Tolerance of Grasses to Calcium Chloride, Magnesium Chloride and Sodium Chloride(Crop Physiology and Ecology)

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概要

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• The tolerance of six cool-season grasses and six warm-season grasses to three kinds of salt was examined in solution culture. Among the cool-season grasses, tall fescue (Festuca arundinacea Schreb.) was the most tolerant to all three salts. Among the warm-season grasses, bermudagrass (Cynodon dactylon (L.) Pers.) was the most tolerant to excess calcium chloride and sodium chloride, while bahiagrass (Paspalum notatum Flugge) was the most tolerant to excess magnesium chloride. A positive and significant correlation was found between estimates of the concentration at which plant growth decreases by 50% (C_<50>) in the presence of excess CaCl_2 and those in the presence of excess NaCl. The C_<50> estimates in excess MgCl_2, however, were not correlated with those in the other two salts. The results suggest that common physiological mechanism confers tolerance to both excess CaCl_2 and excess NaCl, but a different mechanism to excess MgCl_2.

• 日本作物学会の論文

著者

• Masaoka Yoshikuni

  Graduate School Of Biosphere Science Hiroshima University

• KOBAYASHI Hidekazu

  National Agriculture and Food Research Organization

• SATO Setsuro

  National Agriculture and Food Research Organization

• Kobayashi Hidekazu

  National Agricultural Research Center For Western Region Naro

• Masaoka Yoshikuni

  Graduate School of Biosphere Science, Hiroshima University

• Masaoka Yoshikuni

  Graduate School of Biosphere Sci., Hiroshima University

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