Effect of Variable Seed Rates on Crop Growth Rate (CGR) and Seed Yield of different Field Pea (Pisum sativum L.) Genotypes at New Alluvial Zone of West Bengal
International Journal of Bioresource Science
The field experiment was conducted at District Seed Farm, 'A-B' block, of Bidhan Chandra Krishi Viswavidyalaya, Kalyani, Nadia, West Bengal, India, during two subsequent rabi (winter) seasons (November -March) of 2018-19 and 2019-20, to evaluate the growth rate and seed yield of field pea genotypes under varying seed rates at New Alluvial Zone of West Bengal. The experiment was laid out in a split plot design with two different seed rates (80 kg ha -1 & 100 kg ha -1 ) and five different
... s (HUDP 15, SKNP 04-09, IPF 16-13, VL 42, TRCP 8) as primary and subplot factors respectively. Based on pooled data of two-year investigations, higher seed rate treatment (seed rate 100 kg/ha) always recorded a superior growth rate compared to lower seed rate treatment (seed rate 80 kg/ha). Still, contradictorily, lower seed rate recorded higher seed yields. This implies optimum plant population is a crucial practice to obtaining higher seed yield. In the case of variable genotypes, the highest CGR has been observed in SKNP 04-09 genotype during the interval of 60-90 DAS, and the highest seed yield was recorded in the case of IPF 16-13 genotype. The combination of genotype IPF 16-13 and HUDP 15 along with a seed rate of 80 kg/ha are economically profitable options for better production in terms of quality and quantity for cultivation in the New Alluvial Zone of West Bengal. HIGHLIGHTS m Optimum seed rate of field pea is 80 kg/ha for higher yield in a new alluvial zone (NAZ). m Seed rate >80 kg/ha did not assure higher CGR vis-à-vis yield of field pea. m Genotypes, IPF 16-13 and HUDP 15 might be preferred as a suitable variety in NAZ, West Bengal.