利用航天诱变进行春小麦品种改良的研究

从1992年以来,利用返回式卫星先后5次共搭载7份小麦纯系材料种子,经10多年工作选育推广了高产抗病品质优良的新品种1个,进入省区试的品系2个,参加产量鉴定的品系4个.截至2005年新品种累积种植面积达4万hm2,获得了较好的经济和社会效益.同时针对航天诱变的特点,进行了改进育种方法和提高诱变效果的研究.

Study on Improving Variety of Spring Wheat by Space Treatment

Since 1992,7 pure wheat lines have been sent to space for 5 times by returned satelite.By more than 10 years of breading work,one new variety with high yield,disease resistance and high quality and 6 new lines have been bred.2 lines have taken part in the regional test of the Heilongjiang province.New variety has been extended up to 40 000 hm~2,and very good social and economic benefit has been made.In accordance with character of space mutation,improvement method of breeding and enhancing efficiency of breeding have been studied.