The trials were performed out at the Research Farm, College of Agriculture, RVSKVV, Gwalior (M.P.) in 2013-14 and 2014-15. The treatments comprised two sowing dates (timely and late) and five cultivars (HD 4730, HI 8737, MPO 1215, HD 4728, and HI 8498) replicated three times under a spilt-plot design. The primary plot treatments were the dates of sowing, while the sub-plot treatments were the varieties. All packages of practises were implemented in accordance with wheat crop recommendations. Late seeding reduced growth metrics (plant height (cm), number of leaves/25 cm row length, and number of days to maturity) and yield contributing features (length of spike (cm), grain weight of spike (g), number of spikes/m2, and test weight (g). Timely seeded crops outperformed late sown crops in terms of biological yield and HI.HD 4728 had the highest values of growth metrics and yield contributing features, whereas variety HI 8498 had the lowest values. Variety HD 4728 surpassed the rest of the varieties in terms of biological yield and HI. Under timely seeded conditions, the interaction of variety HD 4728 resulted in considerably higher values of biological yield per hectare than the other interactions. Variety HD 4728, which was seeded on time, had the greatest net monetary return and B:C ratio (94767/ha and 4.26, respectively), followed by HI 8737, which was also sown on time.

Date of sowing, Growth characters, Variety, Yield attributes, Yield

Significantly inferior values of growth parameters, yield attributing characters and biological yield were obtained when the crop sown late. Whereas, superior values of same aforementioned characters were obtained when the crop sown on time, it reflects the effect of conducive environmental conditions on the agronomic performance of wheat. Therefore, timely sowing must be done in order to avoid the significant yield loss, along with, variety HD 4728, followed by HI 8737 can be adopted for higher yield and higher net returns.

Neelendra Singh Verma, Sourav Gupta, Dinesh Kumar Kuldeep, Jyoti Kushawah and Sachin Aske (2023). Impact of Different Dates of Sowing on the Growth and Yield of Improved Wheat (Triticum spp.) Varieties in Northern Central India. Biological Forum – An International Journal, 15(11): 55-58.