Effect of bioinoculant (Vam) and bioformulations on growth, yield and quality of onion (Allium cepa L.) Var. Arka Kalyan

Abstract

Field experiment on the effect of bioinoculant (VAM) and bioformulations on growth, yield and quality was carried out during Kharif 2015 and Kharif 2016 at Kittur Rani Channamma College of Horticulture, Arabhavi, Karnataka. The experiment was laid out in randomized block design with nine treatments, replicated thrice. Among the nine treatments, maximum plant height (51.07, 52.60 and 51.83 cm), number of leaves per plant (8.00, 10.13 and 9.07), leaf area (82.76, 114.68 and 98.72 cm2), leaf area index (0.55, 0.76 and 0.66), neck thickness (3.95, 5.02 and 4.48 mm) at 90 days after transplanting (DAT) and also higher bulb yield (23.82, 26.08 and 24.95 t ha-1) and quality parameters like TSS (14.05, 13.92 and 13.99 °Brix) and sulphur content (0.381, 0.407 and 0.394 %) were also found higher in T9 which received RDF + Azospirillum brasilense + Azotobacter chrococcum + VAM (1 kg m-2 of nursery bed) + PSB (Pseudomonas striata) + Trichoderma harzianum (2.5%) during 2015, 2016 and in pooled data.