Effects of Temperature on Seed Sterility of Whangkeumbae (Pyrus pyrifolia) pear in Greenhouse
Effects of temperature on phenophase, pollen germination and seed sterility, morphological change of ovule and embryo sac of Whangkeumbae pear planted in greenhouse were investigated. Results showed that the developmental process of budding, bloom and fruit of Whangkeumbae pear were accelerated by high temperature (above 20 °C) in series in greenhouse. Pollen germination and growth of pollen tube were both well after pollination 96h, while continuinging to be in the condition of high temperature, the developmental process of embryo sac of Whangkeumbae pear would be postponed seriously. There would be 64.6 ％ embryo sac only developed to single-nucleus or twonucleus period, and they could not be fertilized. Therefore, this would result in seed sterility of Whangkeumbae pear.
greenhouse Pyrus pyrifolia Nakai cv. Whangkeumbae seed sterility embryo sac microscopic observation
Weidong Bian Jingtao Zhu Guojun Zhang Zhaosen Xie
Hebei Normal University of Science & Technology
国际会议
The 2nd Conference on Horticulture Science and Technology(第二届园艺科学与技术学术会议 CHST 2010)
北京
英文
181-184
2010-12-18（万方平台首次上网日期，不代表论文的发表时间）