糜子化学杀雄剂筛选及杀雄效果研究初报.pdfVIP

虿北意业掌报 2011，20(8)：77—81 Acta Boreali—occidentalisSinica Agriculturae 糜子化学杀雄剂筛选及杀雄效果研究初报 张小东，冯佰利，王鹏科，赵如浪，屈 洋，于澄宇，柴 岩 (西北农林科技大学农学院，陕西杨凌712100) 摘 要：以榆糜2号为材料，研究22种药剂对糜子的杀雄效应，为糜子化杀剂筛选奠定基础。结果表明，不 同杀雄剂的杀雄效果有差异，在参试的22种药剂中，豆草特和SQ-1诱导雄性不育率均超过95％；当剂量增 大时，雄性不育率与杂交率升高。但自然授粉结实率降低；SQ-1在不同剂量处理条件下，自然授粉结实率差异 较大，豆草特较小；喷施SQ-1后，糜子农艺性状改变不明显，而豆草特对糜子的生长影响较大。 关键词：除草剂；糜子；化学杀雄剂；雄性不育 中图分类号：$336 文献标志码：A 文章编号：1004-1389(2011)08-0077—05 forMilletChemical Screening HybridizingAgents andTheirEffectonMale Sterility ZHANG Baili，WANG Xiaodong，FENG Pengke，ZHAORulang， QU andCHAIYan Yang，YUChengyu of A＆F Shaanxi712100，China) (CollegeAgriculture．NorthwestUniversity。Yangling of22 on male ofYumi2 was toseta Abstract：Theeffect chemical induced drugs sterility compared basefortheselectionofmilletchemical resultsshowedthatdifferentchemical hybridizingagent．The haddifferenteffects．Ofthe22testedchemical rateinducedimazetha— sterility by drugs drugs，male and werebothover95％．Withtheincreaseof rateand rate pyr SQ-1 dosage，malesterility crossing increased。but rateofnatural decreased；Theratesofnatural seed—setting pollination seed—setting pol— linationin andlow treatmentof had differences，butthoseof was high dosage SQ-1 large imazethapyr