草业学报2012，Vol.21Issue(4)：43-51,9.
结缕草属草坪草种质资源的耐盐性评价
Salinity tolerance evaluation of Zoysia turfgrass germplasm
摘要
Abstract
Salinity tolerance in 103 Zoysia accessions from seven species was assessed in hydroponic culture containing 20 g/L NaCL The relative green leaf coverage and relative dry shoot clipping weight showed that there were differences in salinity tolerance between accessions. Using relative green leaf coverage as an indicator, there were 28 and 46 accessions with more salinity tolerance than ' manilagrass' and Zoysia japonica 'Lanyin No. 3', respectively. When compared by relative dry shoot clipping weight, there were 11 and 25 accessions with more salinity tolerance than 'manilagrass' and Z. japonica 'Lanyin No. 3', respectively. Z. pacifica was the most salinity tolerant species, Z. macrostachya, Z. matrella, and Z. tenuifolia had strong salinity tolerance, while Z. sinica, Z. japonica and Z. koreana were intermediate or sensitive. Clustering analysis of relative green leaf coverage and relative dry shoot clipping weight, indicated that the 103 Zoysia accessions could be divided into three groups; group I (including Z5185 and Z093) was extremely saline tolerant; group II had comparatively higher relative green leaf coverages and relative dry shoot clipping weights 070%). It could be further divided into salinity tolerance and intermediate salinity tolerance; group III had comparatively low relative green leaf coverage and relative dry shoot clipping weight, and could be divided into weak and sensitive salinity tolerance at a Euclidean distance of 3.关键词
结缕草属植物/种质资源/耐盐性/评价Key words
Zoysia/germplasm/salinity tolerance/evaluation分类
农业科技引用本文复制引用
李珊,陈静波,郭海林,宗俊勤,张芳,褚晓晴,蒋乔峰,丁万文,刘建秀..结缕草属草坪草种质资源的耐盐性评价[J].草业学报,2012,21(4):43-51,9.基金项目
江苏省科技厅基础设施项目(BM2009905)资助. （BM2009905）
