Alleviating adverse effect of soil salinity in wheat (Triticum aestivum L.) through application of zinc fertilizer
2010
Singh, D. | Ram, P.C. | Dar, S.R. | Sharma, P.C.
An experiment was conducted to study the alleviating adverse effect of soil salinity on three wheat varieties through application of zinc fertilizer. Wheat varieties KRL 19, NW 1012 (salt-tolerant) and HD 2285 (salt-susceptible) were grown in pots under non-saline (0, 20 kg Zn) and saline (8.0 dSm-1, 20 kg Zn +8.0 dSm-1) conditions during the rabi seasons. Study revealed that soil salinity adversely affected germination, plant height, number of tiller, number of leaves and leaf area per plant in all the three varieties at the tillering stage. Yield parameters viz., number of ear per plant, number of grain per ear, test weight, economic and biological yields declined significantly. Maximum reduction in these parameters was recorded in the susceptible variety (HD 2285) and minimum reduction in the tolerant varieties (KRL 19 and NW 1012). Zn application @ 20 kg ha-1 partially alleviated the adverse effects of salinity on economic yield with higher response (22.3% increment) in the susceptible variety HD 2285 compared to no application.
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