Evaluation and Comparison of Salinity Tolerance of Several Cotton Genotypes in a Saline Soil
Abstract:
Soil salinity is one of the important factors that reduces growth and production of crops. The salt-affected soils area is very considerable in Iran so that salt tolerant crops individually are cultivable in the most these lands. Like as other plants, the adverse effect of salinity on various cultivars and genotypes of cotton werent similar and despite the fact that cotton is somewhat tolerant to salinity, differences in growth traits and yield occurs. Hence, a field experiment was carried out in Golestan province, Agricultural Research Station, Marked Farm of Anbarolum to evaluate the effect of soil salinity on growth traits and compare the yield of 12 cotton genotypes. Soil salinity was 12.5 dS/m at planting time. The results showed that soil salinity established a significant effect on growth and yield traits including germination percent, plant height, boll weight, yield of first peaking, yield of second peaking, total yield and yield earliness. The greatest germination percent was obtained by Shirpan 539, Çukurova and Q28 genotypes. In mean comparison of the data, Sahel genotype had the highest height and the heaviest boll. Golestan genotype produced the most total yield because of production the considerable more yield in second picking, However 539 Shirpan genotype produced the most yield in first peaking. The earliness of latter genotype had too much preference as compared to other genotypes. Finally, according to the results, extension and expansion of Golestan genotype cultivation was recommended for salt-affected soils in Golestan province.
Language:
Persian
Published:
Iranian Journal of Cotton Researches, Volume:2 Issue: 2, 2014
Pages:
13 to 26
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