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《Hubei Agricultural Sciences》 2016-09
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Effects of Low Temperature on Pollen Vitality and Fruit Setting Rate of Kernelapricot in Blooming Period

CAI Qian;SUN Zhan-xiang;ZHENG Jia-ming;BAI Wei;BAI Yi-guang;Tillage and Cultivation Research Institute , Engineering Research Centre for Dryland and Water-Efficient Farming of Liaoning Province;College of Land and Environment, Shenyang Agricultural University;Institute of Floriculture, Liaoning Academy of Agricultural Sciences;  
On a ccount of yields instabilit y problems of the kernel-apricot tree in the west of Liaoning province, taking Chaoren apricot as test materials,the pollens of Baiyubian apricot, Longwangmao apricot,Siberian apricot,Northeast apricot were chosen to pollinate for Chaoren apricot,so as to study the effects of low temperature on pollen vitality and fruit setting rate of kernel-apricot in blooming period. Results showed that, the pollen germination rate of Siberian apricot and Northeast apricot was significantly higher than that of Baiyubian apricot and Longwangmao apricot under low temperature; The pollen of Siberian apricot and Northeast apricot germinated in stigma of Chaoren apricot, the pollen tube number extending to the ovary was obviously higher than Baiyubian apricot and Longwangmao apricot; The fruit setting rate of Chaoren apricot pollinated by Siberian apricot was higher than that pollinated by Northeast apricot, and they were obviously high than the other two pollination varieties. But Siberian apricot blooming period didn 't meet with Chaoren apricot, so Northeast apricot have the characteristics of strong drought resistance,high affinity, and was suitable as the pollination tree of Chaoren apricot in blooming period of low temperature.
【Fund】: 农业部公益性行业(农业)科研专项(201103001);; 国家自然科学基金面上项目(31170407);; 辽宁省科技攻关计划项目(2015103018);; “十二五”国家科技支撑计划项目(2011BAD09B02)
【CateGory Index】: S662.2
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