Chopra, SandeepSharma, Parul2023-11-102023-11-102023-10-20Sharma, P.2023. Varietal Response of Bio-inoculants for Yield and Biotic Stress Traits in Garden Pea (Pisum sativum L.). M. Sc. Thesis, SKUAST-Jammu, India37088https://krishikosh.egranth.ac.in/handle/1/5810200900The present investigation entitled “Varietal Response of Bio-inoculants for Yield and Biotic Stress Traits in Garden Pea (Pisum sativum L.)” was conducted during the year 2022-23 with the objectives (i) To study the effect of bio-inoculants on growth, yield and quality of various cultivars of pea. (ii) To study the effect of bio-inoculants on nodulation ability in various pea cultivars. (iii) To study the interactive effects of bio-inoculants and varieties on biotic stress traits. The experiment was carried out in Randomized Block Design (Factorial). It comprised of two factors (a) Varieties (P-89, Arka Apoorva and Jammu Pea-1) and (b) Bio-inoculants (Azotobacter, Trichoderma viridae, Pseudomonas fluorescens, Rhizobium leguminosarum and Bacillus subtilis) + Control. Eighteen treatment combinations were taken and replicated three times in 54 plots. The study revealed that minimum days to 50% flowering (73.72), maximum plant height (101.38 cm.), minimum days to marketable green pod maturity (99.11), maximum number of seeds per pod (8.17), maximum pod weight (5.49 g.), maximum number of pods per plant (18.17), maximum green pod yield (128.38 q/ha), maximum productivity index (46.87), maximum TSS content (15.45°Brix), maximum dry matter content (22.13%), maximum protein content (21.74%) and maximum number of nodules per plant (55.35) were recorded in V₃ (Jammu Pea-1). Similarly, maximum internodal distance (6.66 cm.), plant height (101.23 cm.), number of seeds per pod (8.33), pod weight (5.64 g.), number of pods per plant (19.00), green pod yield (128.94 q/ha),productivity index (48.21), TSS content (14.74°Brix), dry matter content (22.58%), protein content (21.95), number of nodules per plant (58.77) and size of nodules (1.87 mm.) were recorded in B₄ (Rhizobium leguminosarum). However, among all the treatment combinations, minimum days to 50% flowering (72.67), maximum internodal distance (7.06 cm.), maximum plant height (111.09 cm.), minimum days to marketable green pod maturity (98.00), maximum number of seeds per pod (9.33), maximum pod weight (6.46 g.), maximum pods per plant (22.00), maximum green pod yield (147.33 q/ha), maximum productivity index (55.71), maximum protein content (23.00%), maximum number of nodules per plant (63.59), highest gross return (₹ 383058), highest net return (₹ 281704) and highest B:C ratio (2.77) were recorded in V₃B₄ (Jammu Pea-1 + Rhizobium leguminosarum).EnglishThesis