Chilling Requirement and Development of Flower Organ for Peach Varities ‘Shuanghongyan’(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Chilling Requirement and Development of Flower Organ for Peach Varities ‘Shuanghongyan’

Author(s):: LI Yanmei; ZHU Peipei; DUAN Yaxing; MA Wenyao; YANG Yingjun; (College of Forestry,Henan University of Science and Technology,Luoyang，Henan 471003）

Abstract:: ‘Shuanghongyan’ and spur ‘Shuanghongyan’ peach were used as test materials,‘Okubo’ peach as control.0-7.2 ℃ model were used to study the chilling requirement.Longitudinal and traverse diameter of blossom bud were detected by stereoscopic microscope.The results showed that the chilling requirement was differet among peach cultivars.The chilling requirement of ‘Shuanghongyan’ and spur ‘Shuanghongyan’ were both 1 000-1 200 hours,while ‘Okubo’ was 800-1 000 hours.Longitudinal and traverse diameters of blossom bud at different stages were also enlarged and reached the maximum.The petal，stamen and pistil primordium had formed before the end of dormancy.

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Last Update: 2017-03-16