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Researches on Cold-tolerance Breeding of Early Season Hybrid Rice and Its Prospect for Development in Jiangxi Province

机译：江西省杂交早稻耐寒育种研究及发展前景

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摘要

Studies were put forward on cold - tolerance breeding of early season hybrid rice with an objective of overcoming the chilling injury of seedlings encountered during rice production for the early season cropping in Jiangxi province. 4788A, a CMS line with strong cold - tolerance, was developed by means of cross breeding and use of strong cold tolerance from Dongxiang Wild Rice. It is expected that early season rice hybrids with strong cold - tolerance, high yield potential and resistance to pests and diseases will be generated by using parental lines with strong cold - tolerance. The prospect and challenges in the development of cold - tolerant hybrids for early season cropping were also discussed in this paper.
机译：为了克服江西省早季水稻生产过程中遇到的幼苗冷害，提出了杂交早稻耐寒育种研究。利用东乡野生稻的杂交育种和强耐寒性，开发了具有较强耐寒性的CMS系4788A。预计将通过使用耐寒性强的亲本来产生具有较强耐寒性，高产潜力和对病虫害抗性的早稻杂交种。本文还讨论了耐寒杂种在早季作物上的发展前景和挑战。

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