Vol. 9, Special Issue 10, Part Q (2025)

The present experiment, entitled “Role of pink pigmented facultative methylotrophic bacteria in promoting growth and yield of Greengram (Vigna radiata L.)” was carried out during Rabi season 2023-24 at the College Farm, College of Agriculture, Rajendranagar, to evaluate the influence of methylotrophic bacteria on the growth and yield of greengram. The study consists of nine treatments arranged in a randomised block design with three replications. Results revealed that seed treatment or foliar application of methylotrophic bacteria did not significantly affect plant height. However, dry matter production and yield components such as number of pods per plant and grains per pod were markedly improved. Among the different treatments, seed treatment combined with foliar spray of 2% PPFM (Pink Pigmented Facultative Methylotrophic bacteria) at flowering and pod formation recorded the highest grain yield (1358 kg ha⁻¹) and haulm yield (2420 kg ha⁻¹). This treatment was statistically on par with seed treatment using 1% PPFM plus foliar application of 1% PPFM at flowering and pod formation, which produced grain and haulm yields of 1282 kg ha⁻¹ and 2245 kg ha⁻¹, respectively. The combined application of 2% PPFM also resulted in maximum gross returns (₹115,430 ha⁻¹) and net returns (₹77,814 ha⁻¹). In contrast, the highest benefit-cost ratio (2.34) was obtained with seed treatment and foliar spray of 1% PPFM.