烯效唑干粉拌种降低小麦不育系株高的效应  

Effect of Decreasing Plant Height on Common Wheat Male Sterile Lines by Uniconazole Powder Seed Dressing

作　　者：黄康龙[1] 赵颖[1] 莫俊杰[1] 梁杰恩[1] 黄华彬[1] 刘丽霞[1] 周鸿凯[1] 何觉民[1] 

机构地区：[1]广东海洋大学农业生物技术研究所,广东湛江524088

出　　处：《麦类作物学报》2010年第4期634-637,共4页Journal of Triticeae Crops

基　　金：广东海洋大学创新资金资助项目

摘　　要：为了加大杂交小麦制种时的父母本株高差异,获得良好的制种效果,用不同剂量的烯效唑干粉和待播不育系种子均匀混合,以探索烯效唑干粉拌种的适宜剂量和不同不育系对烯效唑的敏感性。结果表明,烯效唑干粉拌种可以显著降低小麦不育系的株高,30 mg.kg-1是多数供试不育系的适宜拌种剂量;不同不育系对烯效唑的敏感性有一定差异,在烯效唑用量为20 mg.kg-1时,各不育系的株高降低率差异不显著;在烯效唑用量为30 mg.kg-1和40 mg.kg-1时,各不育系的株高降低率以268S为最高,极显著高于海大S-1和海大S-2,而与2110-2-5-2-5S无显著差异。Since the majority of wheat varieties were insensitive to gibberellin,so when relative high MS lines and gibberellin-insensitive restorers were used in hybrid seed production,the way that increasing the plant height difference beyond restorer gibberellin spraying must be taken,and to lower the height of MS will be a desirable option.In order to explore appropriate doses of uniconazole and uniconazole sensitivity of different MS lines in powder seed dressing,the different doses of uniconazole was used in thi...

关 键 词：小麦不育系 烯效唑 干粉拌种 株高 

分 类 号：S512.1[农业科学—作物学]