日本优异种质资源藤系138的利用与评价

Evaluation and Utilization of Japanese Excellent Germplasm Resources Tengxi 138

为积极鉴定、评价优异种质资源,丰富水稻品种遗传背景,抵御水稻遗传单一性的潜在危险,扩大遗传距离,提高水稻品种的杂种优势,分析了藤系138种质资源的评价与利用情况。结果表明:优良的父母本是构建藤系138丰产、多抗和超亲的遗传基础,具有熟期适宜、产量高、抗稻瘟病强、抗寒性强、耐盐性强、抗倒伏等特点,在黑龙江省累计推广面积达22.71万hm2,并且在省外也有一定的种植面积。藤系138不仅可直接应用于生产中,而且作为亲本直接或间接选育水稻新品种20个,产生了巨大的经济效益和社会效益,为黑龙江省的水稻发展做出一定贡献。

In order to actively identify and assess the excellent germplasm resources,enrich the genetic background of rice germplasm resources,resist to the potential danger of rice genetic uniformity,expand genetic distance,improve heterosis of rice varieties,the evaluation and utilization of germplasm resources of Tengxi 138 were analyzed.The results showed that good parents were to build super genetic basis of Tengxi 138 fertility with appropriate ripe period,high yield,strong blast and cold resistance,strong salt tolerance and strong lodging resistance.The total accumulated extension area was 227.1 thousand hectare in Heilongjiang province,and there were also planted in other provinces.Not only it could be applied directly in production,but also it was utilized as a breeding parent directly or indirectly to breed 20 new varieties of rice,achieving huge economic and social benefits.It made great contributions to the development of rice in Heilongjiang province.