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Studies on Microspore Culture and Doubling Efficiency in Spring-Planted Brassica napus
Author(s): XING Xiao-rong, DU De-zhi, LI Xiu-ping
Pages: 114-
118
Year: 2007
Issue:
1
Journal: ACTA AGRICULTURAE BOREALI-OCCIDENTALIS SINICA
Keyword: 春性甘蓝型油菜; 小孢子培养; 出胚率;
Abstract: 对一批春性甘蓝型油菜(Brassica napus)杂种F1及其亲本进行小孢子培养的结果表明,不同组合(基因型)出胚率差异比较大,2006年22份材料(基因型)中有21份出胚,其中40.91%的材料每蕾出胚数在5个以上,31.82%的材料每蕾出胚数在10个以上;杂交组合的出胚率大部分高于其亲本,主枝的产胚率绝大部分都高于其分枝;秋水仙碱不同处理中以0.6 g/L浓度处理5.0 h和3.4 g/L浓度处理1.5 h,植株成活率和加倍率最高;经秋水仙碱加倍后可育的植株大部分花粉活力较高,结实指数较高;而半可育的植株花粉活力低,并有50%的植株结实指数低于1.
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