摘要
榨菜胞质雄性不育系（简称ＣＭＳ）群体中，发现有两种类型的雄蕊：无正常花药结构，整个雄蕊呈丝状或瓣状；有花药结构、花药瘦弱、花粉无生活力。雄性器官分别在两个时期败育：孢子体时期和配子体时期，雄性不育率和不育度均达到１００％。此外，雄性不育性世代稳定。ＣＭＳ植株中大约９０％具有正常雄蕊，人工授粉后平均每角果结籽１４６粒，超过其相应保持系１２粒；不育系中１０％的植株雌蕊部分不育；不育系在自然授粉情况下，ＣＭＳ单株种子产量可达７２ｇ，比保持系高１６６％。同时ＣＭＳ具有良好的经济性状，接近其保持系Ｔ８４－６６。
Two types of stamen were observed in CMS of tuber mustard: stamen without anther structure and stamen with slim and degenerative anther Abortion of male-organs were at two stages: sporophytic and gametic abortion Both the rate and the degree of male-sterility for CMS line reached 100% In addition, its male-sterility was generationally stable Approximately 90 percent of CMS plants possessed normal pistil with average 146 seeds per silique after artificial pollination, which was 12 seeds per silique higher than that of maintainer line Whereas, 10 percent of CMS plants procreated female partial sterility Under natural pollination, seed yield per plant of CMS line amounted to 72g, 166 percent higher than that of maintainer line Moreover, CMS line was featured by superior economic characters, nearly equal to tuber mustard Tsatsai T84-66 It held great promising for its utilization in F1 seed production
出处
《浙江农业学报》
CSCD
1997年第3期149-154,共6页
Acta Agriculturae Zhejiangensis
关键词
榨菜
杂种优势
经济性状
开发利用
Brassica juncea Coss tumida
cytoplasmic male-sterile line
pistil
economic character
