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1·The SW have strong ability on cold tolerance.

越冬品系具有很强的耐低温能力。

2·It is with characters of good quality cold tolerance rice blast resistance and high yield.

该品种具有优质、耐冷、抗病和高产的特点。

3·Thus the breeding goals for cold tolerance were different on various rice cropping regions.

因此，耐冷育种目标和品种因稻区而异。

4·This suggests a new way of improving cold tolerance of plant by genetic engineering technique.

这一发现为利用基因工程手段提高植物耐寒性提供了一条新途径。

5·Therefore, a number of scientists have been regarded plant cold tolerance as an important research subject.

因此，一直以来各国科学家都把植物抗寒性问题作为一个重要的研究课题。

6·Cold tolerance at the seedling stage are one of important factors affecting the development of growth in rice.

苗期耐冷性是影响水稻生长发育的重要因素之一。

7·Cold tolerance is a complex quantitative trait of plant which is a result of cooperation of many related genes.

植物抗寒性属于复杂的数量性状，是多基因协同作用的结果。

8·The types of the 15 varieties might be considered into 6 types on the basis of their cold tolerance at booting stage.

根据这15份材料的孕穗期耐冷性特征，将它们的耐冷型划分成6类。

9·As ectotherm animals, insects developed the cold tolerance mechanism adapting lower temperature during the evolution.

昆虫是外温动物，在长期的进化过程中形成了一整套适应不良低温环境的抗寒机制。

10·Several clones also showed satisfactory cold tolerance, pest and disease resistance, and trunk form and side branching.

有些无性系还表现出了良好的抗寒性、抗病虫害性以及良好的树干形状和边枝情况。