Enhancement of yield by application of salicylic acid in two cotton varieties grown in semi-arid tropics of Nizamabad
Department of Botany, Telangana University, Dichpally, Nizamabad -503322, Telangana, India.
Research Article
Open Access Research Journal of Life Sciences, 2021, 01(02), 001–005.
Article DOI: 10.53022/oarjls.2021.1.2.0107
Publication history:
Received on 02 June 2021; revised on 15 July 2021; accepted on 17 July 2021
Abstract:
The research experiments conducted on the role of salicylic acid (SA) sprayed in three concentrations viz., 0.5 mM, 1.0 mM and 3.0 mM on the yield in terms of buds/plant, flowers/plant, number of bolls/plant, boll weight, fibre length, number of seeds/plant, 100 seed weight and cotton seed oil contents of two varieties of cotton (Gossypium herbaceum L.) viz., Bt- cotton and non-Bt plants grown in the semi-arid tropics of Nizamabad was studied. Nizamabad district soil is known for its salinity and the black soil which is largely responsible for the drought and saline stresses which hampers plant growth and metabolism. Application of three concentrations of SA stimulated the yield of both Bt-cotton and non-Bt cotton varieties. The Bt-cotton variety showed better performance over non-Bt varieties. SA at 3.0 mM conc. was found most effective in increasing the yield of both cotton varieties of over 1.0mM SA, 0.5mM SA applications as well as untreated controls. The enhancement of yield in terms of buds/plant, flowers/plant, number of bolls/plant, boll weight, fibre length, number of seeds/plant, 100 seed weight and cotton seed oil contents in both cotton varieties is an indicator that SA mitigated the negative effect of the semi-arid conditions of the soils in Nizamabad district.
Keywords:
Bt-Cotton; Nizamabad; Non-Bt cotton; Salicylic acid; Yield
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