“BAU—2”诱导普通小麦雄性不育的研究 Ⅱ.化学杀雄技术  

Studies on BAU—2 Induced Male Sterility in Winter Wheat(T.aestivum L.)

作　　者：徐如强[1] 黄铁城[1] 张爱民[1] 

机构地区：[1]北京农业大学农学系,北京100094

出　　处：《中国农业大学学报》1993年第S2期9-18,共10页Journal of China Agricultural University

摘　　要：本文对新型化学杂交剂 BAU—2的主要化学杀雄技术进行了研究。结果表明:(1)BAU—2的适宜喷药时期为雌雄蕊原基分化至花粉母细胞形成时期,反映在植株外部形态上为基部第二、三节间伸长期。(2)适宜喷药剂量为1～2kg·hm^(-2)。但不同品种对药剂的反应程度不同,针对某一具体品种而言,其最佳喷药剂量的范围却较窄。(3)BAU—2的化学杀雄效果取决于品种、施药量和施药时期,且三者之间存在显著的互作效应。但仅就施药剂量、浓度和药液量三因素而言,则取决于施药剂量。BAU-2,a New chemical hybridizing agent,induced male sterile application in production of hybrid winter wheat had been studied.The results had showed that(1).It was found that primardial dif- ferentiation of pistil and stamen to the formation of pollen mother cell was approriate developmental stage for spraying BAU-2,this was the stage of elongation of the second and third internode counted from the base.(2)1～2 kg/hm^2 was BAU-2 approriate spraying dose rate,but it was relatively narrow for a given cultivar.(3)The performance of BAU-2 induced male sterility depended on variety,dose rate and stage of spraying,and there was a significant interaction among the three factors.However,dose rate was more im- portant than concentration and liquid volum of spraying.

关 键 词：杂交小麦 化学杀雄 

分 类 号：S[农业科学]