TAILIEUCHUNG - Oligochitosan as an effective modulator to manage the yield and productivity of onion infected by Alternaria porri

Maharashtra ranks first in production of onion. Purple blotch [Alternaria porri (Ellis) Cif] is one of the severe onion diseases in Maharashtra causing higher yield losses. Chemical fungicides are effectively used to manage it, are responsible for environmental hazard and fungicidal resistance in the pathogens and sustainability of onion production. Oligochitosan is a deacetylated derivative of chitin obtained by gamma irradiation of chitosan. Present study was conducted to assess the effect of oligochitosan on management of purple blotch of onion. The best management of the disease was observed when three sprays of chitosan (oligochitosan) 200 ppm were given at 30, 45 and 60 days after transplanting. The results indicated that there was highest yield in this treatments . t ha-1 as compared to control (water spray) . t ha -1 . The disease intensity was minimum ( PDI) as compared to control treatment (water spray) of PDI as well as in the form of AUDPC values. Thus the study indicated that there was t ha-1 yield improvements in onion with minimum purple blotch disease by foliar application of oligochitosan. Thus it can be used as potential antifungal agent for the management of other diseases in different crops which will help for sustainable agriculture. | Oligochitosan as an effective modulator to manage the yield and productivity of onion infected by Alternaria porri

• Nông nghiệp
• Allium cepa
• Alternaria porri
• Induced disease resistance
• Gamma irradiation
• Alternaria porri
• Chloroform extract
• Allium cepa root chromosomal aberration assay
• Brassica juncea L
• Czern
• Detoxification enzymes
• Diclofop methyl
• Genotoxic effects
• Allium cepa root tip cells
• Plant bioassays
• Acetyl CoA carboxylase
• Sodium metabisulfite
• Food Preservative
• Mitotic index
• Root tip cell of Allium cepa L
• Aggregatum onion
• Allium cepa L
• Review on Aggregatum onion
• Aggregatum onion (Allium cepa L var aggregatum Don )
• Characteristic odour
• Anti mutagenic
• anti carcinogenic
• anti genotoxic activity
• Vietnam Journal of Science and Technology
• In vivo study on ethanolic extract
• Allium cepa on mice
• Evaluate the anti hyperglycemic activity
• Blood glucose level
• cytotoxicity and genotoxic
• Risk assessment
• Synthetic food colorants
• Mitochondrial function
• Zinc oxide nanoparticles
• Titanium dioxide nanoparticles
• Comet assay
• DNA damage
• Phase index
• Aloe vera
• Valuable medicinal plant
• Organic acids
• Organic treatments
• Economic returns
• Poultry manure
• Organic nitrogen management
• Nutrient uptake of onion
• Onion (Allium cepa L
• Purple blotch
• Disease severity
• Severity of purple blotch disease
• Silicon on incidence
• Vegetative growth
• Salicylic acid
• Onion (Allium cepa L )
• Growth and yield of onion
• Rahuri during the rabi season
• Different varieties of onion
• Fourteen varieties
• Field experiment was conducted
• Inorganic fertilizers
• Organic manures
• Bio fertilizers
• Rabi onion (Allium cepa L )
• Integrated nutrient management
• Nutrient uptake
• Economic return of onion
• Levels differential response on yield
• Sulphur sources
• Yield and economics
• Bio fertilizers on yield
• Gibberellic acid and NAA
• Gibberellic acid
• GA3 and NAA
• Yield to different doses of sulphur
• Organic manure
• Various organic manures
• Biofertilizers on growth
• Yield and economics of onion
• Cold storage
• Seed vigor
• Seed longevity of onion (Allium cepa L
• Modified atmospheric packaging
• Seed quality parameters
• Storage conditions
• Packaging materials
• Seed quality
• Commercial cold storage
• Intercropping on purple blotch
• Foliar application
• Rabi onion (Allium cepa L
• Bulb yield attributes of rabi onion
• Micronutrient application
• Seed priming
• Seed priming on plant
• Bulb yield
• Extend up to yield
• Plant growth attributes
• Levels of inorganic fertilizers
• Different organic nutrient sources
• Soil properties in onion
• Available NPK
• NPK Uptake