杂种

The results showed that pingshandahuang, junlianxuesi and junliandabaimaya had greater potential trend, 13 landraces were divided into five primary heterotic groups.

结果表明：屏山大黄、筠连血丝和筠连大白马牙具有较大的利用潜势；13个地方种质可分为5个初级杂种优势群。

Clustering results showed that the clusters were not corresponding to heterotic groups and pedigrees,which suggested that the A-PAGE of seed storage proteins might not be a good method for large-scale analysis of genetic diversity and heterotic grouping in maize germplasm.

利用盐溶蛋白多态性完成的聚类分析结果和自交系系谱及杂种优势群之间没有明显的对应关系，表明储藏蛋白A-PAGE方法对于大规模玉米种质资源的遗传多样性分析和类群划分可能存在局限性。

Huangzaosi inbred lines(Huangzaosi and its derived lines) is recognized as one of five heterotic groups by maize breeding in China. It has characters of high combining ability, ideal plant type, drought and barrent tolerance, wide adaptation and so on.

黄早四种群自交系是我国玉米育种的五大骨干杂种优势类群之一，建立在黄早四及其改良的衍生系基础之上，具有配合力高、株型好、耐旱耐瘠、适应性广等特点。

Study on the genetic characteristic of improved lines which can broad temperate maize genetic basis, found new heterotic patterns, resolve the back and force situation, overcome the obstacle of high and super- high yield breeding, provide the technique guarantee for the sustainable development of Chinese maize production.

对改良系进行遗传研究，拓宽温带玉米的遗传基础，构建新的杂种优势模式，这将解决我国玉米育种徘徊不前的局面，克服玉米高产超高产育种的障碍，为我国玉米生产的可持续发展提供技术保障。

Crosses of the 13(15) crosses with higher protein content in kernel composed by parents from different heterotic groups, so the inbreds with high protein content and high combining ability from different heterotic groups was the genetic basis for making high protein crosses.

在子粒粗蛋白质含量相对较高的13(15)个组合中，92.3%(80%)组合的双亲来源于不同的杂优类群；因此，来自不同杂种优势类群的高蛋白、高配合力自交系是组配蛋白质含量较高组合的基础。

Heterosis is based on the heterozygosity of heterozygotic genotypes.

育种实践表明，杂种优势的遗传基础是杂交种基因型的杂合性。

RAPD technique is useful for the identification of hybrid individuals and analysis of heterozygous loci.

RAPD技术标记对杂种个体的鉴定、位点纯合性研究十分有用。

The experiment aimed to explore the inheritance of BC1F3 to excellent characteristics of parents (Elymus dahuricus; Hordeum brevisubulatum), heterosis and fertility restoration.

［目的］探明BC1F3代对亲本优良特性的继承情况、杂种优势及育性恢复情况。

He parameters fitted with Richards indicated that T showed lower final weight and initial specific growth rate, and higher inflection point time. The hybridation of TD had greater heterosis in final weight, inflection point weight, initial spec

D产肉性能比T提高很大，尤其在高海拔，超过了双亲的性能，杂种优势很高。T心重率、肝重率、胃重率和单位体重小肠长度比其他品种高，胸肌剪切力性状变异较大。

The choice characters set up by regression and path analysises did not only provide basis ofchoice of charater for hydrid parent plant and hydrid progeny of rice but also opened a brightfuture for the application of computers in high-yield breeding.

回归和通径所确定的选择性状不仅可以作为对水稻杂交亲本及其杂种后代的性状选择依据，提高其选择效果，同时也为计算机在水稻高产育种中的应用开辟了广阔的前景。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。