抗寒西伯利亚杏花粉特性及其相关分析
Pollen Characteristics and Correlation of Armeniaca sibirica with Cold-resistance

研究内蒙古居群抗寒西伯利亚杏花粉量和花粉萌发率的分布特征及其相关的因素，为生产上授粉树的合理选择提供参考依据。以12个种源同一树龄的178株西伯利亚杏为试验材料，研究其花粉量和花粉萌发率的分布特征。通过方差分析和相关分析对不同花色、花大小、完全花比率、长势与花粉量、花粉萌发率之间的相关性进行分析，并通过自交试验和荧光观察探讨花粉萌发率高低与花粉管在花柱内萌发长度的相关性。结果发现，花粉量和花粉萌发率的分布均呈偏态分布；检测指标之间无相互影响。从花粉育性上讲，仅34.86%的单株最适宜做授粉树。
In order to provide references for reasonable selection of pollination tree in production, the distribution characteristics and related factors of the pollen quantity and pollen germination rate of Armeniaca sibirica with cold-resistance in Inner Mongolia were examined. From 12 provenances, 178 individual plants were collected. Variance and correlation analyses were adopted to investigate correlationships among the relative factors, such as flower color, flower size, perfect flower ratio, growth and pollen quantity, and pollen germination rate. Through self-pollination test and fluorescence microscopic observation, the correlation between the different pollen germination rates and the length of pollen tube in the style was researched. The results showed that the distribution of the pollen quantity and pollen germination rate were in skewed distribution. No interactions were observed among the factors tested. Only 34.86% of individual trees were mostly suitable to be used as pollination trees from the view of pollen fertility