【摘要】 通过人工遮光、自然光照、秋播和春播等处理,研究光照和温度对白菜型油菜(Brassica campestris)细胞质雄性不育(CMS)的影响。结果表明,光照对该CMS育性变化没有显著影响;积温和高温的共同作用是该CMS育性变化的主要影响因素。温度积累效应可能主要作用于不育花朵的雄蕊和花药。不同播期,不同的核背景对育性变化无影响,但对转变起始时间和所需天数有一定影响。更多还原

【Abstract】 Environmental effects on the cytoplasmic male-sterility (CMS) of oil seed rape, Brassicacampestris was studied by artificial shading, natural daylight as well as sowing in fall and spring,in Hefei, Anhui province in 1991-1992 crop year. The results indicated that there was on relationbetween the length of daylight and the sterility variation of CMS, both accumulated temperatureand high temperature, which the stamen and anther of sterile flower responded to, played an im-portant role in the sterility variation, and there was no significant effect of different maintainersand sowing stages on the variation.更多还原