Background: Wheat (Triticum aestivum L.) is the most important cereal crop throughout India and other parts of the world. In late sowing conditions the variety selection, seed rate and row spacing is an important factor for a better crop yield. Higher seed rate and narrow row spacing are used in late sowing as compared to normal sowing conditions. Methods: The present field experiment was conducted at the Students Research Farm, Khalsa College, Amritsar, Punjab, India during rabi season of 2020-21. A field experiment was laid out in split-plot design with replicated three times comprising four levels of seed rate viz. (100, 110, 120 and 130 kg/ha) and three-row spacing viz. (12, 15 and 18 cm) of wheat cultivar DBW 187 (Karan Vandana). Result: The result showed that the number of tiller per meter, spike length, grains per spike, test weight, grain, straw and biological yield were significantly affected by different seed rates and row spacing. The seed rate 120 kg/ha recorded significantly higher grain yield (50.47 q/ha), effective tiller per meter row length (70) and the number of grain per spike (58), whereas 130 kg/ha gave significantly higher straw yield (73.40 q/ha). The crop sown with row spacing 18 cm showed significantly higher grain yield (49.13 q/ha), straw yield (72.70 q/ha), biological yield (121.83 q/ha), effective tiller per meter row length (68), spike length (12.10 cm) and number of grain per spike (56.16).
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