关键词: 烟草种质资源, 烟草种质资源, 烟杈, 抗病性鉴定, TMV病株率, 人工接种

Abstract:

In order to provide the reference data for salt-tolerant corn breeding, screening and identification, Filter paper culture method is adopted to analyze germination potential, germination rate, seed viability, seedling height, seedling weight, root fresh weight, root length and root weight under treatment with different NaCl concentrations among the four maize hybrids combinations. The results showed that germination potential, germination rate, seed viability, seedling height, seedling weight, root fresh weight, root length and root weight，all decreased under treatment with different NaCl concentrations. The denser NaCl concentrations were, the significant decline of the above data showed. The five salt tolerance traits classification of the hybridized combination 23 were higher than the other maize hybrid combinations except for the root length. The performance of the various traits of salt vary widely as well as the salt tolerance performances of the various maize hybrid combinations. The various traits were synthetically considered in screening and identifying salt resistance.