Vol. 12, Issue 11 (2023)

Author(s):
E Padma, K Uma jyothi, G Ramanandam, P Subbaramamma and K Umakrishna

Abstract:
Currently being conducted is a study with the “Comparison of the performance of Dolichos Bean (Lablab purpureus L.) under open field and shadenet circumstances with varied sowing dates, growth regulators, and their interactions on yield” was carried out during summer at Horticultural Research Station, Ambajipeta, East Godavari District of Andhra Pradesh. The experiment included a Factorial Randomized Block Design (FRBD) with 36 possible treatment combinations, each replicated three times in an open field and beneath a shade net. Using four different varieties-Arka Jay, Arka Amog, Arka Sambhram, and Arka Sowmya and three different planting dates-December 15^th, January 1st, and January 15^th-the experiment was conducted. Foliar sprays of growth regulators-NAA 25 ppm, Triacontanol 2 ppm, and control-were applied to the plants. The yield and quality metrics were collected, and the data were statistically evaluated using ANOVA. In an open field and under a shade net, Arka Sowmya (V4) recorded the significantly greatest leaf area per plant (1065.9 cm² and 770.02 cm², respectively). In open field and under shade net, the January 1^st planting recorded leaf areas of 1028.3 cm² and 870.1 cm2, respectively, whereas Triacontanol 2 ppm recorded leaf areas of 1077.0 cm² and 911.0 cm², respectively, in open field and under shade net. When sowed on January 1st and the plants were sprayed with Triacontanol 2 ppm (V4S2G2) in open field and under shade net (262.12 q and 163.27 q, respectively), Arka Sowmya recorded the highest pod production per ha. Being a crop that prefers light, the field bean responded well in open field as opposed to shade net, producing greater leaf area and pod yield per hectare.