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对双低杂交油菜黔油 12号的母本 SAB- 3进行植物学特征及核不育系的可育株和不育株的开花期、花器官特性的对比研究。结果表明 :(1) SAB- 3根系发达 ,叶色深绿 ,丰产性好 ,抗性强 ,营养生长期较长 ;(2 ) SAB- 3的可育株花蕾、花瓣和雄蕊均比不育株的长、大 ,有利于初花前后识别和及时拔除可育株 ;(3)可育株比不育株开花早 3～ 14d,平均早 5d,拔除可育株安排在 SAB- 3群体开花约 10 %时开始 ,有利于 10 d内分 2～ 3次将可育株彻底拔除。
A comparative study on the botanical characteristics of female parent SAB-3 of double-low rapeseed rapeseed Qianyou 12 and the characteristics of flowering and floral organs of the sterile and sterile lines of the male sterile line was conducted. The results showed that: (1) SAB-3 developed root system with dark green leaf color, good yield, strong resistance and longer vegetative growth period. (2) The flower buds, petals and stamens of SAB- (3) The fertile plants grew 3 to 14 days earlier than the sterile plants, averagely 5 days earlier, and the fertile plants were planted to bloom in the SAB-3 population About 10% began, is conducive to 10 d within 2 to 3 times the fertile plant completely removed.