TITLE:
Comparison of Salt Tolerance in Brassicas and Some Related Species
AUTHORS:
Jianjie Su, Shu Wu, Zhijie Xu, Si Qiu, Tingting Luo, Yimin Yang, Qitao Chen, Yuying Xia, Song Zou, Bang-Lian Huang, Bangquan Huang
KEYWORDS:
Brassica; Related Species; Salt Tolerance; Multivariate Cluster Analysis
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.4 No.10,
September
25,
2013
ABSTRACT:
In this paper
the salt tolerance in Brassicas and some related species was compared. When seedlings
germinated on sand cultures with liquid MS medium were considered, the relative
germination rate, root length, shoot length and fresh seedling weight were
significantly correlated with each other (P 0.01), and only
the relative shoot lengths were significantly different among the tested
genotypes (P 0.05); When both seedlings germinated
on MS and MS plus 0.4% NaCl were considered, only the relative shoot length of
seedlings germinated on MS was significantly different from that germinated on
MS + 0.4% NaCl (P 0.05), and also only the relative
shoot lengths were significantly different among the tested genotypes (P 0.01). Raphanus sativa cv. Changfeng, B. juncea cv. JC and Brassica napus cv. ZS 10 showed low salt
tolerance in terms of relative germination rate, root length, shoot length and
fresh seedling weight; B. oleracea cv. JF-1, Sinapis alba cv. HN-2 showed
high salt tolerance in terms of relative germination rate, root length, shoot
length and fresh seedling weight. Based on our result we suggest that relative
shoot length might be convenient to rank the salt tolerance but cluster
analysis based on multiple parameters of relative germination rate, root
length, shoot length and fresh seedling weight might be more accurate in screening
for salt tolerance in Brassicas and related species.