Effect of Varieties and Nutrient Treatments on Physiological and Phenological Parameters of Summer Greengram (Vigna radiata L.)

The present investigation was conducted during the summer season of 2020 at Regional Research Station (Bawal), CCS Haryana Agricultural University, Hisar to study the response of greengran to different varieties and nutrients treatments. The experiment was laid out in split-plot design with four replications. The main plot consisted of varieties (MH-421, MH-318 and SML-668) and sub-plot consisted of nutrient treatments (Control, 100% recommended dose of fertilizer (RDF), 75% RDF + 25% FYM + Rhizobium + phosphate solubilizing bacteria (PSB), 50% RDF + 50% FYM + Rhizobium + PSB). The findings suggest that variety MH-318 gave significantly higher no. of branches, leaf area, leaf area index (LAI) and leaf area duration (LAD) as well as phenological traits such as days taken to 50% flowering (days) over SML-668 and MH-421. Among the nutrient treatments, application of 75% RDF + 25% FYM + Rhizobium + PSB demonstrated superior performance across physiological (no. of branches, leaf area, LAI and LAD) and phenological traits (50% flowering) over 100% RDF, 50% RDF + 50% FYM + Rhizobium + PSB and control. Thus, a combination of variety MH-318 with 75% RDF + 25% FYM + Rhizobium + PSB helps in enhancing the physiological and phenological parameters of greengram without negative influence on plant and the environment.