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。
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。
The process of clamping and self-locking clip of seed-filling has been studied, and built a model on the seed-filling speed.
研究了夹持自锁取种机构的充种过程，建立了充种速度模型；
A self-fastening method is introduced by which a cleat-shaped seed crystal is fixed in the swallow-tailed groove.
本文介绍一种在提拉法中使用的晶种劈形自紧固方法。
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。
The seed setting rate has no obvious difference between autotriploid and autotetraploid, but it will rise with the increase of the self-bred generations.
③同源三倍体和同源四倍体之间的自交结实率没有明显的区别，结实率会随着自交代数的增加而上升。
The seed setting rate has no obvious difference between autotriploid and autotetraploid, but it will rise with the increase of the self-bred generations.
③同源三倍体和同源四倍体之间的自交结实率没有明显的区别，结实率会随着自交代数的增加而上升。
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