咪唑乙烟酸对小麦品种衡观35挑旗期杀雄效果及农艺性状的影响  

Performance of Male Sterile Rate and Agronomic Traits Induced by Imazethapyr in Wheat of Hengguan 35 at Flagging Stage

作　　者：赵明辉 李会敏 乔文臣 付庆云 张香菊 赵凤梧 Daniela Benedikova Pavol Hauptvogel Edita Gregova 

机构地区：[1]河北省农作物抗旱研究重点实验室,河北衡水053000 [2]Plant Production Research Center,Piestany,92168,Slovakia

出　　处：《作物杂志》2014年第5期29-32,共4页Crops

基　　金：科技部国际合作专项(2012DFG32030);国家“863”计划项目(2011AA10A106);河北省现代农业产业技术体系小麦创新团队(2013-2018);河北省农林科学院旱作农业研究所创新基金

摘　　要：在小麦挑旗期（Feekes 9.0）分别以10%咪唑乙烟酸125.6mL/hm^2、185.9mL/hm^2和251.3mL/hm^2的用量对小麦进行喷雾,结果表明：（1）同对照相比,咪唑乙烟酸对小麦株高、穗长、小穗数及穗粒数影响严重,除125.6mL/hm^2的用量对小穗数影响差异不显著外,其他性状均达到极显著水平;（2）对植株各茎节进行解剖,降秆主要发生在第3-5节,各处理第1-2节间与对照差异不显著,其余各节间均达到极显著水平;（3）抽穗期、开花期较对照晚2d;（4）发现咪唑乙烟酸新功能,在小麦挑旗期（Feekes 9.0）喷雾后能诱导95.6%-99.1%的雄性不育,有可能作为一种新的小麦雄性不育诱导剂,应用于小麦杂种优势的研究。It was carried out that imazethapyr sprayed at wheat flagging stage（ Feekes 9. 0） with doses of125. 6mL /hm^2、185. 9mL/hm^2 and 251. 3mL /hm^2,respectively,on a genotype Hengguan 35 of winter wheat. Results showed：（ 1） excepting 125. 6mL /hm^2 no effect to spikelets,other characteristics like plant height,spike length,kernels /spike were affected significantly（ at 0. 01 significant level） by the treatments compared with control.（2） there were no differences in lengths of internode at 1st and 2nd,but among 3rd,4th and 5th ones the differentces were all significant at 0. 01 level.（3） both heading date and flowering date were 2 days later than the control.（4） a new function of imazethapyr was found that 95. 6%- 99. 1% more male sterility could be induced after spraying at flagging stage and it is possible to use it for wheat heterosis research as a new kind of chemical hybridizing agent.

关 键 词：咪唑乙烟酸 小麦 挑旗期 农艺性状 雄性不育 

分 类 号：S512.1[农业科学—作物学]