tailieunhanh - Ecofriendly approach of managing onion downy mildew

Onion is one of the largely cultivated vegetable throughout India and grown as kitchen garden crop in Himachal Pradesh. The bulbs as well as seeds of crop are used in a variety of culinary preparations and holds high nutritive and medicinal value. The commercial cultivation of onion is very successful because of its high demand and market value. The major constraint faced in the cultivation of onions is the incidence of biotic and abiotic factors. Among the various factors inflicting gap in production level, downy mildew is one of the most threatening diseases in the state during the crop period causing heavy economic losses. | 2019 8 12 2474-2480 EXCELLENT PUBLISHERS International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 8 Number 12 2019 Journal homepage http Original Research Article https Ecofriendly Approach of Managing Onion Downy Mildew Ankita1 Sunita Chandel1 Manish Kumar2 and Vijay Kamal Meena3 department of Plant Pathology Dr. Y. S. Parmar University of Horticulture Forestry Nauni Solan India department of Seed Science and Technology Dr. Y. S. Parmar University of Horticulture Forestry Nauni Solan India division of Genetics ICAR-Indian Agricultural Research Institute New Delhi India Corresponding author ABSTRACT Keywords Downy mildew Eco-friendly SAR chemicals Botanicals Bioagents Article Info Accepted 17 November 2019 Available Online 10 December 2019 Onion is one of the largely cultivated vegetable throughout India and grown as kitchen garden crop in Himachal Pradesh. The bulbs as well as seeds of crop are used in a variety of culinary preparations and holds high nutritive and medicinal value. The commercial cultivation of onion is very successful because of its high demand and market value. The major constraint faced in the cultivation of onions is the incidence of biotic and abiotic factors. Among the various factors inflicting gap in production level downy mildew is one of the most threatening diseases in the state during the crop period causing heavy economic losses. It is caused by the oomycete Peronospora destructor Berk. Casp. ex Berk. which is one of the severely destructing pathogen that affects the crop at every growth stage. Hence research experiment was carried out at the College of Horticulture DR. YSPUHF Nauni Solan in 2017-18 cropping period to study the effect of SAR chemicals botanicals and biocontrol agents against downy mildew disease of onion. The research experiment was conducted with 16 treatments with three replications. Treatments were .

• Nông nghiệp
• Downy mildew
• Eco friendly
• SAR chemicals
• Managing onion downy mildew
• Ecofriendly approach
• Pearl millet
• Mapping population of pearl millet
• Downy mildew disease incidence
• Virulent downy mildew isolates
• Relative humidity
• Downy mildew of onion
• Epidemiological studies of downy mildew
• Epidemiological factors
• Sorghum downy
• Sorghum downy mildew of maize
• Sorghum downy mildew
• Climatic conditions
• Grown throughout the world
• Systemic acquired resistance
• Reducing maize downy mildew
• Peronoslerospora maydis
• Maize leaves
• Total chlorophyll
• Susceptible hybrids of pearl millet
• Downy mildew resistant
• Variability analysis
• Sorghum downy mildew resistant back cross progenies
• BC3F1 back cross progenies
• Sorghum downy mildew resistant
• MALDI TOF
• Cell cycle
• Maize (Zea mays L )
• Sorghum downy mildew pathogen
• In planta
• Downy mildew isease
• Fungicides and bioagents
• In planta studies
• Downy mildew disease of bittergourd
• Cucumber (Cucumis sativus L )
• Downy mildew in cucumber
• Fungicide mixtures against Pseudoperonospora cubensis
• Quantity of cucumber in countries
• Ridge gourd
• Combining ability
• Earliness and downy mildew disease
• Ridge gourd [Luffa acutangula (Roxb ) L ]
• Heterosis studies for growth
• Yield and downy mildew disease
• Plasmopara viticola
• Symptomatology of grapes downy mildew pathogen
• Grapes downy mildew pathogen
• Per cent incidence ranged
• Grapes growing areas
• Pearl millet cultivar
• Downy mildew incidence
• Flowering stage were surveyed
• Pearl millet growing
• Downy mildew of pearl millet
• Pseudoperonospora cubensis
• Downy Mildew disease
• Downy mildew disease of cucumber
• Fruit quality and yield
• Lagenaria siceraria
• Integrated disease management
• Bottle gourd
• Downy mildew disease in bottle gourd
• Antioxidant activity
• Leaf extract
• Total phenolic content
• Relations between downy
• Powdery mildew diseases
• Phenolic compounds in Vitis spp
• Frequency distribution
• Sorghum downy mildew resistant BC2F1 progenies
• BC2F1 progenies in maize
• Increase the yield
• Progressive selection generations
• BC3F1 progenies in maize
• BC3F1 progenies
• Studies on skewness
• BC3F3 progenies in maize
• BC3F3 progenies
• Yield contributing characters
• Heritability and genetic advance
• Variability parameters studies
• BC3F3 progenies of maize
• Mean performance
• Plant breeding and genetics
• Agronomical trait
• Plant Biology
• Chenopodium quinoa
• Chenopodium album
• Peronospora variabilis
• Quantitative resistance
• Plant genetic resources
• BMC Genomics
• Glyoxalase system
• Glyoxalase II
• System converts cytotoxic methylglyoxal
• D lactate directly
• Back cross progenies
• Maize (Peronoscelrospora sorghi)
• BC3F1 popuation against sorgum down mildew
• Screening of BC3F1
• DOWNY MILDEWS
• PHYTOPHTHORA
• PERONOSPORA
• PERONOSPORALES
• HOMOTHALLIC ISOLATES
• SCLEROSPORALES