论文部分内容阅读
利用人工配制的海水筛选耐盐性较好的小麦品种,为沿海滩涂地区的小麦耐盐育种提供重要信息。本研究利用人工海水处理的方法,对363份小麦种质资源进行了芽期耐盐性初步鉴定,筛选出芽期耐盐性为1级的小麦种质28份。进一步对芽期耐盐性较好的48份小麦种质进行了苗期耐盐性鉴定,并对其耐盐指标进行隶属值模糊评价分析,从中鉴定出了2个苗期耐盐性较强的小麦种质,分别为淮麦31和红壳洋麦。依据来源的不同,发现小麦种质资源的芽期耐盐性大小依次为地方品种>育成品种>国外引进品种。小麦芽期与苗期的耐盐性相关分析表明,二者相关性极低(r=-0.0051)。
Screening wheat varieties with better salt tolerance by using artificial seawater for preparation provided important information for salt tolerance breeding of wheat along coastal tidal flat areas. In the present study, 363 wheat germplasm resources were initially identified as salt tolerant at the bud stage, and 28 wheat cultivars with grade 1 salt tolerance at budding stage were screened out by artificial seawater treatment. Forty-eight wheat germplasms with better salt-tolerance at bud stage were identified as salt tolerant at seedling stage, and fuzzy evaluation of their salt tolerance index was carried out. The results showed that two salt-tolerant seedlings Of the wheat germplasm, respectively, Huai Mai 31 and red shell foreign wheat. According to different sources, it was found that the salt tolerance of wheat germplasm at budding stage was in the order of local varieties> bred varieties> imported varieties. Correlation analysis of salt tolerance between wheat germination stage and seedling stage showed that the correlation between them was extremely low (r = -0.0051).