论文部分内容阅读
1983年从23个省和自治区的122个县、区,搜集标样882份,经繁殖成活504个菌系。总成活率为57.14%。以21C3为优势,其次为34号小种群,仅占总成活菌系的6.4%。各小种出现频率分别是21C3占93.2%,34C2占3.2%,34C1占2.4%,34C4占0.6%,而17、34C3和116各占0.2%。近十余年来21C3小种,一直处于优势地位。其原因之一,可能小种间存在着适应性强弱的问题,需要今后进一步查明。小麦抗秆锈Sr单基因品系,经测定结果表明:Sr11、Sr15、Sr21、Sr22、Sr24、Sr26、Sr27、SrTmp和SrTt2九个单基因品系,对我
In 1983, 882 samples were collected from 122 counties and districts of 23 provinces and autonomous regions, and 504 strains of bacteria were obtained through breeding. The total survival rate was 57.14%. The 21C3 advantage, followed by the 34th small population, accounting for only 6.4% of the total viable strains. The occurrence frequency of each races were 93.2% for 21C3, 3.2% for 34C2, 2.4% for 34C1, 0.6% for 34C4 and 0.2% for each of 34, 34 and 34. Nearly more than a decade 21C3 race, has been in a dominant position. One of the reasons for this is that there may be the problem of adaptability between races and needs to be further identified in the future. The results showed that there were nine single gene lines of Sr11, Sr15, Sr21, Sr22, Sr24, Sr26, Sr27, SrTmp and SrTt2