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Screening of
salinity tolerant jute (Corchorus capsularis
& C.
olitorius) genotypes via phenotypic and phsiology-assisted
procedures
Hongyu Ma1,
Ruifang Yang2, Zhankui Wang1, Tian Yu1,
Yuying Jia1,
Hanyan Gu1,
Xiansheng Wang1 and Hao Ma1*
Abstract:
To obtain salt
tolerant genotypes, salt tolerance of 10 jute genotypes of different
origins was evaluated by relative salt harm rate at germination stage
and by index of salt harm at seedling stage, respectively. The results
indicated that salt tolerance of germination stage of jute was
consistent with that of seedling stage, with a markedly significant (P
< 0.01) correlation of 0.8432 (n =10). Two high salt tolerant
genotypes (Huang No.1 and 9511) and two salt sensitive genotypes
(Mengyuan and 07-21) were screened out by these methods. Further
activity analysis of POD, SOD and CAT and determination of MDA content
at seedling stage validated that genotypes Huang No.1 and 9511 were more
salt tolerant than genotypes Mengyuan and 07-21. Our results indicated
that the combination of relative salt harm rate at germination stage and
index of salt harm at seedling stage can be used to evaluate salt
tolerance of jute genotypes.
1State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing
Agricultural University,
Nanjing 210095,
Jiangsu, China
2Ramie Research Institute, Hunan Agricultural University, Changsha 410128,
Hunan, China
*Corresponding
author: Email address:
Lq-ncsi@njau.edu.cn,
Tel: +86+25+84395324
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