Research on the Fertility of Common Apricot Pollen in Xinjiang

[Objective] The pollen viability,germination rate and the rate of fruit-setting of apricot in Xinjiang after its pollination was tested.[Method] The pollen viability and its germination rate of nine local apricot cultivars were measured with I-Ki staining and TTC staining for the study on the pollen fertility.[Result] The results showed that the pollen viability was generally more than 60%,which among and most of cultivars was in the range of 65% to 70% and few was in the range higher than 70% and less than 65%.There was a difference in the rate of fruit-setting from straight or reciprocal cross of apricot,the high rater of fruit-setting from straight cross was showed in the combination: Baixing × Akeyageleke,Baixing × Mantouyvlvke,Kuchexiaobaixing × Muzijianali,Kuchexiaobaixing × Akeyageleke,Akeqiaolifan × Muzijianali,Akeqiaolifan × Akeyageleke,Akeqiaolifan × Luntaixing,Zhiganxing × Akeyageleke,Zhiganxing × Mantouyuchangke,Jianali 2 × Akeyageleke and others was low;the high rate of fruit-setting from reciprocal cross appeared in the combination: Baixing × Mantouyvlvke and Zhiganxing × Ekeyageleke,among which the pollination could be done each other.The rate of seed-setting from straight cross of Ekeqiaolifan × Muzijianali and Zhiganxing × Mantouyvlvke was high but from the reciprocal cross,zero;showing the unilateral incompatibility between the both.[Conclusion] It was significant in the improvement of apricot to make suitable cross-combination.