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育种理论与实践
相关语句
  breeding ` s theory and practice
     Rice Colony Breeding`s Theory and Practice
     水稻群体育种理论与实践
短句来源
  “育种理论与实践”译为未确定词的双语例句
     A Theory and it's Practice of Rice Breeding for Superhigh Yield.
     水稻高产育种理论与实践
短句来源
     Theories and Practices of Breeding Japonica Rice for Super High Yield
     北方粳型稻超高产育种理论与实践
短句来源
     Based on the research achievements for over 40 years obtained by Rice Institute, Shenyang Agricultural University, the authors comprehensively analyzed the theory and practice for super high yield breeding of northern japonica rice in terms of crossing between indica and japonica, creation of new plant type and development of new varieties. Physiological and genetic problems in super high yielding rice were discussed. Breeding of super high yielding new plant type of rice is a key for realizing the third breakthrough at rice yield.
     以沈阳农业大学水稻研究所40多年来的研究成果为主,从籼粳稻杂交、新株型创造及新品种选育等方面综合评述了北方粳稻超高产育种理论与实践研究进展,讨论了水稻超高产有关的生理与遗传基础问题,指出新株型超高产育种是实现水稻单产第三次飞跃的重要途径。
短句来源
     The previous research results indicated that it is not only feasible but also reliable to make use of computer simulation to study theory and practical problems in animal breeding.
     已有的研究结果表明,利用计算机模拟方法研究动物遗传育种理论与实践问题不仅是可行的,而且是可靠的。
短句来源
     The latest progresses in the theory and practice of two-line super hybrid rice breeding in China were summarized. The main direction of attack and strategy for two-line super hybrid rice breeding were put forward, in which the innovation of germplasms and genetic improvement of the parents by molecular breeding technology were expected to be key in two-line super hybrid rice breeding in the near future.
     综述了近年来中国在两系超级杂交稻育种理论与实践中取得的进展,提出了两系超级杂交稻育种的主攻方向和策略,认为以分子育种技术为核心,进行种质创新及亲本遗传改良是今后两系超级杂交稻育种的关键。
短句来源
  相似匹配句对
     THEORY and PRACTICE
     理论实践
短句来源
     A Theory and it's Practice of Rice Breeding for Superhigh Yield.
     水稻高产育种理论实践
短句来源
     Rice Colony Breeding`s Theory and Practice
     水稻群体育种理论实践
短句来源
     Theory and practice on yak molecular breeding
     牦牛分子育种理论实践
短句来源
     Fast Reading, Its Theories and Practice
     快速阅读的理论实践
短句来源
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Flax is an important natural material linen spinning industry in China.Recently,with the development of market economy,farmers and flax factories need new varieties that have short vegetation period,resistance to lodging,high fiber content.In order to resolve these problems quickly,we have studied on introducing exogenous DNA into flax since 1993.Exogenous DNA introducing could effectively transfer the character of plant high,stem length,fiber content,resistance to lodging,petal color and seed coat color.The...

Flax is an important natural material linen spinning industry in China.Recently,with the development of market economy,farmers and flax factories need new varieties that have short vegetation period,resistance to lodging,high fiber content.In order to resolve these problems quickly,we have studied on introducing exogenous DNA into flax since 1993.Exogenous DNA introducing could effectively transfer the character of plant high,stem length,fiber content,resistance to lodging,petal color and seed coat color.The character can stable heredity at generation D 3-D 4. This method can reduce years of the breeding, so this experiment is very important to the theory and practice of flax breeding.

亚麻是我国重要的天然纺织工业原料之一,亚麻加工企业是黑龙江省的支柱型产业和重要的出口创汇企业。近年来随着市场经济的发展, 生产上对亚麻品种提出了更高的要求,生产上急需质佳、丰产、早熟、抗倒、出麻率高的品种。为了尽快地解决这一问题,从1993 年开始,对亚麻外源 D N A 导入技术进行了较深入的研究。通过形态学观察,遗传学分析, 发现亚麻外源 D N A 导入后代在株高、工艺长度、麻率、抗倒伏性、花色、种皮色等性状有变异,一般 D3 - D4 代可稳定遗传,利用该技术进行育种,可缩短育种年限,加速育种进程。该项技术的研究丰富了亚麻育种的理论与实践的内函,对亚麻事业的发展具有重要的指导意义。

Monte Carlo simulation is a method of random simulation, random sampling or statistical testing. By this way, a proximity results from an experiment that is too complicated to be carried out in practical could be gotten. Monte Carlo simulation can be extensively and effectively done with computer system. In order to simulate effectively, a suitable probability model should be built and a great deal of random sample should be done. Finally, the arithmetic mean as the proximity mean value and the variance or standard...

Monte Carlo simulation is a method of random simulation, random sampling or statistical testing. By this way, a proximity results from an experiment that is too complicated to be carried out in practical could be gotten. Monte Carlo simulation can be extensively and effectively done with computer system. In order to simulate effectively, a suitable probability model should be built and a great deal of random sample should be done. Finally, the arithmetic mean as the proximity mean value and the variance or standard deviation of the statistical estimation value must be given. In this paper, an example of Monte Carlo computer simulation is showed.

蒙特卡罗方法是一类通过随机变量统计试验,随机模拟以求得问题近似解的方法。计算机模拟研究是蒙特卡罗方法的现代化,利用计算机模拟方法研究植物遗传育种的理论与实践问题不仅是可行的,而且是可靠的。利用计算机模拟研究植物遗传育种问题时需注意建立一个准确可靠的遗传模型,利用能产生周期长且统计性质优的伪随机数产生方法,以使模拟结果更加准确可靠。

Based on the theory and practice of the rice breeding for 20 years, authors proposed that the high-yield rice varieties with erect big spike could be selected at the early stage of breeding in accordance with the parameters: fast growth at seedling stage, fast and high accumulation of dry matter at the late stage of the development, the ratio of grain/straw equals 1.5︰1 or more, heavy single tiller, thick tiller base, and heavy tiller per unit length; high grain setting rate at secondary branch; resistant to...

Based on the theory and practice of the rice breeding for 20 years, authors proposed that the high-yield rice varieties with erect big spike could be selected at the early stage of breeding in accordance with the parameters: fast growth at seedling stage, fast and high accumulation of dry matter at the late stage of the development, the ratio of grain/straw equals 1.5︰1 or more, heavy single tiller, thick tiller base, and heavy tiller per unit length; high grain setting rate at secondary branch; resistant to the main local pests; long stay green; being tolerant to cold.

根据20年来水稻育种理论与实践研究 ,认为水稻新品种选育过程中抓住生育前期早生快发、生育后期干物积累速度快且大、谷草比高于1.5:1、单茎重、茎基粗、单位长度茎秆重、穗部二次枝梗着粒率高、穗粒结构协调、抗当地主要病害、活秆成熟和耐寒性强等主要参数 ,即可在早期选育出具有高产性状的直立穗型水稻品种。

 
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