查询词典 heterosis

Such as rice, wheat and other self-pollinating crops, the general crossbreeding between the two species often used method of cross-pollinated crops such as corn is to use more ways of utilization of heterosis.

如稻、麦等自花授粉作物，一般常采用品种间杂交育种方法，玉米等异花授粉作物则多采用杂种优势利用的途径。

Using genetic distance as independent variable and heterosis as depend variable, we carried out regressing analyses.

以遗传距离为自变量，杂种优势为依变量，进行回归分析。

It is evident that the average heterosis of amylose content was positive in effect, and the heredity of amylose content trended toward high value parent.

杂交组合的直链淀粉含量表现出较明显的正向平均优势，倾高亲遗传。

Castor-oil plant ; hereditary improvement ; heterosis ; oil ; comprehensive utilization

蓖麻；遗传改良；杂种优势；油脂；综合利用

This paper studied relative characters and correlation of three ear leaf for 15 high combining inbred lines for select better inbred lines.studied that parents selected and mated,predicted heterosis.

通过对15个高配合力亲本自交系及其组配的8个杂交种棒三叶有关性状及相关性的研究，揭示优良自交系的特征，探索亲本的搭配，予测杂种优势的大小。

Japonica and 1.3 cm of U.pinnatifida which showed heterosis in growth during the temporarily sea cultivaton. The phenotypic character of F_1 juvenile sporophyte of L.japonica♀×U.pinnatifida♂was similar to that of the female parent, namely, L.japonica which generated no rudiments of the pinnate lobations.

海带♀×裙带菜♂杂交组合的受精率为20-33%，在暂养期间F_1幼孢子体达到2.2 cm，大于海带、裙带菜幼孢子体的1.8 cm和1.1 cm，表现出生长优势；F_1幼孢子体表现出母本海带的性状，无裂叶缺刻雏形的形成。

It is feasible to forecast the heterosis of Small Tail Han Sheep crossed with imported meat sheep by genetic polymorphism of microsatellite DNA and it will have an important value for sheep breeding in future.

利用微卫星DNA 多态性预测引进肉用绵羊品种与小尾寒羊的杂种优势是可行的，将对今后绵羊育种具有重要的应用价值。

By using gene-family-specific primers, we found MADS-box, Ser/Thr protein kinase showed significantly differential expression patterns between reciprocal cross-fertilized kernels and their parents, indicating that MADS-box and ser/thr protein kinase may also play important roles in wheat heterosis.

利用家族特异性引物的展示结果表明，MADS-box家族基因在小麦杂交当代种子与亲本之间存在明显的基因表达差异，且强优势的杂交组合与弱优势组合之间表现差异的cDNA比例差异显著；Ser/Thr蛋白激酶的差异相对较小，表明MADS-box和Ser/Thr蛋白激酶与小麦杂种优势形成有重要关系。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。