NACL AND CACL2 EFFECTS ON DRY MATTER PRODUCTION, WATER RELATIONS, ACCUMULATION OF INORGANIC AND ORGANIC IONS SOLUTE IN TWO SENSITIVE AND TOLERANT WHEAT GENOTYPES

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MOHAMMADI SOLEYMAN; MAJIDI HERAVAN E.; KHOUSH KHOLGH SIMA N.A.; NOURMOHAMMADI GHORBAN; SAEIDI ABAS

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Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2008 | Volume:17 | Issue:4 Page(s): 53-64

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Title

NACL AND CACL2 EFFECTS ON DRY MATTER PRODUCTION, WATER RELATIONS, ACCUMULATION OF INORGANIC AND ORGANIC IONS SOLUTE IN TWO SENSITIVE AND TOLERANT WHEAT GENOTYPES

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Keywords

BREAD WHEAT GENOTYPEQ2

NACLQ3

CACL2Q3

NA+/K+ RATIOQ2

PROLINEQ2

SALT TOLERANCEQ2

WATER RELATIONSQ2

Abstract

Salinity effects involve osmotic stress, ionic imibalance and ion toxicity. Increasing calcium in root medium could reduce Na+ uptake and through reducing Na+/K+ ratio in plant, would increase crop growth. In order to study these effects, an experiment with two genotypes G12 (salt tolerant) and G3 (salt sensitive), three levels of salinity (control, 100 and 200 mM NACL) and three levels of calcium (0.5, 5 and 10mM CaCl2) was conducted at hydroponic culture media. Twenty three days after seed planting, salinity treatments were imposed, then experiment was continued until 3 weeks. At 0 and 21 days after treatments imposed, samples were taken from shoot. When salinity increased, shoot and root dry weight, leaf area index, K+ and Ca2+ concentration of root and shoot, K+ concentration of upper and lower leaves of main stem, water potential of flag leaf were decreased, but Na+ concentration and Na+/K+ ratio of root, shoot, upper and lower leaves, PROLINE accumulation were increased. In terms of shoot Na+ concentration, no significant difference was observed between G12 and G3 at 0 day, but G3 at 21 days after treatment, significantly transmitted more Na+ to the shoot.Adding calcium to root media reduced salinity effects, thus SALT TOLERANCE was enhanced. For example, addition of 10 mM CaCl2 to 200 mM NACL treatment decreased Na+/K+ ratio of root and shoot, upper and lower leaves of the maiIl stem, but increased Ca2+ concentration of shoot, water potential of flag leaf, PROLINE accumulation, and shoot dry matter as compared with 200 mm NACL alone. The tolerant genotype (G12), compared to the sensitive genotype (G3) , showed more salinity tolerance through translocating less Na+ to shoot, more Na+/K+ ratio, absorbing more Ca2+ and K+, producing more organic compounds and maintaing higher WATER RELATIONS.

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APA: Copy

MOHAMMADI, SOLEYMAN, MAJIDI HERAVAN, E., KHOUSH KHOLGH SIMA, N.A., NOURMOHAMMADI, GHORBAN, & SAEIDI, ABAS. (2008). NACL AND CACL₂ EFFECTS ON DRY MATTER PRODUCTION, WATER RELATIONS, ACCUMULATION OF INORGANIC AND ORGANIC IONS SOLUTE IN TWO SENSITIVE AND TOLERANT WHEAT GENOTYPES. JOURNAL OF AGRICULTURAL KNOWLEDGE, 17(4), 53-64. SID. https://sid.ir/paper/28992/en

Vancouver: Copy

MOHAMMADI SOLEYMAN, MAJIDI HERAVAN E., KHOUSH KHOLGH SIMA N.A., NOURMOHAMMADI GHORBAN, SAEIDI ABAS. NACL AND CACL₂ EFFECTS ON DRY MATTER PRODUCTION, WATER RELATIONS, ACCUMULATION OF INORGANIC AND ORGANIC IONS SOLUTE IN TWO SENSITIVE AND TOLERANT WHEAT GENOTYPES. JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2008;17(4):53-64. Available from: https://sid.ir/paper/28992/en

IEEE: Copy

SOLEYMAN MOHAMMADI, E. MAJIDI HERAVAN, N.A. KHOUSH KHOLGH SIMA, GHORBAN NOURMOHAMMADI, and ABAS SAEIDI, “NACL AND CACL₂ EFFECTS ON DRY MATTER PRODUCTION, WATER RELATIONS, ACCUMULATION OF INORGANIC AND ORGANIC IONS SOLUTE IN TWO SENSITIVE AND TOLERANT WHEAT GENOTYPES,” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 17, no. 4, pp. 53–64, 2008, [Online]. Available: https://sid.ir/paper/28992/en

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