Introduction and Utilization of INGER Rice Germplasm in China

The International Network for Genetic Evaluation of Rice (INGER) is a global partnershipbetween international and national agricultural research institutions. INGER focuses onworldwide exchange, evaluation and utilization of improved varieties and elite breedinglines of rice. China has actively participated in the activities of INGER since 1980.During the pasted years, 26500 INGER entries with diversity genetic background have beenintroduced and evaluated by Chinese scientists. Among of them, 37 commercial varietiesdirectly from elite INGER entries and 27 rice hybrids using INGER lines as their restorerlines/donors have been released to farmers in China. About 1900 INGER entries wereindirectly utilized as cross parents or pest resistant donors in various national andprovincial rice breeding programs. Based on the incomplete statistics, there were 14.5million cumulated hectares planting these varieties and hybrids, from which 5.44 MT ofincreased rough rice has been received by farmers. INGER accelerates the transfer ofadapted varieties and hybrids to farmers, and increases the diversity of rice germplasmin cultivation. Therefore, INGER cooperation has made great benefit both in economy andsociety in China.

对INGER水稻种质的遗传评价和利用

中国自1981年起参加了国际水稻遗传评价(INGER)的合作研究。20年来已引入 INGER 提供的1.8万余份各国水稻种质,经全国14点的多年综合评价,从中直接命名推广了35个品种,作恢复系(源)组配了28个杂交水稻新组合,筛选出一大批高产、优质、多抗、耐逆、广亲和等材料,并作为亲本利用于全国各育种项目。据不完全统计,INGER 种质在中国的种植面积累计约1450万 hm^2,增产稻谷544万 t,取得了巨大的经济效益和社会效益。遗传背景多样化的 INGER 水稻种质不仅提高了我国的水稻育种水平,而且丰富了我国的稻种资源宝库。