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利用化学杀雄剂Sc2053 0.7,0.9,1.1和1.3kg/hm~24种药量,对23个普通小麦品种(系),在幼穗发育的雌雄蕊原基形成期、药隔期和雌雄蕊形成期进行叶面喷施,研究Sc2053诱导对小麦的效应。结果表明,在0.9kg/hm~2和1.1kg/hm~2药量作用下,多数品种幼穗发育的雌雄蕊原基形成期至药隔期雄性不育度为94.6％—100％,平均不育度高达99.3％。不同品种对药剂反应的敏感度有很大差异,可分为敏感型、比较敏感型和迟钝型3种类型。在0.9kg/hm~2—1.3kg/hm~2药量下,未见Sc2053对小麦雌性器官的药害作用,柱头生活力正常,异交正常结实。
Twenty-three common wheat cultivars (lines) were stained with chemical male testosterone Sc2053 at doses of 0.7, 0.9, 1.1 and 1.3 kg / hm ~ During the formation period, foliar application was conducted to study the effect of Sc2053 induction on wheat. The results showed that under the treatment of 0.9kg / hm ~ 2 and 1.1kg / hm ~ 2, the male sterility of the primordial stamens from the formation stage to the interphase of most young cultivars was 94.6% -100% Sterility up to 99.3%. The sensitivity of different varieties of pharmaceutical reactions are very different, can be divided into sensitive, sensitive and slow-type three kinds. Under the dosage of 0.9kg / hm ~ 2-1.3kg / hm ~ 2, no phytotoxicity effect of Sc2053 on female organs of wheat was found, and stigma viability was normal and normal outcrossed.