Vol. 11, Issue 9 (2022)

Author(s):
Harmeet Singh and Rashpal Singh Sarlach

Abstract:
A field experiment was carried out at Agricultural Research Farm, School of Agricultural Sciences and Technology, RIMT University, Mandi Gobindgarh (Punjab) during the rabi 2021-22 to study the effect of seeding rate on growth and yield of barley (Hordeum vulgare L.). The treatments comprised of two varieties viz. DWRUB 52 and PL 426 and four seeding rate viz.75, 87.5, 100, 112.5 kg ha^-1. The experiment was laid out in randomized complete block design (RCBD) with three replications. Variety DWRUB 52 produced significantly taller plants (93.91 cm), more tillers per meter row length (83.53), spike per meter row length (118.69), spike length (7.32 cm), test weight (42.13 g) over PL 426 whereas, the variety PL 426 have more grains per spike (42.72), grains weight per spike (1.49 g) over DWRUB 52. However grain yield, straw yield, biological yield and harvest index were significantly higher in variety DWRUB 52 (39.64 q ha^-1) than PL 426 (31.97 q ha^-1). The 100 kg seed rate ha^-1 significantly produced taller plant height (94.34 cm), spike length (7.72 cm) over 75 kg seed rate ha^-1, whereas 112.5 kg seed rate ha^-1 produced significantly higher tillers per meter row length (81.83), spike per meter row length (113.27) over the 75 kg seed rate ha^-1 but at par with 100 kg and 87.5 kg seed rate ha^-1. The 75 kg seed rate ha^-1 have significantly highest test weight (42.08 g), number of grains (34.57) over 112.5 kg seed rate ha^-1 but at par with 87.5 kg and 100 kg ha^-1. Similarly the significant higher grain yield was observed with 112.5 kg ha^-1 (40.47 q ha^-1) than 75 kg (28.67 q ha^-1) and 87.5 kg (34.87 q ha^-1) seed rate ha^-1 but at par with 100 kg seed rate ha^-1 (39.22 q ha^-1). The interaction between varieties and seed rate was found to be non-significant in all growth parameters, yield attributes and yield.