Foliar application of chitosan and plant probiotic bacteria influencing the growth, productivity and bulb storage life of onion

• DOI: 10.21475/ajcs.23.17.10.p3888
• Publication Date: 2023-11-30T03:20:24Z
• Authors: Tithy Ray; Joydeb Gomasta; Jahidul Hassan; Md. Shamim Hossain; Emrul Kayesh
• Keywords: Bulb; Transplanting; Vegetative reproduction; Phytochemical

Onion having several health promoting phytochemical contents is an important spices in most of the countries world as well vegetables particular and chitosan plant probiotic bacteria are few proven natural growth enhancing agents. Here, three bio-stimulants namely Chitosan (100 200 ppm), Paraburkholderia BRRh-4 (1.5 × 109 CFU mL-1) Clybio (0. 1%) singly combining one another were applied at twelve different treatment combinations including control with aim investigating below above ground vegetative growth, bulb productivity post-harvest storage performance onion cv. “Taherpuri”. The experiment was set up Randomized Complete Block Design (RCBD) maintaining replicates conducted during November 2019 to June 2020 where bio-stimulant formulations sprayed foliage 20, 40 60 days after transplanting (DAT). Reproductive behaviors cultivar differed significantly among treatments those resultants statistically varied performances recorded 30, 90 DAT. @ 100 ppm + (0.1%) combination exhibited statistical superiority over other terms height (53.230 cm), number leaves (10.13/plant), leaf length (41.20 cm) diameter (10.33 mm), roots (32.53/plant), root (12.23 neck (11.20 mm 4.83 cm, respectively) bulbing ratio (0.23) While, shoot didn’t vary earlier stages (at 30 DAT). Again, highest yield (3.36 kg/plot 10.45 t/ha) also obtained from ml-1) treatment. had significant influence on qualities longest shelf life/marketable life (8.17 months) lowest physiological weight loss rotting harvest administered Besides best treatment, produced superior results for development. Therefore, can be judiciously used quality production warm humid areas