结果表明，以中间型小偃麦与小簇麦作为桥梁亲本获得三属杂种的结实率较高，平均为20．5％。
In this paper the cross fertilities of hybrids was mainly studied. The results showed that the mean seed setting of Trigeneric hybrids was 20. 5%.
疫霉菌的杂种具有很强的生存能力，可以在腐生土壤中定植。
Hybrids of Phytophthora cactorum are of strong ability to survive and colonize in saprophytism in soil.
这为进一步深入探讨杂种优势形成机理奠定了一定的基础。
The results obtained in this study will be helpful for further elucidating mechanism of heterosis.
从基因组基因平均水平和分子水平上揭示杂种优势形成的遗传基础，为棉花杂交种育种提供理论依据。
Furthermore, the genetic basis of heterosis was revealed on average level of gene and molecular level. All these results provided theoretic basis for cotton hybrid breeding.
杂种优势作为自然界一种普遍的生物学现象，是提高作物产量的一种有效途径。
Heterosis as a common biological phenomenon in nature is an efficient approach to increase crop yield.
甘蓝型油菜主要农艺和产量性状的杂种优势及其分离世代的分析。
Heterosis and segregation on agronomic and yield traits in brassica napus l.
杂种优势的产生与亲本和子代间基因的差异表达密切相关。
Differential gene expression is mainly responsible for heterosis between parents and progeny.
从本实验的结果来看，差异表达模式与杂种优势之间并没有必然的联系。
The results indicated that there was no certain relationship between differential gene expression patterns and heterosis.
与细胞质雄性不育类型相比，隐性细胞核雄性不育具有独特的优点，在作物杂种优势的利用中具有一定应用潜力。
Comparing with cytoplasmic male sterility, recessive genie male sterility has application potentiality in heterosis utilization in crops due to its special characteristics.
用对应分析法对8个棉花野生种的杂种后代共83份材料的主要经济性状进行了分析。
The main economic properties of the species hybrid posterities of 8 cotton wild varieties from 83 portion of materials were analysed.
因此，在利用分子标记技术预测油菜的杂种优势时，SRAP标记效果更好。
Thus, for the prediction of yield heterosis, SRAP markers are better than SSR markers.
玉米是主要的粮食和饲料作物，经济地位十分重要，玉米杂种优势的利用是农作物杂种优势利用最成功的例证之一。
Maize was one of the most important food and feed crops with important economic significance, and the utilization of maize heterosis was one of the most successful examples in crops.
小麦作为世界主要的粮食作物，对其杂种优势利用的研究，特别是雄性不育机理的研究，一直是众多杂交小麦育种者设法攻克的难关。
Wheat as the main food crop, studying its utilization of heterosis and male sterility is the matter that many breeders have been trying to overcome.
在籼粳亚种间杂种优势利用中，它具有潜在的育种价值。
The potential breeding value of "02428 Xuan" was discussed in the utilization of heterosis between indica and japonica.
目前研究普遍认为，亲本之间存在的差异应该是杂种优势产生的基础。
Current researches think that the different genetypes between the parents should be the foundation of heterosis in plants.
根据过氧化物酶同工酶或酯酶同工酶谱带的变化很难预测玉米杂种优势的表现。
It is difficult to forecast maize heterosis based on the changes of peroxidase and e...
探讨了遗传距离对向日葵亲本选配和杂种优势预测的可能性及实用价值。
The possibility and practical value of the forecast of parents selection and hybrid vigour of sunflower were discussed.
棉花的杂种优势明显，已在生产上广泛利用。
Heterosis in cotton is noticeable and has been widely used in cotton production.
研究结果对我国肉用绵羊资源的评估、保存和预测杂种优势具有一定的指导意义。
The results may be useful as an initial guide in evaluating the level of genetic variation, developing conservation strategies and predicting heterosis.
雄性不育是油菜杂种优势利用的一条重要途径，在杂种优势利用中亲本选配是配制强优势组合、有效利用油菜杂种优势的关键环节。
Male sterility is an important way of utilizing rapeseed heterosis. In the breeding of hybrids, how to choose parents is a key step to gain strong heterosis and efficiently use heterosis.
杂种f 1花药不开裂的原因随其所含的杂合花粉不育基因座位种类和数目不同而异。
The main causes resulting in poor anther dehiscence in hybrid F1 were different with the kind and the number of heterozygous pollen sterility loci.
水稻是杂种优势利用最成功的作物之一，近几年对水稻杂种优势的遗传学基础也有很深入地认识。
Rice, one of the most important crops and showed greatest success on heterosis application, has deeply studied for the genetic basis of heterosis in recent years.
表明该二体附加系的附加染色体能在杂种后代中稳定传递，不易因遗传排斥而丢失，可用来进行有关农艺性状的基因定位研究。
A conclusion could be made that the alien addition chromosomes in the disomic addition line can steadily pass on to its offspring, which can be used for gene mapping.
GS豫豆8号是用系谱法从郑74046品系与尖叶桥梁亲本自然杂交株的杂种后代中选育成的窄叶型大豆新品种。
GS Yudou 8 is a narrow-leafed soybean variety derived from the natural hybrid of Zheng 74046 line and a tip soybean parent material (paternal) with a pedigree selection method.
应用化学杂交剂(CHA)诱导雄性不育是小麦杂种优势利用的重要途径之一。
Male sterility of wheat inducing by Chemical hybridization agents (CHA) is one of the main ways to produce hybrid wheat seed.
根据株高性状的遗传和相关性特点，文中还对小麦育种中亲本选配和杂种后代的选择进行了讨论。
The selection of parents and its offspring under wheat breeding program was also discussed in this paper.
杂种优势是生物界普遍存在的十分重要的生物学现象，并在多种动植物中得到成功地利用。
Heterosis, a widely existing biological phenomenon, has been successfully exploited on breeding of many plants and animals.
采用杂种狗作自体腘淋巴结移植的实验研究：8只为吻合血管的移植，另8只不吻合血管作为对照。
Autotransplantation of popliteal lymph node was studied experimentally in mongrel dogs. 8 lymph nodes were transplanted with vascular anastomoses, another8 without revascularization as control.
互作效应普遍存在，是烟草性状杂种优势表现的主要原因之一。
The epistatic effects could not be ignored in tobacco breeding. They were one of main causes of heterosis for most characters.
互作效应普遍存在，是烟草性状杂种优势表现的主要原因之一。
The epistatic effects could not be ignored in tobacco breeding. They were one of main causes of heterosis for most characters.
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