Results 11 to 20 of about 5,136 (293)
Determination of Chilling and Heat Requirement of Four Apricot Cultivars of Khorasan Razavi Province
Introduction:Dormancy is one of the most important stages in the life cycle of temperate plants and plants are required to exit from it with supply of chill unit. Flowering is defined with chilling and heat requirement. Owing to low chilling requirement,
zohreh hoshyar +2 more
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Chilling requirement for seed germination and phenological observations on peach cultivars [PDF]
In subtropical climate areas, the models and methods proposed to evaluate the chilling requirement of temperate fruit crops often do not provide satisfactory results, thus calling for the development of alternative techniques.
Américo Wagner Júnior +5 more
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Avaliação da necessidade de frio em pessegueiro Avaliation of chilling requirement in peach [PDF]
A necessidade de frio de seis cultivares de pessegueiro [Prunus persica (L.) Batsch] foi estudada em plantas de um e dois anos, em vasos, submetidas a 150; 300; 450 e 600 horas a 2ºC, e em ramos coletados periodicamente em plantas sob condições de ...
Idemir Citadin +3 more
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Chilling Requirement Studies in Blueberries [PDF]
SUMMARY Two separate studies were initiated in January 1998 on Tifblue' rabbiteye (Vaccinium ashei Reade) and ‘Magnolia’ southern highbush (V. corymbosum L.) blueberry plants that had received > 500 chilling hours (7°C). In each study, the terminal 2 flower buds from both excised stems and paired stems on plants were forced in a greenhouse (17-23°C and
James M. Spiers +2 more
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Chilling Requirement of Pecan [PDF]
`Dodd' pecan seedlings [Carya illinoinensis (Wangenh.) K. Koch] were chilled at 6C for 0 to 1800 hours in 300-hour intervals and percent budbreak and days to budbreak recorded. Chilling duration required for ≥ 50% budbreak was 900 hours.
Michael W. Smith +2 more
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POLLEN DEVELOPMENT AND CHILLING REQUIREMENTS IN APRICOT CULTIVARS [PDF]
Apricot (Prunus armeniaca L.) flowers at the end of the winter but flower bud differentiation occurs the previous summer. During the winter, the flower bud enters dormancy and resumes growth prior to flowering. The time the flower bud remains dormant is genetically and also environmentally controlled and is a major factor in determining the adaptation ...
Julián Lagunas, Carmen +2 more
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CHILLING REQUIREMENTS OF HAZELNUT CULTIVARS [PDF]
Chilling requirements of 44 genotypes of Corylus avellana L. were estimated by cutting shoots in the field at weekly intervals and forcing them in a warm greenhouse for four weeks. The chilling requirements of catkins, female flowers, and leaf buds were assumed to have been met when ...
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The present study aims to generalize cultivar-specific tree phenology responses to winter and spring temperatures and assess the effectiveness of the Tabuenca test and various chill and heat accumulation models in predicting bloom dates for a wide range ...
Pavlina Drogoudi +17 more
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Chilling accumulation pattern analysis of Iran cold regions based on CH models،Utah،CP [PDF]
Chilling accumulation in dormancy period for deciduous fruit tree is of very high importance. Failure to meet this chilling requirement reduces the performance and results in the loss of resources.
Golamabbas Fallah Ghalhari +1 more
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Research on Chilling Requirements and Physiological Mechanisms of Prunus mume
Low temperature plays a vital role in the growth and development of woody plants. In this research, based on the ability of artificial low temperatures to break dormancy, the Utah model was used to determine the chilling requirements (CR) of four early flowering Prunus mume Sieb. et Zucc.
Yuhan Zhang, Kaifeng Ma, Qingwei Li
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