Relevant bibliographies by topics / Lychee

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

Academic literature on the topic 'Lychee'

Author: Grafiati
Published: 4 June 2021
Last updated: 20 February 2023

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Journal articles on the topic "Lychee"

1

Huang, L. L., F. Qiao, G. Peng, and C. F. Fang. "Analysis for Difficulty during Freeze-Drying Feizixiao Lychees." Journal of Food Quality 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/8359438.

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Compared to other cultivar lychees, volume density of Feizixiao lychee was higher due to serious shrinkage during freeze-drying (FD). Guiwei lychee and Nuomici lychee were used for comparison in order to illuminate the reason of the aforementioned phenomenon. Lower prefreezing temperature could not improve the volume density of Feizixiao lychee. Microstructure results show that pulp cell of Feizixiao lychee (tail) was smaller and more compact than Guiwei and Nuomici lychee pulp cell. In addition, there is a membrane around the surface of Feizixiao lychee pulp. And the microstructure of Feizixiao lychee tip pulp cell is different from tail pulp cell. Membrane and tip pulp cell are both smaller and more compact than tail pulp cell. These structure differences hinder the moisture removing of Feizixiao lychee during FD. Removing the membrane and tip pulp could not improve the volume density of Feizixiao lychee. Ultrasound treatment for 30 min could significantly enhance the volume density of Feizixiao lychee.
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Guo, Qiwei, Yayong Chen, Yu Tang, Jiajun Zhuang, Yong He, Chaojun Hou, Xuan Chu, Zhenyu Zhong, and Shaoming Luo. "Lychee Fruit Detection Based on Monocular Machine Vision in Orchard Environment." Sensors 19, no. 19 (September 21, 2019): 4091. http://dx.doi.org/10.3390/s19194091.

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Due to the change of illumination environment and overlapping conditions caused by the neighboring fruits and other background objects, the simple application of the traditional machine vision method limits the detection accuracy of lychee fruits in natural orchard environments. Therefore, this research presented a detection method based on monocular machine vision to detect lychee fruits growing in overlapped conditions. Specifically, a combination of contrast limited adaptive histogram equalization (CLAHE), red/blue chromatic mapping, Otsu thresholding and morphology operations were adopted to segment the foreground regions of the lychees. A stepwise method was proposed for extracting individual lychee fruit from the lychee foreground region. The first step in this process was based on the relative position relation of the Hough circle and an equivalent area circle (equal to the area of the potential lychee foreground region) and was designed to distinguish lychee fruits growing in isolated or overlapped states. Then, a process based on the three-point definite circle theorem was performed to extract individual lychee fruits from the foreground regions of overlapped lychee fruit clusters. Finally, to enhance the robustness of the detection method, a local binary pattern support vector machine (LBP-SVM) was adopted to filter out the false positive detections generated by background chaff interferences. The performance of the presented method was evaluated using 485 images captured in a natural lychee orchard in Conghua (Area), Guangzhou. The detection results showed that the recall rate was 86.66%, the precision rate was greater than 87% and the F1-score was 87.07%.
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Amaral, I., L. G. Matta, and D. J. Andrade. "Population dynamics of Aceria litchii (Keifer) (Acari: Eriophyidae) reveals differential responses of lychee varieties." Systematic and Applied Acarology 25, no. 2 (February 12, 2020): 214–24. http://dx.doi.org/10.11158/saa.25.2.4.

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Lychee productivity (Litchi chinensis) has been decreasing since the appearance of the erinose mite Aceria litchii (Keifer) in the main producing regions. This mite causes erinose formation in leaflets, branches, and fruits, which affects fruit productivity and quality. This study referred to an assessment of the population dynamics of this mite associated with abiotic factors in different lychee varieties during 25 months. For the assessments, the germplasm bank of the Faculty of Agrarian and Veterinary Sciences, UNESP–Jaboticabal, state of São Paulo, with lychees in full production was used. The assessed varieties were Bengal, Americana, Brewster, Groff, and WB4. Aceria litchii occurred in lychee plants over the years, reaching the highest levels in October and November. These results are considered important for the establishment of a more adequate management program for A. litchii. In this study, we verified that the Bengal variety (widely commercialized) is one of the varieties more susceptible to the mite attack. The variety Americana showed resistance to the mite. Despite the occurrence records for the pest in this variety, the number of individuals and, consequently, the erinose was reduced. Information reported here on the relationships between lychee varieties and the main crop pest is essential to implement plant-breeding programs or even select resistant or tolerant varieties to the erinose mite.
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Trung, Nguyen Dinh, Dinh Tran Ngoc Huy, Nguyen Thi Hang, and Le Thu Ha. "Effective Management Via a Business Model of Food and Drink Processing from Lychee Products in the Northern Areas of Vietnam." Alinteri Journal of Agriculture Sciences 36, no. 1 (June 22, 2021): 406–11. http://dx.doi.org/10.47059/alinteri/v36i1/ajas21061.

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In this study, authors aim to figure out the effectiveness of the food and drink process in the case of making lychee juice and lychee-tea combination fruit juice in a tropical country such as Vietnam, via a business model, with inputs, process, and outputs. We used scientific methods such as: qualitative analysis, synthesis and inductive methods, with description and explanatory methods. We also build a typical quantitative business model to measure profits of our lychee project. We propose to buy lychee (red lychee) with black tea from Northern provinces such as Thai Nguyen city, Hai Duong and Ha Giang provinces, etc. Then we can have a business model of making fruit juice from lychee products (red lychee with green or black tea). This will shows effectiveness of delicious food and drink making from good agricultural products of Vietnam. Last but not least, we emphasizes positive and healthy aspects of lychee products and lychee fruit juice in our country, Vietnam. And also roles of banks in project financing is also a good way to support microfinancing for star-ups and our business model.
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Li, Xiang, Enli Lu, Huazhong Lu, Boyi Xiao, Jiaming Guo, and Pengfei Li. "Design and Testing of a Denucleation and Decortication Device for Lychee." Journal of the ASABE 65, no. 3 (2022): 531–39. http://dx.doi.org/10.13031/ja.13778.

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Abstract. An automatic machine for lychee denucleation and decortication was designed to improve lychee processing efficiency and ensure the integrity of the lychee pulp. The main structure and operating parameters of this machine were determined by theoretical analysis and two orthogonal tests. The effects of the denucleation knife diameter, processing speed, and distance during denucleation and decortication were investigated. The denucleation rate, decortication rate, and juice loss rate were evaluated. The results of the processing tests showed that the denucleation rate was 94% when the diameter of the lychee fruit was between 29 and 33 mm, the diameter of the lychee seed was less than 10 mm, the diameter of the denucleation knife was 6 mm, and the processing speed of the denucleation knife was 0.5 m s-1. The decortication rate was 85% when the diameter of the baffle hole was 26 mm and there were eight grooves in the hole, yielding zero distance between the upper end of the decortication rod and the groove during operation. This machine is designed to perform automatic lychee processing, which includes the functions of denucleation, decortication, and lychee pulp separation. The processing speed of the machine is 600 kg d-1. This enhanced output is ten times greater than the output of conventional processing, and significant production costs are saved. Keywords: Decortication, Denucleation, Lychee, Processing, Pulp.
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Vilasachandran, T., and Steven A. Sargent. "Postharvest Quality of Lychee Fruit: Role of Relative Humidity and Panicle." HortScience 32, no. 3 (June 1997): 433D—433. http://dx.doi.org/10.21273/hortsci.32.3.433d.

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Pericarp browning, weight loss, and the associated quality deterioration are the unsolved postharvest problems of lychee (Litchi chinensis Sonn.). Freshly harvested fruits (`Brewster') were stored ± plastic wrap (99% and 84% relative humidity, RH, respectively) and ± panicle at 5°C for 18 days to simulate commercial handling scenarios. There were no significant losses in pericarp color (L*, hue angle, chroma value), total soluble solids, and total sugars from initial values for wrapped fruits. Wrapped lychees were 100% marketable, compared to 17% for unwrapped fruits. The former retained higher weight, moisture content and total titratable acidity (TTA, pulp), and lower pulp pH. Colletotrichum sp., Cladosporium sp., and Alternaria sp. caused decay in 56% of unwrapped fruits, whereas wrapped fruits were free of decay. Fruits with panicles had significantly higher weight loss (3%) than clipped fruits for both wrapped and unwrapped fruits. Pulp TTA tended to decrease and pH to increase more in fruits with panicle. Postharvest quality of lychee fruits was significantly extended by removing the panicle and maintaining nearly saturated RH during handling and storage.
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Ngoc-Huy, Dinh Tran, Nguyen Thi Hang, Le Thi Thanh-Huong, and Pham Van Hong. "FOOD AND DRINK PROCESSING FROM LYCHEE PRODUCTS IN THE NORTHERN PROVINCES OF VIETNAM - AND ROLES OF AGRICULTURE PROJECT FINANCING." Revista de Investigaciones Universidad del Quindío 33, no. 1 (July 21, 2021): 187–95. http://dx.doi.org/10.33975/riuq.vol33n1.555.

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The purpose of this study focuses on presenting the food and drink process in the case of making lychee juice and lychee-tea combination fruit juice in a tropical country such as Vietnam. We mainly use methods of qualitative analysis, synthesis and inductive methods, with description and explanatory methods. Authors also use a value chain approach from a material supply (lychee products) to production and market distribution.Research results show us that choosing good red lychee together with good green or black tea, esp. Lipton tea, which is produced from the region of material supplying in the Northern region of Vietnam, then mixed with sugar and ice, using little vegetables will be very good for everybody health, functioning as medical treatment to prevent heart disease, and helps men and women stronger.In the meantime, we also propose lychee and tea planting policies and capital financing policies in the country, esp. In the north of Vietnam. For instance, the nation needs to continue to negotiate with countries that have not yet allowed Vietnam’s fresh lychee to be imported into developed countries (such as Korea, ...); The state/province cooperates with donors and businesses in trade promotion activities in potential export markets for Vietnamese lychee and fruit products (Japan, Korea, US, EU, ASEAN…).
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Sharmin, Tajnuba, Shamim Reza, Md Azadul Islam, Shamim Hossain, Saddam Hossain, Abu Darda Masud, Asraful Alam, and Fahriha Nur A Kabir. "DEVELOPMENT OF LYCHEE PULPY DRINKS AND QUALITY ASSESSMENT DURING STORAGE." Sustainability in Food and Agriculture 2, no. 1 (January 6, 2021): 31–39. http://dx.doi.org/10.26480/sfna.01.2021.31.39.

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The experiment was concerned with developing of Lychee pulpy drinks to assess its prospect in respect to its marketability and food value. The fruits were collected and the pulp was extracted. Then the pulp was analyzed for proximate composition. Lychee pulpy drinks were prepared, analyzed the changes of TSS (Total soluble solid), acidity, pH, viscosity and gas volume and compared with carbonated lychee pulpy drinks and carbonated lychee drinks. Products were stored at room temperatures in PET (polyethylene terephthelate) bottles and changes during storage were observed at an interval of 1 month for a period of 7 months. A testing panel consisting 14 panelists studied the acceptability of the samples. The consumer’s preferences were measured by statistical analysis of the scores obtained from the response of the panel. Among the samples the following lychee pulpy drink was awarded the highest scores by the panelists.
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Chen, Wen-Shaw, and Mei-Lan Ku. "Ethephon and Kinetin Reduce Shoot Length and Increase Flower Bud Formation in Lychee." HortScience 23, no. 6 (December 1988): 1078. http://dx.doi.org/10.21273/hortsci.23.6.1078.

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Abstract In recent years, the market price of lychee (Litchi chinensis Sonn.) has dropped steeply in the “on” year, depressing the incomes of farmers. If the flowering could be controlled, the problem could be alleviated. Normally flower bud formation of ‘Heh Yeh’ lychee occurs in late November and panicles emerge in mid-January of the next year. Nakata (3) and others obtained a flowering response in lychee with various concentrations of sodium naphthaleneacetate (SNA). Nakata indicated that blossoming of lychee in Hawaii is favored by dry autumn months followed by substantial rainfall from December to February. Under these conditions, SNA appeared to inhibit vegetative growth, which was a prerequisite for floral initiation. Attempts to induce flower bud formation with SNA and other chemical treatments have not been successful in Taiwan. The objective of this study was to determine the effect of ethephon and kinetin on shoot growth and flower bud formation of field-grown lychee in Taiwan.
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Chen, Weixin. "666 Lychee Production and Postharvest Technologies in China." HortScience 35, no. 3 (June 2000): 513C—513. http://dx.doi.org/10.21273/hortsci.35.3.513c.

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Lychee is a well-known subtropical fruit, much appreciated for its attractive red peel and excellent taste, but the fruit is very prone to postharvest peel browning and decay. China is the world leader in both acreage and yield of lychee production. Extensive research has been conducted to extend the fruit quality and shelf life. The talk presents a general review of the current research on postharvest physiology and shelf life preservation technologies of lychee in China.
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Dissertations / Theses on the topic "Lychee"

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Chen, Ruiji. "The effect of modified atmosphere packaging and methyl jasmonate on the shelf life of lychee." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1563501432071153.

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Bryant, Philippa. "Optimising the Postharvest Management Of Lychee (Litchi chinensis Sonn.) - A Study of Mechanical Injury and Desiccation." Thesis, The University of Sydney, 2004. http://hdl.handle.net/2123/629.

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The major objective of the research was to improve lychee postharvest management, through a greater understanding of mechanical injury and moisture loss. Mechanical injury is a known cause of postharvest loss in lychee, but previously published information has been limited to broad observations. In this study, the symptoms of mechanical damage in lychee were defined, including quantitative measurement of colour changes. Impact injury caused protuberance tip darkening, cracking of the pericarp and significant changes in skin colour. Compression also typically caused tip darkening, and severe loads were capable of puncture, shape distortion and skin cracking. Abrasion and vibration injuries were characterised by strong yellowing of pericarp colour, possibly due to the leakage of cell contents onto the fruit surface. Vibration also caused significant darkening and loss of colour saturation. Vibration has not previously been mentioned as an issue in lychee postharvest management, but appeared to be as important a problem as desiccation browning at the wholesale level, both in incidence and severity. Mechanically damaged fruit consistently showed increased ethylene and carbon dioxide synthesis, and moisture loss was increased by up to 30%. Some significant changes in skin biochemistry and cuticle properties were also detected. The study of damaged tissue by SEM revealed distinctive patterns of surface tissue disruption. Open pericarp cracking was a particularly detrimental injury, causing significantly increased electrolyte leakage and rapid pathogen development. The effects of load characteristics, such as magnitude, method of application, site, repetition and cushioning, on the extent of damage were defined. Fruit characteristics such as cultivar, gross morphology, temperature, hydration and surface wetness were shown to significantly affect damage levels. Small seed size was correlated with increased cracking susceptibility. Fruit surface wetness exacerbated vibration or abrasion damage. Turgid fruit were less susceptible to vibration and abrasion damage, but showed increased susceptibility to impact cracking. Previously neglected aspects of desiccation browning research were studied, including cultivar and maturity effects, sites of moisture loss and the role of air currents. Cultivar effects on moisture loss were obscured by pre-harvest factors, but consistent cultivar differences were detected in desiccation browning, possibly related to skin thickness. In contrast, maturity levels over a marketable range had little effect on weight loss or browning. Moisture was lost fairly evenly over the fruit surface, but poor postharvest handling appeared to massively increase loss from the protuberance tips. Moisture loss was shown to substantially increase ethylene synthesis. The crucial role of air currents in exacerbating lychee moisture loss was emphasised, and the relationship between air speed and weight loss was defined. The research contributed to a greater understanding of the processes of mechanical damage and moisture loss in lychee, leading to improved protocols for the postharvest management of the fruit. Improved management of mechanical damage and moisture loss will ultimately improve fruit quality and reduce postharvest losses, hence increasing returns to industry.
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Bryant, Philippa. "Optimising the Postharvest Management Of Lychee (Litchi chinensis Sonn.) � A Study of Mechanical Injury and Desiccation." University of Sydney. Crop Science, 2004. http://hdl.handle.net/2123/629.

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The major objective of the research was to improve lychee postharvest management, through a greater understanding of mechanical injury and moisture loss. Mechanical injury is a known cause of postharvest loss in lychee, but previously published information has been limited to broad observations. In this study, the symptoms of mechanical damage in lychee were defined, including quantitative measurement of colour changes. Impact injury caused protuberance tip darkening, cracking of the pericarp and significant changes in skin colour. Compression also typically caused tip darkening, and severe loads were capable of puncture, shape distortion and skin cracking. Abrasion and vibration injuries were characterised by strong yellowing of pericarp colour, possibly due to the leakage of cell contents onto the fruit surface. Vibration also caused significant darkening and loss of colour saturation. Vibration has not previously been mentioned as an issue in lychee postharvest management, but appeared to be as important a problem as desiccation browning at the wholesale level, both in incidence and severity. Mechanically damaged fruit consistently showed increased ethylene and carbon dioxide synthesis, and moisture loss was increased by up to 30%. Some significant changes in skin biochemistry and cuticle properties were also detected. The study of damaged tissue by SEM revealed distinctive patterns of surface tissue disruption. Open pericarp cracking was a particularly detrimental injury, causing significantly increased electrolyte leakage and rapid pathogen development. The effects of load characteristics, such as magnitude, method of application, site, repetition and cushioning, on the extent of damage were defined. Fruit characteristics such as cultivar, gross morphology, temperature, hydration and surface wetness were shown to significantly affect damage levels. Small seed size was correlated with increased cracking susceptibility. Fruit surface wetness exacerbated vibration or abrasion damage. Turgid fruit were less susceptible to vibration and abrasion damage, but showed increased susceptibility to impact cracking. Previously neglected aspects of desiccation browning research were studied, including cultivar and maturity effects, sites of moisture loss and the role of air currents. Cultivar effects on moisture loss were obscured by pre-harvest factors, but consistent cultivar differences were detected in desiccation browning, possibly related to skin thickness. In contrast, maturity levels over a marketable range had little effect on weight loss or browning. Moisture was lost fairly evenly over the fruit surface, but poor postharvest handling appeared to massively increase loss from the protuberance tips. Moisture loss was shown to substantially increase ethylene synthesis. The crucial role of air currents in exacerbating lychee moisture loss was emphasised, and the relationship between air speed and weight loss was defined. The research contributed to a greater understanding of the processes of mechanical damage and moisture loss in lychee, leading to improved protocols for the postharvest management of the fruit. Improved management of mechanical damage and moisture loss will ultimately improve fruit quality and reduce postharvest losses, hence increasing returns to industry.
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Ciglasch, Holger. "Insecticide dynamics in the soil environment of a tropical lychee plantation a case study from Northern Thailand /." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=980860342.

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Cavallari, Ludmilla de Lima [UNESP]. "Raleio de frutos em variedades de lichieira." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/105148.

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Made available in DSpace on 2014-06-11T19:33:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-03-20Bitstream added on 2014-06-13T18:45:36Z : No. of bitstreams: 1 cavallari_ll_dr_jabo.pdf: 960913 bytes, checksum: 1ea879905d95fc2a314dd2cd0f45b40c (MD5)
O raleio consiste na retirada do excesso de frutos e objetiva aumentar o tamanho dos frutos comercializáveis, evitar quebra de ramos, reduzir custos da colheita e promover equilíbrio entre fase vegetativa e reprodutiva da planta. Além disso, este procedimento promove a melhora de coloração, aumento do teor de sólidos solúveis e mantém vigor da planta. Este trabalho teve como objetivo avaliar os efeitos do raleio de frutos em cinco variedades de lichieira (Bengal, Americana, Mauritius, Sweet Clift e WB4). Em delineamento experimental inteiramente casualizado (DIC), com 5 tratamentos e 7 repetições, com três plantas por repetição durante dois anos consecutivos. Os tratamentos utilizados foram as intensidades de raleio, caracterizadas pelo número de frutos deixados nas panículas do ramo terminal, sendo T1: 3 frutos/inflorescência; T2: 6 frutos/ inflorescência; T3: 9 frutos/ inflorescência; T4: 12 frutos/ inflorescência; T5: sem raleio (controle). As avaliações foram por colorimetria dos frutos maduros e suas análises físicas e químicas. Em função das características analisadas a ‘Mauritius’ possui qualidades semelhantes a ‘Bengal’, sendo um material promissor para as regiões de cultivo de lichieira. A variedade Mauritius possui características muito semelhantes às da ‘Bengal’. Além de que a ‘Mauritius’ foi a que mais teve influência, do raleio, na qualidade dos frutos. A AT foi a variável que mais foi influenciada pelo raleio de frutos. No entanto o raleio teve pouca influência na qualidade dos frutos
Thinning is the removal of excess fruit and aims to increase the size of marketable fruit, avoid breaking branches, reduce harvesting costs and promote a balance between vegetative and reproductive phases of the plant. Furthermore, this procedure promotes the color improvement, increased soluble solids and maintains plant vigor. This research aimed to evaluate the effects of thinning fruit in five varieties of lychee (Bengal, Americana, Mauritius, Sweet Clift and WB4). In an experiment completely randomized, (CRD) with five treatments and seven replications, with three plants per replication. The treatments were the intensities of thinning characterized by the number of fruit left on the branch terminal panicles, T1: 3 fruits / branch; T2: 6 fruits / branch; T3: 9 fruit / branch; T4: 12 fruits / branch; T5: no thinning (control). The evaluations were colorimetric through the ripe fruits, physical and chemical analysis for each of the varieties. Depending of analyzed characteristics the 'Mauritius' has qualities similar to 'Bengal', being a promising material for lychee growing regions. The Mauritius variety has characteristics closely resembling those of 'Bengal'. Besides that Mauritius was the variety that had more influence, thinning, and fruit quality. Acidity (direct titration) was the variable that was most influenced by the thinning of fruits. However thinning had little influence on fruit quality
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García, Pérez Eliseo. "Influência de temperatura, anelamento e reguladores de crescimento, sobre a floração e frutificação de lichieiras /." Jaboticabal : [s.n.], 2006. http://hdl.handle.net/11449/105175.

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Orientador: Antonio Baldo Geraldo Martins
Banca: José Antônio Alberto da Silva
Banca: Carlos Ruggiero
Banca: Dalmo Lopes de Siqueira
Banca: João Alexio Scarpare Filho
Resumo: O trabalho foi realizado nas Fazendas Santo Antônio e Jurupema, localizadas no Município de Taquaritinga -SP, Brasil, de abril de 2003 a dezembro de 2005, com o objetivo de estudar a influência da temperatura, anelamento e alguns reguladores de crescimento sobre a floração e a produção de lichieiras cultivar Bengal. Foram registrados dados de produção e temperaturas, precipitação e horas acumuladas com temperaturas inferiores a 15,5° C, e correlacionados para entender o grau de interação. Foi realizado anelamento de ramos de diferentes diâmetros, para conhecer o seu efeito sobre a floração e a frutificação. O anelamento não teve efeito sobre a brotação vegetativa após a colheita, mas as maiores concentrações de PBZ reduziram significativamente a brotação vegetativa e o comprimento dos ramos. O uso de ANA provocou queimaduras nas inflorescências e queda de frutos, mas os que permaneceram, não apresentaram alterações nas características físicas e nos sólidos solúveis. Não foi observado efeito significativo da aplicação de GA3, sobre a fixação de frutos. A queda de frutos, a partir de uma massa de 2 g até a colheita, é de 50%.
Abstract: The work was carried through on Santo Antonio and Jurupema farms, located in Taquaritinga, São Paulo State, Brazil, in the period from April 2003 to December 2005, with the objective to study the influence of temperature, girdling and some growth regulators on the flowering, fruiting and production of lychee trees cultivar Bengal. It was registered production data and temperatures, precipitation and accumulated hours with inferior temperatures to 15.5°C, and correlated to understand the interaction degree. Girdling of branches of different diameters was carried through, to know its effect on the flowering and fruiting. The girdling didn't have effect on the vegetative flushes after the harvest, but the biggest concentrations of PBZ reduce the vegetative flushes and the length of shoots significantly. Spray with NAA provoked burns in the panicles and drop of fruits, but the ones that had remained did not have present alterations in the characteristics and in the soluble solids. Beneficial effect of the application of GA3 on the fruit set was not observed. The drop of fruits, starting from a weight of 2 g to the harvest, is of 50%.
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Cavallari, Ludmilla de Lima. "Raleio de frutos em variedades de lichieira /." Jaboticabal, 2013. http://hdl.handle.net/11449/105148.

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Orientador: Antonio Baldo Geraldo Martins
Banca: Carlos Ruggiero
Banca: Renata Aparecida de Andrade
Banca: Simone Rodrigues da Silva
Banca: Aparecida Conceição Boliani
Resumo: O raleio consiste na retirada do excesso de frutos e objetiva aumentar o tamanho dos frutos comercializáveis, evitar quebra de ramos, reduzir custos da colheita e promover equilíbrio entre fase vegetativa e reprodutiva da planta. Além disso, este procedimento promove a melhora de coloração, aumento do teor de sólidos solúveis e mantém vigor da planta. Este trabalho teve como objetivo avaliar os efeitos do raleio de frutos em cinco variedades de lichieira (Bengal, Americana, Mauritius, Sweet Clift e WB4). Em delineamento experimental inteiramente casualizado (DIC), com 5 tratamentos e 7 repetições, com três plantas por repetição durante dois anos consecutivos. Os tratamentos utilizados foram as intensidades de raleio, caracterizadas pelo número de frutos deixados nas panículas do ramo terminal, sendo T1: 3 frutos/inflorescência; T2: 6 frutos/ inflorescência; T3: 9 frutos/ inflorescência; T4: 12 frutos/ inflorescência; T5: sem raleio (controle). As avaliações foram por colorimetria dos frutos maduros e suas análises físicas e químicas. Em função das características analisadas a 'Mauritius' possui qualidades semelhantes a 'Bengal', sendo um material promissor para as regiões de cultivo de lichieira. A variedade Mauritius possui características muito semelhantes às da 'Bengal'. Além de que a 'Mauritius' foi a que mais teve influência, do raleio, na qualidade dos frutos. A AT foi a variável que mais foi influenciada pelo raleio de frutos. No entanto o raleio teve pouca influência na qualidade dos frutos
Abstract: Thinning is the removal of excess fruit and aims to increase the size of marketable fruit, avoid breaking branches, reduce harvesting costs and promote a balance between vegetative and reproductive phases of the plant. Furthermore, this procedure promotes the color improvement, increased soluble solids and maintains plant vigor. This research aimed to evaluate the effects of thinning fruit in five varieties of lychee (Bengal, Americana, Mauritius, Sweet Clift and WB4). In an experiment completely randomized, (CRD) with five treatments and seven replications, with three plants per replication. The treatments were the intensities of thinning characterized by the number of fruit left on the branch terminal panicles, T1: 3 fruits / branch; T2: 6 fruits / branch; T3: 9 fruit / branch; T4: 12 fruits / branch; T5: no thinning (control). The evaluations were colorimetric through the ripe fruits, physical and chemical analysis for each of the varieties. Depending of analyzed characteristics the 'Mauritius' has qualities similar to 'Bengal', being a promising material for lychee growing regions. The Mauritius variety has characteristics closely resembling those of 'Bengal'. Besides that Mauritius was the variety that had more influence, thinning, and fruit quality. Acidity (direct titration) was the variable that was most influenced by the thinning of fruits. However thinning had little influence on fruit quality
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Spohrer, Klaus. "The water regime in a lychee orchard of Northern Thailand : identification of model parameters for water balance modelling /." Stuttgart : Univ. Hohenheim, Inst. für Bodenkunde und Standortlehre, 2007. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016421055&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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García, Pérez Eliseo [UNESP]. "Influência de temperatura, anelamento e reguladores de crescimento, sobre a floração e frutificação de lichieiras." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/105175.

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Made available in DSpace on 2014-06-11T19:33:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-06-12Bitstream added on 2014-06-13T20:45:30Z : No. of bitstreams: 1 garciaperez_e_dr_jabo.pdf: 647726 bytes, checksum: eb455af0dd5ba755145b951a0ea137bd (MD5)
Colegio de Postgraduados de Mexico
Consejo Nacional de Ciencia y Tecnología (CONACYT)
O trabalho foi realizado nas Fazendas Santo Antônio e Jurupema, localizadas no Município de Taquaritinga -SP, Brasil, de abril de 2003 a dezembro de 2005, com o objetivo de estudar a influência da temperatura, anelamento e alguns reguladores de crescimento sobre a floração e a produção de lichieiras cultivar Bengal. Foram registrados dados de produção e temperaturas, precipitação e horas acumuladas com temperaturas inferiores a 15,5° C, e correlacionados para entender o grau de interação. Foi realizado anelamento de ramos de diferentes diâmetros, para conhecer o seu efeito sobre a floração e a frutificação. O anelamento não teve efeito sobre a brotação vegetativa após a colheita, mas as maiores concentrações de PBZ reduziram significativamente a brotação vegetativa e o comprimento dos ramos. O uso de ANA provocou queimaduras nas inflorescências e queda de frutos, mas os que permaneceram, não apresentaram alterações nas características físicas e nos sólidos solúveis. Não foi observado efeito significativo da aplicação de GA3, sobre a fixação de frutos. A queda de frutos, a partir de uma massa de 2 g até a colheita, é de 50%.
The work was carried through on Santo Antonio and Jurupema farms, located in Taquaritinga, São Paulo State, Brazil, in the period from April 2003 to December 2005, with the objective to study the influence of temperature, girdling and some growth regulators on the flowering, fruiting and production of lychee trees cultivar Bengal. It was registered production data and temperatures, precipitation and accumulated hours with inferior temperatures to 15.5°C, and correlated to understand the interaction degree. Girdling of branches of different diameters was carried through, to know its effect on the flowering and fruiting. The girdling didn't have effect on the vegetative flushes after the harvest, but the biggest concentrations of PBZ reduce the vegetative flushes and the length of shoots significantly. Spray with NAA provoked burns in the panicles and drop of fruits, but the ones that had remained did not have present alterations in the characteristics and in the soluble solids. Beneficial effect of the application of GA3 on the fruit set was not observed. The drop of fruits, starting from a weight of 2 g to the harvest, is of 50%.
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Rowlings, David William. "Influence of historic land use change on the biosphere-atmosphere-exchange of C and N trace gases in the humid, subtropical region of Queensland." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/39257/1/David_Rowlings_Thesis.pdf.

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Increases in atmospheric concentrations of the greenhouse gases (GHGs) carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) due to human activities have been linked to climate change. GHG emissions from land use change and agriculture have been identified as significant contributors to both Australia’s and the global GHG budget. This is expected to increase over the coming decades as rates of agriculture intensification and land use change accelerate to support population growth and food production. Limited data exists on CO2, CH4 and N2O trace gas fluxes from subtropical or tropical soils and land uses. To develop effective mitigation strategies a full global warming potential (GWP) accounting methodology is required that includes emissions of the three primary greenhouse gases. Mitigation strategies that focus on one gas only can inadvertently increase emissions of another. For this reason, detailed inventories of GHGs from soils and vegetation under individual land uses are urgently required for subtropical Australia. This study aimed to quantify GHG emissions over two consecutive years from three major land uses; a well-established, unfertilized subtropical grass-legume pasture, a 30 year (lychee) orchard and a remnant subtropical Gallery rainforest, all located near Mooloolah, Queensland. GHG fluxes were measured using a combination of high resolution automated sampling, coarser spatial manual sampling and laboratory incubations. Comparison between the land uses revealed that land use change can have a substantial impact on the GWP on a landscape long after the deforestation event. The conversion of rainforest to agricultural land resulted in as much as a 17 fold increase in GWP, from 251 kg CO2 eq. ha-1 yr-1 in the rainforest to 889 kg CO2 eq. ha-1 yr-1 in the pasture to 2538 kg CO2 eq. ha-1 yr-1 in the lychee plantation. This increase resulted from altered N cycling and a reduction in the aerobic capacity of the soil in the pasture and lychee systems, enhancing denitrification and nitrification events, and reducing atmospheric CH4 uptake in the soil. High infiltration, drainage and subsequent soil aeration under the rainforest limited N2O loss, as well as promoting CH4 uptake of 11.2 g CH4-C ha-1 day-1. This was among the highest reported for rainforest systems, indicating that aerated subtropical rainforests can act as substantial sink of CH4. Interannual climatic variation resulted in significantly higher N2O emission from the pasture during 2008 (5.7 g N2O-N ha day) compared to 2007 (3.9 g N2O-N ha day), despite receiving nearly 500 mm less rainfall. Nitrous oxide emissions from the pasture were highest during the summer months and were highly episodic, related more to the magnitude and distribution of rain events rather than soil moisture alone. Mean N2O emissions from the lychee plantation increased from an average of 4.0 g N2O-N ha-1 day-1, to 19.8 g N2O-N ha-1 day-1 following a split application of N fertilizer (560 kg N ha-1, equivalent to 1 kg N tree-1). The timing of the split application was found to be critical to N2O emissions, with over twice as much lost following an application in spring (emission factor (EF): 1.79%) compared to autumn (EF: 0.91%). This was attributed to the hot and moist climatic conditions and a reduction in plant N uptake during the spring creating conditions conducive to N2O loss. These findings demonstrate that land use change in subtropical Australia can be a significant source of GHGs. Moreover, the study shows that modifying the timing of fertilizer application can be an efficient way of reducing GHG emissions from subtropical horticulture.
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Books on the topic "Lychee"

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Kumar, Manoj, Vivek Kumar, Ram Prasad, and Ajit Varma, eds. The Lychee Biotechnology. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3644-6.

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Kumar, Manoj, Vivek Kumar, Neera Bhalla-Sarin, and Ajit Varma, eds. Lychee Disease Management. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4247-8.

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International Symposium on Lychee, Longan, Rambutan and other Sapindaceae Plants (2nd 2003 Chiang Mai, Thailand). Proceedings of the IInd International Symposium on Lychee, Longan, Rambutan and other Sapindaceae Plants. Edited by Chomchallow N, Sukvibul N, Anupunt P, and International Society for Horticultural Science. Section Tropical and Subtropical Fruits. Leuven, Belgium: International Society for Horticultural Science, 2005.

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Radiographie du peuple lycéen: Pour changer le lycée. Issy-les-Moulineaux: ESF, 2005.

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Guy, Baille, and Leroy Serge, eds. Orthographe: Lycées professionnels. [Paris]: Nathan, 1986.

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Bayon. Le lycéen: Roman. Paris: Grasset, 2000.

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Lycéen sous l'Occupation. Bordeaux: Les Dossiers d'Aquitaine, 2012.

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Guide du lycée. Toulouse: Editions MILAN, 1996.

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Pierre, Compain-Mefray, ed. Méthode active de dessin technique: Lycées professionnels, lycées techniques, promotion. Paris: A. Casteilla, 1992.

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-, Poquet Elise 19, ed. Lycée Dracula. Toulouse: Ed. Milan, 2004.

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Book chapters on the topic "Lychee"

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Jiang, Yueming, Haiyan Gao, and Mingwei Zhang. "Lychee (Litchi)." In Tropical and Subtropical Fruits, 241–58. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781118324097.ch13.

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Koul, Bhupendra, and Pooja Taak. "Lychee (Litchi chinensis Sonn.): Pre- and Post-harvest Disease Management." In Lychee Disease Management, 1–26. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4247-8_1.

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Pandey, Shanker Kumar, Awadh Kishore Roy, Shyam Chandra Roy Chandel, Anuj Rani, Rashmi Singh, and Ravi Shankar Mishra. "Lychee Diseases and its Viable Control." In Lychee Disease Management, 167–80. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4247-8_10.

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Ghosh, Moushumi. "Lychee Juice and Pulp Extracts as Potential Components for Production of Extracellular Phosphate-Binding Biopolymer from Acinetobacter haemolyticus." In Lychee Disease Management, 181–90. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4247-8_11.

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Soni, Renu, and Shachi Agrawal. "Litchi chinensis: Taxonomy, Botany and Its Cultivars." In Lychee Disease Management, 191–215. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4247-8_12.

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Kumar, Vivek, Manoj Kumar, Shivesh Sharma, Ajit Varma, and Neera Bhalla-Sarin. "Procedural Insights on In Vitro Propagation of Litchi chinensis (Sonn.)." In Lychee Disease Management, 217–35. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4247-8_13.

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Anjum, Jasra, Rafiq Lone, and Khursheed Ahmad Wani. "Lychee (Litchi chinensis): Biochemistry, Panacea, and Nutritional Value." In Lychee Disease Management, 237–56. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4247-8_14.

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Chaudhary, Shiwani, Manoj Kumar, and M. L. Aggarwal. "Litchi Deterioration in India." In Lychee Disease Management, 257–64. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4247-8_15.

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Thakur, Nitika. "Integrated Approach for the Management of Differential Patterns of Diseases and Pest Incidence in Lychee." In Lychee Disease Management, 265–77. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4247-8_16.

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Vishwakarma, Kanchan, Neha Upadhyay, Nitin Kumar, Rishi Verma, Jaspreet Singh, Pankaj Verma, Mitali Mishra, et al. "Microbial Interactions in Litchi Rhizosphere." In Lychee Disease Management, 27–44. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4247-8_2.

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Conference papers on the topic "Lychee"

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Mahmud, Md Prince, Md Alams Ali, Sima Akter, and Md Hasan Imam Bijoy. "Lychee Tree Disease Classification and Prediction using Transfer Learning." In 2022 13th International Conference on Computing Communication and Networking Technologies (ICCCNT). IEEE, 2022. http://dx.doi.org/10.1109/icccnt54827.2022.9984286.

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Wang, J. F., S. T. Bao, S. S. Chen, and Y. F. Wang. "FT-NIR spectroscopy technique based analysis and prediction on soil nutrient content of Lychee orchard: a case study in Zhongluotan of Guangzhou, South China." In Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Monitoring and Assessment of Natural Resources and Environments, edited by Lin Liu, Xia Li, Kai Liu, Xinchang Zhang, and Yong Lao. SPIE, 2008. http://dx.doi.org/10.1117/12.813028.

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Vijendra, Kavitha C., Gagan Deep, Gail Harrison, Michael Glode, Chapla Agarwal, and Rajesh Agarwal. "Abstract 3695: Oligonol, a novel lychee fruit-derived low-molecular weight procyanidin extract, inhibits angiogenesis: Implications for its use as angiopreventive agent against cancer." In Proceedings: AACR 102nd Annual Meeting 2011‐‐ Apr 2‐6, 2011; Orlando, FL. American Association for Cancer Research, 2011. http://dx.doi.org/10.1158/1538-7445.am2011-3695.

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Mosina, Natalia, Abderrazak Belkharraz, and Dmitriy Chebanov. "LYCEE: A pathway for high school students towards STEM majors." In 2012 IEEE 2nd Integrated STEM Education Conference (ISEC). IEEE, 2012. http://dx.doi.org/10.1109/isecon.2012.6204176.

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ALMEIDA, Emanuele De, and Rafaela Sebrão De ROSE. "Análise de correlato do Ginásio Lycée Blaise Pascal." In InovAção UNOPAR 2019. Recife, Brazil: Even3, 2019. http://dx.doi.org/10.29327/17976.1-22.

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BOREL, Jean-Pierre. "Professorat des écoles : quelle pluridisciplinarité dans le métier, quelle pluridisciplinarité dans la formation ?" In Les journées de l'interdisciplinarité 2022. Limoges: Université de Limoges, 2022. http://dx.doi.org/10.25965/lji.678.

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L’université de Limoges a ouvert en septembre 2021, dans le cadre d’un programme national, une formation, portée par la Faculté des Sciences et Techniques et en collaboration avec le lycée Turgot de Limoges, pour une meilleure formation des futurs professeurs des écoles. Il s’agit d’un métier qui, en France, touche à toutes les disciplines. Cette nouvelle formation réunit toutes les disciplines liées au métier. Il s’agit là d’un réel progrès par rapport à des licences par essence mono disciplinaires. Cependant, il y a encore du chemin à parcourir pour arriver à un caractère réellement pluridisciplinaire de la formation, et du métier !
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