Germination characters and early seedling growth of wheat (Triticum aestivum L.) genotypes under salt stress conditions

被引：16
作者：
Alom R. [1 ]
Hasan M.A. [1 ]
Islam M.R. [1 ,2 ]
Wang Q.-F. [2 ]
机构：
[1] Department of Crop Physiology and Ecology, Hajee Mohammad Danesh Science and Technology University, Dinajpur
[2] Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Hubei, Wuhan
来源：
Journal of Crop Science and Biotechnology | 2016年 / 19卷 / 5期
关键词：
germination; Salinity; salt tolerance index; seedling growth; wheat;
D O I：
10.1007/s12892-016-0052-1
中图分类号：
学科分类号：
摘要：
Screening of wheat genotypes as salt tolerance through seed germination and early seedling growth is crucial for their evaluation. Seeds of 20 wheat genotypes were germinated in Petri dishes on a sand bed irrigated with saline (15 dS m-1) and control solutions for 10 days and also tested at different salinity levels (control, 4, 6, 8, and 10 dS m-1) which were artificially developed in the soil for 30 days. At 10 days, germination percentage, rate of germination, co-efficient of germination, germination vigor index, shoot length, root length, and seedling dry weight were found to be affected due to salinity. Salt tolerance index (STI) for seedling dry weight maintained a significant positive correlation with rate of germination, germination vigor index, shoot length, and root length, which indicates that these parameters could be used as selection criteria for screening wheat genotypes against salt stress. Significant differences in shoot length, root length, and seedling dry weight in 30-day-old seedlings were observed among selected wheat genotypes as well. From the overall observation of germination characters and early seedling growth, it was concluded that the wheat genotypes including Gourab, Shatabdi, Bijoy, Prodip, BARI Gom 26, BAW 1186, and BAW 1189 showed better salt tolerance as compared to others. © 2016, Korean Society of Crop Science and Springer Science+Business Media Dordrecht.
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页码：383 / 392
页数：9
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