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Self-incompatibility Characteristics of 34 Apricot Cultivars in Xinjiang

查看全文 作　　者：Xiaoli [1]PENG;Kang [1]LIAO;Mansur [1]NASIR;Zhenbin [1]JIANG;Shengli [2]DONG;Runqing [2]DU;Shikui [2]ZHANG 高影响力作者 机构地区：[1]Research Centre for Xinjiang Characteristic Fruit Tree,Xinjiang Agricultural University;[2]Luntai National Fruit Germplasm Resource Garden,Xinjiang Academy of Agricultural Sciences高影响力机构 出　　处：《Agricultural Biotechnology》索引2014年第3卷第6期,共6页高影响力期刊 基　　金：Supported by Science and Technology Project of Xinjiang Uygur Autonomous Region'Research;Demonstration of Utilization Technology of Special Fruit Tree Germplasm Resources in Xinjiang'(201130102-1);Key Discipline Pomology in Xinjiang Uygur Autonomous Region 摘　　要：[Objective] This study aimed to explore the relationship between self-incompatibility strength and characteristics related to pollination and fertilization of different apricot varieties in Xinjiang. [Method] The pollen amount,pollen germination rate,pollen tube growth status and fruiting setting rate by self-pollination of 34 apricot cultivars in Xinjiang were determined,to analyze the self-incompatibility of different apricot cultivars. [Result] The average pollen amount per anther of 34 apricot cultivars was 1 213. 7,and the average pollen germination rate was 46. 0%. There were great differences in the self-incompatibility of different cultivars; most pollen tubes of the cultivars with high self-incompatibility stopped elongating at 1 /3 or 1 /2 part of the styles,and only a few pollen tubes of the cultivars with low self-incompatibility reached the ovary,and the normal fertilization ratio was significantly lower than that in self-compatible cultivars. [Conclusion]Among the 34 apricot cultivars,only 6 cultivars were self-compatible and the others exhibited gametophyte self-incompatibility. In addition,the fruit setting rate by self-pollination was low. 关 键 词：自交不亲和 杏品种 新疆 特性 花粉管生长 自花授粉 花粉萌发率 花粉发芽率
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