张钟;黄建;殷晓;李新岗;刘廷俊;

• 1:西北农林科技大学林学院·国家林业局枣工程技术研究中心
• 2:宁夏葡萄花卉产业发展局

摘要(Abstract)：

【目的】研究枣树自然授粉杂交后代的果实性状变异。【方法】在宁夏贺兰县暖泉农场建立‘临猗梨枣’园,按照父母本配置比例为10∶1,在枣园中部选择20株‘梨枣’(♂)嫁接‘冬枣’(♀),自然授粉杂交,收集冬枣种子播种获得F1代;从中优选64株引种到试验大棚内,观察其果实性状,并用10个SSR位点进行杂交后代鉴别。【结果】贺兰县自然授粉‘冬枣’的含仁率为85.0%,明显高于其他地区;鉴别‘冬枣’ב梨枣’的杂交后代57个,未发现‘冬枣’自交后代;56.9%的后代果实形状多为圆形、扁圆形,果实大小、单果质量为趋低亲变异,可溶性固形物含量为趋高亲变异,最终优选出4个综合性状优良的杂交后代。【结论】母本含仁率和自交不亲和是枣树杂交育种的基础,自然授粉杂交后代鉴别是枣树杂交育种的关键;有性杂交能够产生后代果实性状的广泛分离,并实现父母本性状的有效整合。

关键词(KeyWords)： ‘冬枣’;‘临猗梨枣’;自然授粉;杂交后代;果实性状

Abstract:

Keywords:

基金项目(Foundation): 国家“十二五”科技支撑课题(2013BAD20B03);; 陕西省难题招标项目(2013KTZB02-03)

作者(Author): 张钟;黄建;殷晓;李新岗;刘廷俊;

Email:

DOI: 10.13925/j.cnki.gsxb.20140198

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