Optimizing Pre-Sowing Treatments for the Enhanced Growth, Fruit Yield, and Seed Quality in Abelmoschus esculentus L. Moench

Abstract

This research investigated diverse pre-sowing techniques' impact on the growth, fruit, and seed yield of okra variety Arka Anamika. From fourteen treatments, seven were selected based on germination and vigour index for a subsequent field experiment. The Randomized Block Design trial with three replications revealed significant variations in growth and yield among pre-sowing treatments. The treatment employing PEG (Poly ethylene glycol) 6000-13.5% (-0.25MPa) for 6 hours exhibited the highest germination percentages. Pseudomonas fluorescens-10g/kg of seed also displayed notable performance. Treatment variations were observed in plant height, branches, and flowering timings. The results suggest that in terms of plant growth and flowering time, P. fluorescens was more effective than Trichoderma viride. P. fluorescens -10g/kg of seed, demonstrated superior results in achieving maximum seed yield parameters, ranking highest overall. T. viride-4g/kg of seed, emerged as the second most effective treatment. Recommendations for preserving seed quality included KNO3 2% for 6 hours and PEG 6000-13.5% (-0.25MPa) for 12 hours. Application of biocontrol agents, especially P. fluorescens and T. viride, markedly improved okra variety Arka Anamika's fruit and seed yield characteristics. The study concludes by emphasizing the benefits of biocontrol agents on overall performance and suggesting targeted treatments for optimal seed quality.