Yield and nutrient uptake of wheat (Triticum aestivum) varieties under different sowing dates
DOI:
https://doi.org/10.59797/ija.v44i4.3579Keywords:
Wheat varieties, Sowing dates, Nutrient uptake Late-planted wheat crop faces high tem- reduction varies with the varieties. There- perature during grain-filling and ripening fore present study was undertaken to find phases, one of the major causes of poor out the optimum sowing time vis-a-vis a wheat growth and productivity. Tempera- suitable variety for maximum wheat pro- -2- ture cannot be manipulatedeasily under ductivity. field conditions but seeding time can be soAbstract
A field experiment was conducted during the winter (rabi) season of .I99445 and 1995-96 to study the effect of different sowing dates on yield attributes and yield and uptake of major nutrients by 4 varieties, viz. Lok l , Swati, Mangla and GW 173 of wheat (Tritjcum aestivum L. emend. Flori & Paol.) under rice- based cropping system in the eastern Madhya Pradesh. The study showed that sowing of wheat in the first week of December (5 December) was most suitable. Thereafter, yield decreased to 46.2-67.3 kglday with delay in sowing from 5 December to 5 January. Early sowing in the last week of ~ovember (25 November) was also inferior to sowing in the first week of December in the study area. Among the varieties, GW 173 being at par with Lok 1 gave significantly higher grain yield than Swati and Mangla. The uptake of nitrogen, phosphorus and potassium decreased significantly with delay in sowing beyond optimum date.References
Behera. Aswini Kumar. 1994. Response of wheat (Tiiticum aestivum) varieties to sowing date. A-Indian Journal of Agronomy 39 (1) :171-173.
Chapman, H.D. and Pratt, P.F. 1961. Methods oj Analysis for Soils. Plants and Water. Univer-sity of California, California.
Rao, M.H., Sinha, M.N. and Rai, R.K. 180. Effect of dates of sowing and phosphorus levels on whe&* adphoqhomuiiliz&n.~ndian Journal of Agricultural Sciences 50 :503-5 1 1.
Saini, A.D., Dhaliwal, V.K., Phadnawis, B.N. and Nanda, R. 1986. Thermal and photoperiod ef- fect on phase duration of four wheat varieties grown in different sowing dates. Indian Jour- nal ofAgricultura1 Sciences 56 :646-656.
Singh, Vireshwar, Singh, R.P. and Panwar, K.S. 1995. Response of wheat (Triticum aestivum) to seed rate and date of sowing. Indian Journal of Agronomy 40(4) :697656.
Tewari, S.K. and Singh, Mahendra 1993. Yielding ability of wheat (~riticumaestivhn) at differ- ent date of sowing -a temperature dependent performance. Indian Journal of Agronomy 38(2) :204-209.
Tewari, S.K. and Singh, Mahendra. 1995. Influence of sowing date on phase duration and accumu- lation of dry matter in spikes of wheat (Triti-cum aestivum). Indian Journal of Agronomy 40 (1) :4346.
Wiegand, C.L. and Cuellar, J.A. 1981. Duration of grain filling and kernel weight of wheat as af-fected by temperature. Crop Science 21 :95-
