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DOI:10.1111/grs.12138
Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/grs.12138/full
    Last checked: 04/11/2017
http://onlinelibrary.wiley.com/doi/10.1111/grs.12138/pdf
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Publication Type:
i
Report
Author(s):Fang, Zhigang; Hu, Zhaoyang; Zhao, Huihui; Yang, Lei; Ding, Chenglong; Lou, Laiqing; Cai, Qingsheng
Author Affiliation:Fang: College of Life Sciences, Nanjing Agricultural University, Nanjing, China and Kashghar University, Kashghar, China; Hu, Zhao, Yang, Lou, and Cai: College of Life Sciences, Nanjing Agricultural University, Nanjing, China; Ding: Institute of Livestock Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
Title:Screening for cadmium tolerance of 21 cultivars from Italian ryegrass (Lolium multiflorum Lam) during germination
Section:Original articles
Other records with the "Original articles" Section
Source:Grassland Science. Vol. 63, No. 1, January 2017, p. 36-45.
# of Pages:10
Publishing Information:Oxford, England: Blackwell Pub.
Keywords:TIC Keywords: Cadmium; Cultivar evaluation; Cultivar variation; Germination; Lolium multiflorum; Plant growth regulators; Resistance; Stress factors; Variety trials
Abstract/Contents:"The cadmium (Cd) tolerance of 21 Italian ryegrass (Lolium multiflorum Lam.) were investigated in this study by evaluating the process of seed germination on exposure to excess Cd. Excess Cd resulted in the significant growth inhibition, particularly of root growth. The relation between Cd concentrations and inhibition rate of root or shoot elongation can be well described by a logarithmic equation. The maximum values of IC50 (Cd concentration when the root or shoot elongation decreased to 50% compared with control) were observed in root and shoot of 'Idyll', whereas the minimums showed in 'Nioudachi' and 'Harukaze'. Cadmium dramatically inhibited the seed germination of 21 cultivars. By comparison of physiological parameters including the absolute and relative value of root and shoot length, germination rate, germination energy, germination index and vigor index, all the tested cultivars exhibited variation when exposed to the same strength of Cd stress. In addition, the values of evaluation index, subordinate function were used to evaluate the Cd tolerance among cultivars treated with excess Cd. As a result, cultivar 'Idyll' was identified to be most tolerant to Cd stress, cultivar 'Tachiwase' was the most sensitive one. Cluster analysis indicated that 21 cultivars of Italian ryegrass can be classified into four groups, Cd-tolerant, moderate Cd-tolerant, low Cd-tolerant and Cd-sensitive groups. The results will be basic information for cultivating forage crops used as bioenergy crops in Cd polluted environments."
Language:English
References:40
Note:Figures
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fang, Z., Z. Hu, H. Zhao, L. Yang, C. Ding, L. Lou, et al. 2017. Screening for cadmium tolerance of 21 cultivars from Italian ryegrass (Lolium multiflorum Lam) during germination. Grassland Science. 63(1):p. 36-45.
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DOI: 10.1111/grs.12138
Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/grs.12138/full
    Last checked: 04/11/2017
http://onlinelibrary.wiley.com/doi/10.1111/grs.12138/pdf
    Last checked: 04/11/2017
    Requires: PDF Reader
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