详细释义
Noun:
-
(genetics) the tendency of a crossbred organism to have qualities superior to those of either parent
双语例句
- 1. Strong heterosis cross also had high genotype value.
- 优势强的组合，其基因型值较高；
youdao
- 2. There are two ways in utilization of heterosis in rapeseed.
- 油菜杂种优势利用途径主要有三系法和两系法。
youdao
- 3. This heterosis could be predicted by the resistance of their parents.
- 这种优势可依亲本的抗性进行预测。
youdao
- 4. Heterosis and segregation on agronomic and yield traits in brassica napus l.
- 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。
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- 5. To achieve this, heterosis utilization is proved to be a very effective way.
- 实践证明，杂种优势利用是提高油菜产量的主要途径。
youdao
- 6. Heterosis in cotton is noticeable and has been widely used in cotton production.
- 棉花的杂种优势明显，已在生产上广泛利用。
youdao
- 7. But the average heterosis of all hybrids in grain protein yield per plant was 17. 20%.
- 但单株籽粒蛋白质产量表现正向杂种优势，平均17.20%。
youdao
- 8. Thus, for the prediction of yield heterosis, SRAP markers are better than SSR markers.
- 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。
youdao
- 9. The SCA effects of different crosses were positively correlated with super parent heterosis.
- 不同组合间的SCA效应与超亲优势呈正相关关系。
youdao
- 10. Differential gene expression is mainly responsible for heterosis between parents and progeny.
- 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。
youdao
- 11. The results obtained in this study will be helpful for further elucidating mechanism of heterosis.
- 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。
youdao
- 12. This group of hybrids for the Sanya and Thailand have provided the theoretical basis of heterosis.
- 这就为三亚和泰国群体杂交产生杂交优势提供了理论基础。
youdao
- 13. Heterosis as a common biological phenomenon in nature is an efficient approach to increase crop yield.
- 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。
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- 14. The biggest heterosis will be obtained by improved the performance of parents' characters in parents' apolegamy.
- 在亲本选配中，尽量提高双亲性状的表现，以取得较大的杂种优势。
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- 15. There was large genetic variance for most traits investigated in the lines from the exotic heterosis population.
- 结果表明，在这一优势群的优良自交系中，多数数量性状遗传变异较大，具有进一步改良提高的潜力。
youdao
- 16. Most of the special combining effect values were negative, most of the average heterosis were negative in effect.
- 一般配合力效应值的高低顺序与亲本值的高低顺序呈现基本一致的趋势。
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- 17. The results indicated that there was no certain relationship between differential gene expression patterns and heterosis.
- 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。
youdao
- 18. Based on the results, the pollination methods and techniques on seed works of cotton heterosis utilization was discussed.
- 依据本试验结果，就棉花杂优利用制种工作的授粉方法及技术进行讨论。
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- 19. Current researches think that the different genetypes between the parents should be the foundation of heterosis in plants.
- 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。
youdao
- 20. Heterosis, a widely existing biological phenomenon, has been successfully exploited on breeding of many plants and animals.
- 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。
youdao
- 21. 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。
youdao
- 22. The heritability, genetic correlation, gene effects, combining ability and heterosis of quality traits in Sorghum were studied.
- 与高粱发育性状、产量性状相比较，揭示了品质性状的遗传特点。
youdao
- 23. Yield, fruit weight, fruit number had the largest portion for positive heterosis in all crosses, fruit thickness were the smallest.
- 各杂交组合中正向优势所占比例较大的性状为产量、瓜重、采瓜数、瓜长；最小的为果肉厚。
youdao
- 24. The selection of interspecific combinations with powerful heterosis is still an effective way so far to raise the yield of hybrid rice.
- 选育强优势的品种间组合仍是进一步提高杂交水稻产量的一条有效途径。
youdao
- 25. These results, which coincided with current hybrid breeding practices, verified the significance of combining ability in heterosis breeding.
- 这些结果与育种实践相符，表明配合力研究对杂交优势育种有指导意义。
youdao
- 26. A new statistical formula is constructed for testing the significant level of estimated results of classic estimation of three-way heterosis.
- 推导了三元杂种优势率经典估计方法的新的统计检验公式。
youdao
- 27. Heterosis of seed yield and its components of 66 crosses, from a diallel cross design of 12 parental varieties of Brassica napus L. were studied.
- 应用双列杂交设计，研究了遗传来源不同的12个甘蓝型油菜品种间66个双列组合的单株籽粒产量及产量性状的杂种优势。
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- 28. In addition, we correlated the concurrence of DG and yield-related quantitative trait loci, providing a potential group of heterosis-related genes.
- 此外，还发现这些DG往往被定位到和产量相关的数量性状座位上，这为我们提供了潜在的杂种优势基因。
youdao
- 29. 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.
- 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。
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- 30. The Indica-compatible and Japonica-compatible IRLs can be matched with Japonica rice or Indica rice to select good combinations with strong heterosis.
- 而具有亲粳性和亲籼性的重组自交系可作为育种中间材料或与粳或籼稻配组，筛选出优势强的组合用于水稻生产。
youdao
- Kenaf is one of the most important fibre crops, with obvious heterosis.
摘要红麻是一种重要的纤维作物，杂种优势显著。 - There were some transgressive progenies in hybrids which exhibited heterosis.
杂种后代存在超亲子代，表现一定的杂种优势。
用作名词 (n.)
用法讲解
- breeding for heterosis 杂种优势育种...
- heterosis breeding 杂种优势育种...
- maternal heterosis 母本杂种优势,母性杂...
相关词汇
- hybrid vigor 异形配子,杂种优势...
【近义词】
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