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Bulletin of Botanical Research ›› 2002, Vol. 22 ›› Issue (1): 37-41.

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EFFECTS OF NaCl STRESSON GROWTH AND CONTENT OF SEVERAL SOLUTES OF WHEAT CULTIVARS WITH DIFFERENT DROUGHT-TOLERANCE

ZHANG Hai-yan   

  1. Depar tment of Biology, Shanxi Teachers' University, Linfen 041004
  • Received:2001-02-16 Online:2002-03-15 Published:2016-06-14

Abstract: Two wheat cultivars(Lumai-14 and Jinhan-47) with different drought-tolerance were treated with NaCl solutions. Effects of NaCl stress on growth and content of several solutes of seedlings were studied. Results showed that NaCl treatment caused a decrease in length of shoots and roots of wheat seedlings, and the degree of decrease was higher in drought-tolerance cultivar(Jinhan 47) than in drought-sensitive one(Lumai-14). Na+ contents increased slowly and Na+-exclusion capability in shoots and roots of Jinhan-47 was stronger than that of Lumai-14. Furthermore, higher proline and aminonitrogen contents, a smaller decrease in NO3- contents and a relative stability of K+ contents in roots of Jinhan-47 were found. These suggests that salt-tolerant ability of Jinhan-47 is much stronger than Lumai-14.

Key words: Wheat, NaCl treatment, ionic content, drought-tolerance, salt tolerance