Heterosis of seed yield and its components of 66 crosses, from a diallel cross design of 12 parental varieties of Brassica napus L. were studied.
应用双列杂交设计，研究了遗传来源不同的12个甘蓝型油菜品种间66个双列组合的单株籽粒产量及产量性状的杂种优势。
Among the yield components, decreases in number of panicles per pot and seed setting rate were two main reasons for the yield reduction.
在产量构成因子中，每盆穗数和结实率是影响产量的两个主要因子。
The application of biogas fertilizer can effectively increase the yield of seed cotton and lint cotton and improve their yield components.
沼肥的施用也能有效的提高棉花的籽棉和皮棉的产量及较好的改善其产量构成因素。
Of the yield components, filled grains numbers per panicle showed the most variant extent of effect by IPT gene, followed by panicles per plant, seed set ratio and 1000-grain weight.
IPT基因对产量构成因素的效应变异幅度最大的是穗实粒数，然后依次是单株穗数、结实率和千粒重。
Of the yield components, filled grains numbers per panicle showed the most variant extent of effect by IPT gene, followed by panicles per plant, seed set ratio and 1000-grain weight.
IPT基因对产量构成因素的效应变异幅度最大的是穗实粒数，然后依次是单株穗数、结实率和千粒重。
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