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A field experiment was carried out during the rabi seasons of 2016-17 and 2017-18 at Agronomy Farm, S.K.N. Agriculture University, Jobner, Jaipur, Rajasthan, to evaluate the effect of sowing at different thermal regimes and foliar sprays of bio-regulators on growth and yield of wheat. The treatments comprised three sowings (22ºC, 20ºC and 18ºC) and eight bio-regulators (control, water spray, SA @ 100 ppm, SA @ 200 ppm, TSA @ 100 ppm, TSA @ 200 ppm, TGA @ 100 ppm and TGA @ 200 ppm). The experiment was conducted in split plot design with 4 replications. Wheat sown at 20ºC showed superior performance in respect of dry-matter partitioning and yield parameters, i.e. grain, straw biological and yields as compared to sowing at 22ºC and 18ºC. Amongst the bio-regulators options, an application of SA @ 200 ppm resulted in better performance, being comparable with those of TSA @ 200 ppm and TGA @ 200 ppm. Crop sown at 20ºC along with SA @ 200 ppm was found to be a better option for maximum dry matter accumulation and productivity of wheat under heat stress.
Sharma I, Sendhil R. Wheat Production in India—A Decadal Synopsis [Internet]; 2019. Available: http://www.FnBnews.com
Anonymous. Progress report All India Coordinated Wheat and Barley Improvement Project. Directorate of wheat research, Karnal. 2020a;14.
Anonymous. Rajasthan Agriculture Statistics At A Glance. Comissionarate of Agriculture Rajasthan. 2020b;60-61.
Shiferaw B, Smale M, Braun HJ, Duveiller E, Reynolds M, Muricho G. Crops that feed the world 10. Past successes and future challenges to the role played by wheat in global food security. Food Security. 2013; 5:291-317.
Lal R. Climate change mitigation by managing the terrestrial biosphere. In R. Lal et al. (Eds) “Recarbonization of the Biosphere”. Springer, Dordrecht, Holland. 2012;17-39.
Meena VK, Kaushik MK, Meena RS, Meena VS, Meena BP. Effect of growth regulators on clusterbean [Cyamopsis tetragonoloba (L.)] Growth under aravali hills environment in Rajasthan. The Bios. 2014a;9(2):547-550.
Meena VK, Kaushik MK, Kumar RK, Singh M, Meena BP, Meena BL, Meena RK, Kumar U, Kumar S. Influence of growth regulators on nutrient concentrations, nutrient uptake and quality parameters of cluster bean varieties. Leg. Res. 2016; 39(5):797-801.
Hansen J, Sato M, Ruedy R. Perception of climate change. Proc Natl Acad Sci. 2012;109:14726–14727.
Fontana G, Toreti A, Ceglar A, De Sanctis G. Early heat waves over Italy and their impacts on durum wheat yields. Nat. Hazards Earth Syst. Sci. 2015;15:1631–1637.
Mueller B, Hauser M, Iles C, Rimi RH, Zwiers FW, Wan H. Lengthening of the growing season in wheat and maize producing regions. Weather Clim Extrem. 2015;9:47–56.
Raza A, Razzaq A, Mehmood SS, Zou X, Zhang X, Lv Y. Impact of climate change on crops adaptation and strategies to tackle its outcome: A review. Plants. 2019; 8:34.
Meena RS, Yadav RS. Phonological performance of groundnut varieties under sowing environments in hyper arid zone of Rajasthan, India .J. Appl. Sci. Nat. 2014; 6(2): 344-348.
Islam MS, Akhter MM, EL Sabagh A, Liu LY, Nguyen NT, Ueda A. Comparative studies on growth and physiological responses to saline and alkaline stresses of foxtail millet (Setaria italic L.) and Proso millet (Panicum miliaceum L.). Australian Journal of Crop Science. 2011;5:1269.
Kovar M, Brestic M, Sytar O, Barek V, Hauptvogel P, Zivcak M. Evaluation of hyperspectral reflectance parameters to assess the leaf water content in soybean. Water. 2019;11:443.
Sabagh ELA, Omara A, Saneokab H, Islamc MS. Roles of compost fertilizer on nitrogen fixation in soybean (Glycine max L.) under water deficit conditions. Agricultural Advances. 2016;5:340-344.
Meena H, Meena RS, Lal R, Yadav GS, Mitran T, Layek J, Patil SB, Kumar S, Verma T. Response of sowing dates and bio regulators on yield of clusterbean under current climate in alley cropping system in eastern U.P., India. Legume Research. 2017;3759:1-9.
Dadhich RK, Meena RS, Reager ML, Kansotia BC. Response of bio-regulators to yield and quality of Indian mustard (Brassica juncea L. Czernj and Cosson) under different irrigation environments. J. of Applied Sci. and Natur. 2015a;7(1):52- 57.
Dadhich RK, Reager ML, Meena RS, Kansotia BC. Effect of Foliar Spray of Thiourea and Thioglycollic Acid on Mustard (Brassica juncea L.). Bioinf. 2015b;12(1A): 10-13.
Khan MIR, Iqbal N, Masood A, Per TS, Khan NA. Salicylic acid alleviates adverse effects of heat stress on photosynthesis through changes in proline production and ethylene formation. Plant Signal. Behav. 2013;8:e26374.
Meena RS, Meena HR. Role of Bio regulators in Clusterbean (Cyamopsis tetragonoloba L.) Productivity. Ann. Agri Bio Res. 2015;20(1):37-39.
Varma D, Meena RS, Kumar S. Response of mungbean to NPK and lime under the conditions of Vindhyan Region of Uttar Pradesh. Leg. Res. 2017;40(3):542-545.
Janeczko A, Gullner G, Skoczowski A, Dubert F, Barna B. Effects of brassinosteroid infiltration prior to cold treatment on ion leakage and pigment contents in rape leaves. Biologia Plantarum. 2011;51:355−358.
Tripathi N, Verma RS. Influence of late planting on physiological parameters in wheat (Triticum aestivum L.) varieties. CAB Abstracts Pantnagar Journal of Research. 2007;5(1):6-8.
Jat LK, Singh SK, Latare AM, Singh RS, Patel CB. Effect of dates of sowing and fertilizer on growth and yield of wheat (Triticum aestivum) in an inceptisol of Varanasi. Indian Journal of Agronomy. 2013;58(4):611-614.
Kajla M, Yadav VK, Chhokar RS, Sharma RK. Management practices to mitigate the impact of high temperature on wheat. Journal of Wheat Research. 2015;7(1):1-12.
Hayat Q, Hayata S, Irfan M, Ahmad A. Effect of exogenous salicylic acid under changing environment: A review. Environmental and Experimental Botany. 2010;68:14-25.
Babar S, Siddiqi HE, Hussain I, Bhatti HK, Rasheed R. Mitigating the effect of salinity by foliar application of salicylic acid in fenugreek. Physiology Journal. 2014;43: 545-560.
Singh S, Singh H, Choudhary R. Heat stress management in late sown wheat (Triticum aestivum) under climate change scenario. Annals of Agri Bio Research. 2013;18(2):135-138.
Muhal S, Solanki NS. Effect of seeding dates and salicylic acid foliar spray on growth, yield, phenology and agrometeorological indices of Brassica species. Journal of Oilseed Brassica. 2015;6(1):183-190.
Hadiarto T, Tran LS. Progress studies of drought-responsive genes in 14 Plant Stress Physiology rice. Plant Cell Reports. 2011;30:297-310.