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。
A comparison of yield and its components between hybrid rice and conventional rice varieties was made with different seedling quantity and row spacing at transplanting.
比较了在不同插秧量和行距配置方式下杂交稻和常规稻的产量及其构成因素。
With the methods of correlation and regression balance and path coefficient analysis, relationship between rice yield and its components were studied in different rice populations.
采用相关、回归、通径分析等方法研究了不同群体水稻产量及产量构成因素的相互关系。
The growth, early bolting, yield of Angelica sinensis and its content and components of essential oils in the high, middle and low mountain of Guan Shan in Long Xian were discussed.
本文对关山高、中、低山当归的生长、早期抽苔、产量和挥发油含量及其主要成分进行了研究。
The growth, early bolting, yield of Angelica sinensis and its content and components of essential oils in the high, middle and low mountain of Guan Shan in Long Xian were discussed.
本文对关山高、中、低山当归的生长、早期抽苔、产量和挥发油含量及其主要成分进行了研究。
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