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Acta Agron Sin ›› 2008, Vol. 34 ›› Issue (12): 2218-2222.doi: 10.3724/SP.J.1006.2008.02218

• RESEARCH NOTES • Previous Articles     Next Articles

Response to Sodium Chloride Stress at Germination and Seedling and Identification of Salinity Tolerant Genotypes in Foxtail Millet Landraces Originated from China

TIAN Bo-Hong1*,WANG Su-Ying2,LI Ya-Jing1,WANG Jian-Guang1,ZHANG Li-Xin1,LIANG Feng-Qin1,ZHAI Yu-Zhu1,LIU Jin-Rong2   

  1. 1 Cangzhou Academy of Agricultural and Forestry Sciences, Cangzhou 061001, Hebei; 2 Anyang Institute of Agricultural Sciences, Anyang 455000, Henan, China
  • Received:2008-03-10 Revised:2008-06-16 Online:2008-12-12 Published:2008-10-10

Abstract:

One hundred and ninety–four Chinese foxtail millet [Setaria italica (L.) P. Beauv.] landraces were screened at germination and seedling stages for salinity tolerance with 150 or 250 mmol L-1 NaCl treatments. On the basis of relative seed germination rate (RSG), relative shoot length (RSL), and relative root length (RRL), the landrace cultivars Honggu, Xiaohuanggu, and Sanbianchou, were identified to be the most salt-tolerant while Yegu 5 and Yanggu sensitive to salt stress. Correlation analysis indicated that RSG was not closely correlated with relative plant height (RPH) and relative leaf area (RLA) of the first true leaf at seedling stage. However, Yegu 5 and Yanggu with poor salinity tolerance at germination stage were also sensitive to salt stress at seedling stage. The RPH of Honggu, Xiaohuanggu, and Sanbianchou, were smaller than those of Yegu 5 and Yanggu. Under high concentrations of NaCl, the RLA of Xiaohuanggu was smaller than that of other cultivars.

Key words: Foxtail millet Landrace;Sodium chloride stress;Salt-tolerant genotype

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