.22484609.
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The potato yield, planned on the basis of calculated methods of fertilizer application, in practice can fluctuate over a wide range. Many factors influence the increase in the removal of nutrients and potato yields. One of the most important factors for potatoes, as a vegetatively propagated culture, is the quality of the seed material. The purpose of the research was to substantiate the algorithm for obtaining high potato yields on the basis of determining the influence on the productivity of quality factors of seed material, the background of fertilizers, irrigation, the use of chemical etchant and biologically active preparations. Experiments of Kortni and Nevskiy varieties were conducted in Laishevsky district of the Republic of Tatarstan. It was revealed that in gray forest soils under experimental conditions, the optimal background of fertilizers with the main application on the bog was N120P140K140, on irrigation - N100P120K120. Higher doses of fertilizers on irrigation and on the bog caused lower yields. The use of the Maksim chemical preservative on the bog in the arid conditions of the year increased productivity by 6.0 ... 12.0%, on irrigation - reduced by 18.0 ... 24.6%. Biologically active preparations increased productivity in moist soil by 14.0 ... 17.0%. The consistent increase in the yield of a healthy seed of Kortni variety occurred under the influence of factors: the quality of seed material - from 10 to 15.5 tons per hectare - by 55%, the background of fertilizers N100P120K120- from 15.5 to 26.3 tons per hectare - by 70% irrigation - from 26.3 to 54.0 tons per hectare - by 105.3%, treatment with zircon - from 54.0 to 61.5 tons per hectare - by 14%. Against the backdrop nutrition of N100P120K120, calculated to yield of 20 tons per hectare, with additional factors, a yield of 61.5 tons per hectare (+ 208%) was obtained. In the degenerate seed material of Nevskiy variety, the increase in productivity with the progressive use of factors occurred to a much lesser extent: from the quality of the seed material - from 10.0 to 12.0 tons per hectare - by 20%, the fertilizer background N100P120K120 - from 12 to 17.5 tons per hectare - by 46%, irrigation - from 17.5 to 23 tons per hectare by 31.4%. Against the nutrition backdrop of N100P120K120, calculated to yield of 20 tons per hectare, Nevskiy yielded 23 tons per hectare (+ 15%). The importance of seed quality is a key in obtaining high yields of potatoes. In healthy seed potatoes, with additional factors - irrigation, fertilizers, BAP - much higher yields are created, compared to the addition of the degenerate seed material under the same conditions. On the basis of the obtained results, the following algorithm for applying the factors for obtaining high potato productivity is recommended: healthy seeds + irrigation + fertilizers + biologics.
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Waterer, Doug. "Influence of irrigation, nitrogen and seed piece spacing on yields and tuber size distribution of seed potatoes." Canadian Journal of Plant Science 77, no. 1 (January 1, 1997): 141–48. http://dx.doi.org/10.4141/p96-087.
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This study examined the influence of irrigation, soil nitrogen (N) levels and seed piece spacing on the yields and tuber size distribution of Norland, Russet Burbank and Shepody potatoes over three seasons at two sites in central Saskatchewan. The crops were grown under standard irrigated conditions or on dryland with in-row spacings of 15, 23 or 30 cm and total N levels of 200 or 300 kg ha−1 as either preplant or split applications. Irrigation greatly enhanced yields of all tuber size categories in the drier years but had less effect if seasonal precipitation reached or exceeded normal levels. Smaller size tubers formed a greater proportion of the total yield in crops exposed to drought stress. Norland was less affected by drought than the later-maturing cultivars. Yield responses to N were limited to situations where soil moisture was abundant or crop demand for nutrients was increased by close in-row spacings. Close in-row spacing increased total yields in some cases, while in others it resulted in a reduction in tuber size with little effect on overall yields. Yields for the cultivar Norland were less affected by seed piece spacing than yields for Russet Burbank or Shepody. Key words: Solanum tuberosum, drop seed, spacing, fertility
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O'Brien, P. J., and E. J. Allen. "Effects of site of seed production on seed yields and regrowth of progeny tubers in potatoes." Journal of Agricultural Science 107, no. 1 (August 1986): 83–101. http://dx.doi.org/10.1017/s0021859600066831.
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SUMMARYNine experiments are reported in which effects of site of seed production on dormancy, sprout and field growth of progeny tubers were recorded. The experiments used early varieties, Home Guard (four experiments), Red Craigs Royal (three experiments) and Arran Comet (two experiments) and in each, seed crops were grown with similar husbandry at sites differing in altitude and location in western England and Wales. There was no consistent effect of site of seed production on the timing of the end of dormancy, and the maximum effect in any year was 11 ± 1·2 (S.E.) days. The small effects of site on dormancy influenced initial sprout lengths, and this effect usually persisted up to planting in Home Guard and Red Craigs Royal, although the effects were small in magnitude. There was no effect of site of seed production on sprout lengths at planting or on field growth and yields in Arran Comet. In the other two varieties there was no effect of site of seed production on yield at early harvests, but at later harvests seed from cooler upland sites sometimes significantly outyielded lowland seed. There was, therefore, no evidence to support the view that locally produced seed was advantageous for early potato production. The results, together with those of the concurrent series with maincrop varieties reported by Wurr (1979), show that on half the occasions on which yields were measured covering the whole of the harvesting period, site of seed production had no effect on yields. In these experiments with early varieties effects of site occurred only at harvests later than the commercial harvesting of such old seed. It is therefore suggested that site of seed production is a much less important determinant of tuber yield than hitherto suggested, and of little practical significance.
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McKeown, Alan W. "Evaluation of chitting to enhance earliness of potatoes grown in southern Ontario." Canadian Journal of Plant Science 74, no. 1 (January 1, 1994): 159–65. http://dx.doi.org/10.4141/cjps94-034.
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Potato cultivars Atlantic, Conestoga, Jemseg, Superior and Yukon Gold, grown for early markets and mid-season use in Ontario were evaluated for response to chitting in 1987 to 1989. Seed tubers were chitted at 8 °C commencing in January, for an average of 408, 284 or 172 degree-days (base 4 °C). Controls were stored at 4 °C. Plants emerged quicker from chitted seed and produced higher early yields than the controls. Approximately 260 degree-days of chitting was optimal for early yield of Jemseg and Superior. For maximum emergence, 318 degree-days was required for Jemseg. Commencing chitting before March did not increase yields for the other cultivars. Low degree-day requirements are likely the result of cold storage of seed prior to chitting, resulting in more rapid accumulation of degree-days and/or lower base temperatures for growth. Key words:Solarium tuberosum, cultivars, emergence, yield, physiological age
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Ginandjar, Salamet, Agung Rahmadi, Muhammad Tsani Abdulhakim, and M. Subandi. "Economic Analysis of Potato Seed in West Java, Indonesia." Asian Journal of Agriculture and Rural Development 10, no. 4 (November 5, 2020): 756–63. http://dx.doi.org/10.18488/journal.ajard.2020.104.756.763.
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The purpose of this study was to study the supply of potato seed in West Java, Indonesia. The research respondent is farmers who use seed, with a sample of 377 farmers and a survey of all seed breeders totaling 43 farmers, using proportionate stratified random sampling. This research report is also complemented by a review analysis of potato seedling development in the last five years. There is considerable interest in the potential that can be developed, productive aged farmers, and adoption of new technologies. Factors exerting a strong influence include capital, technology, adequacy of seed, the proportion of certified seed, and farm credit. Factors identified as influencing the level of demand include the proportion of certified seed, seed prices, capital, and credit allocation for potato farming; at the level of supply factors that can exert influence are the availability of seed, the selling price of seed, and the capital of breeding farmers. Policy simulation on the use of certified seed potatoes shows that increase in the number of specific farm credits, the price of seed and fixed farm capital results in increased use of certified seed and reduced self-selection of seed.
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Nowacki, Wojciech. "THE COMPETITIVENESS OF POLISH AND FOREIGN VARIETIES IN POTATOES PRODUCTION IN POLAND." Annals of the Polish Association of Agricultural and Agribusiness Economists XIX, no. 4 (October 10, 2017): 141–47. http://dx.doi.org/10.5604/01.3001.0010.5178.
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The aim of this article is to assess the competitiveness of domestic and foreign potato cultivars grown in the country and to analyze the use of certified seed potatoes by the producers. The agronomic and utility value indicators were adopted as the measure of competitiveness of varieties. It has been shown that table cultivars of polish breeding in relation to foreign cultivars have generally higher agrotechnical value and higher yields but at the same time in many characteristics they have lower utility value (for example the look of tubers). The rate of use of certified seed potatoes depends on the degree of marketability of particular potato production sectors. It ranges from just 6.4% in multidirectional production to 25% in table and starch potato production, up to 40% in the production of early table potatoes and for food processing.
Dissertations / Theses on the topic "Seed potatoes – Yields – Indonesia"
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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.
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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
Books on the topic "Seed potatoes – Yields – Indonesia"
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Molloy, Matthew. An investigation of various cultural factors affecting the seed yield of potatoes grown from minitubers of the cultivar record. Dublin: University College Dublin, 1995.
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Chilver, A. S. The economic viability of true potato seed (TPS) in Indonesia. Lima, Perú: International Potato Center, 1994.
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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 ... Ottawa: Dept. of Agriculture, 1997.
Find full textBook chapters on the topic "Seed potatoes – Yields – Indonesia"
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VanderZaag, Peter, Tung Xuan Pham, Victoria Escobar Demonteverde, Cynthia Kiswa, Monica Parker, Shadrack Nyawade, Pieter Wauters, and Alex Barekye. "Apical Rooted Cuttings Revolutionize Seed Potato Production by Smallholder Farmers in the Tropics." In Solanum tuberosum - a Promising Crop for Starvation Problem [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98729.
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Potato apical rooted cuttings (ARC) originating from juvenile simple rounded leaf mother plants are a significant new way of transplanting and field growing of seed potatoes under smallholder field conditions in the tropical highlands. The aim of this paper is to highlight the development of the technology by researchers and farmers in Vietnam, Philippines, Kenya and Uganda. The development of cultivars with late blight resistance for which no source of tuber seed was available stimulated the creation of using ARC. The demystification of tissue culture by the 1980s greatly aided this development. The key hurdle was to multiply tissue culture plants in beds of growing media and maintain the physiological young stage of the mother plants from which apical cuttings could be repeatedly taken for several months to produce ARC for sale to farmers who demanded the new cultivars (cvs) with all the desirable attributes. The technology was first developed in warmer climates at lower elevations of less than 1,500 meters above mean sea level (mamsl) but gradually it was successfully developed at cooler climates in East Africa. The technology is well established in the highlands of Vietnam and Philippines. The largest family operation is producing over 4 million ARC annually. These high-quality ARC along with improved cvs have markedly improved yields of smallholder farmers, improving food security and increasing their income levels. In Kenya and Uganda there is a rapid adoption of ARC by seed producers, smallholder farmers and youths. The ARC revolution is bringing a great deal of excitement and promise of prosperity to remote poor highland communities.
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Bochenek, Zbigniew, and Katarzyna Dabrowska-Zielinska. "Monitoring Agricultural Drought in Poland." In Monitoring and Predicting Agricultural Drought. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780195162349.003.0022.
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Poland is situated in the Great European Plain between the Baltic Sea and the Carpathian and Sudety mountains. Its territory includes lowlands (91.3%), highlands (7.7%), and mountains (1%). Most of Poland’s soils are light soils of podsolic origin, which are usually of poor quality. It is for this reason that only 25% of the agricultural land, which accounts for 60% of the total territory and engages about 12% of population, is used for producing wheat, barley, sugar beets, rape seed, and vegetables. Average yields of main crops in Poland are lower than in the majority of West European countries. But the higher harvest areas put Poland sixth in Europe in the production of wheat, second in the production of rye and potatoes, and fourth in the production of sugar beet. The variation in the production of these crops during 1990–2000 is shown in figure 13.1. Private farms cover about 84% of the total agricultural land. About 55% of the farms have an individual area < 2 ha. Liquidation of state farms and substantial reduction in the number of cooperative and collective farms have impacted the size of individual farms and increased their importance in agricultural production and Polish export. Since 1980, the average area of individual farms increased from 6.5 to 7.8 ha. Poland is located in the region where precipitation exceeds transpiration. But since the 1960s, annual rainfall has gradually decreased by about 70 mm (Slota et al., 1992). Due to the shortage of precipitation, high temperature fluctuations in the spring, and cool weather during summertime, yields of the main crops have decreased and drought frequency has increased, particularly during the last decade. Drought usually begins in western Poland, moves through the central part, and eventually reaches eastern side (between 51°N and 54°N), which is highly susceptible to droughts. Regions located above 54°N are in the zone of Baltic Sea climate characterized by higher rainfall (600–700 mm) and hence are less prone to drought than the rest of Poland.