The effects of temperature on the bagged self seed and the abortive pollen types of indica TGMS rice line 2301s were studied by sowing on different dates in 1999 and 2000.

1999年和2000年分期播栽试验，研究了温度对籼型温敏核不育系2301s自交不育度和花粉败育类型的影响。

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The affinity of self-incompatibility in the mustard family affects the purity of hybrid seed and the propagation coefficient of stock plant.

十字花科自交不亲和性的大小关系到杂交制种的纯度和原种的繁殖系数。

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Both female and paternal parents of the new variety of Luxing Chinese cabbage are self-seed from self-cross plants of imported variety with superior quality.

绿星青菜的父母本是利用国外引进的优良品种经多代自交选育的高代自交系。

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He maintains his connection with Zambia as the Vice President of Self Empowerment through Education (SEED).

WHITEHOUSE: Herman schaffer | The White House

It goes without saying that resources are limited in our recession-ravaged economies ... but disinvesting in seed corn is obviously self-defeating.

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The PCOM was born in the late 1930s as a desperate act of self-defense by West Texas cotton farmers, who at the time could hardly give their seed away.

NPR: Texas Cotton: 'Farmer Profits at Every Step'