TAILIEUCHUNG - Influence of weather parameters on development of Maydis leaf blight of maize caused by Bipolaris Maydis (Nisikado Shoemaker)

A field experiment was conducted at Main Agriculture Research Station, University of Agriculture Sciences, Dharwad, to study the disease development in relation to weather parameters, which clearly depicts the relationship between the weather factors like temperature, relative humidity, rainfall and number of rainy days with the development of the maydis leaf blight of maize. Observations were taken from 31st standard week to 39th standard weeks at weekly interval. The PDI was lowest during 31st standard week ( %) and increased throughout the cropping period. It was peak during last stage that is 39th standard week ( %). During cropping period maximum temperature ranged from 250C (31st standard week) to (35th standard week), minimum temperature from (35th standard week) to 210C (37th standard week), relative humidity (morning) from 91 per cent (35th standard week) to 95 per cent (38th standard week) and relative humidity (evening) from 63 per cent (35th standard week) to 85 per cent (31st standard week). Cumulative weekly rainfall ranged from mm (31st standard week) to mm (39th standard week). No of rainy days ranged from 1 (32nd standard week) to 6 (37th standard week). With respect to weather studies the per cent disease index at weekly intervals were calculated. This was progressing at linear rate as the age of the plant was increasing. Maximum temperature (r = ), minimum temperature (r = ) were not significantly positively correlated with PDI. Morning relative humidity (r = ), evening relative humidity (r = ) and number of rainy days (r = ) were not significantly negatively correlated with PDI. While, the rainfall showed a highly significant positive correlation with PDI. | Influence of weather parameters on development of Maydis leaf blight of maize caused by Bipolaris Maydis (Nisikado Shoemaker)

• Sinh học
• Relative humidity
• Number of rainy days
• Maydis leaf blight
• Bipolaris Maydis
• Nisikado Shoemaker
• Weather parameters on development
• Mycelial growth and sporulation
• Mycelial growth
• Chickpea wilt
• Relative humidity on the growth
• MEMS resonators
• Quality factor
• Gas rarefaction
• Squeeze film damping
• Penicillium islandicum
• Indian gooseberry
• Blue mould rot
• Indian gooseberry (Emblica officinalis Goerth )
• Relative humidity and tea
• Organic condition specific to Assam
• Relation of climatic parameter
• Climatic parameter on tea production
• Linum aretioides
• Pollination behaviour
• Linum aretioides Boiss
• Plants’ life cycles
• Foal behaviour
• Ambient temperature
• Temperature humidity index
• North South housing
• Tenebrio molitor
• Edible insects
• Insects protein
• Development of Tenebrio molitor L
• Influence of temperature
• Softwood grafting
• Relative water content
• Jamun (Syzygium cumini Skeel)
• Softwood grafting in Jamun
• Hurricanes
• Typhoons
• Cyclones
• Potato Blight
• ERH Revisited
• exposure inhibited
• internal factors
• specific plant
• oxidant air pollutants
• increased susceptibility
• Chestnut blight
• Natural dissemination
• Cryphonectria parasitica strain
• Biological control of chestnut blight
• Arboreal plants
• Non arboreal plants
• Pollen grains
• Meteorological parameters
• Pollen concentration
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• Greenhouse climate control
• Global System for Mobile communication
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• Relative humidity of air and soil moisture
• Fruiting and mango
• Different mango varieties
• Central plain zone
• Weather parameters
• Potato dextrose agar medium
• Hypsizygus ulmarius
• Growth and biomass
• Physiological requirement
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• Sucking pests and temperature
• Bt cotton in Buldana district
• Population dynamics
• Sorghum germplasm
• Shoot fly
• Stem borer
• Atherigona soccata (Rondani)
• Chilo partellus
• Chilli Capsicum annuum)
• Alternaria alternata
• Leaf spot
• Fruit rot
• Chilli under natural conditions
• C truncatum
• Sowing dates
• Carbon dioxide and temperature
• Colletotrichum truncatum
• Climate change variables
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• Soil temperature
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• Biometric parameters of okra
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• Oyster mushroom production (Pleurotus Species)
• Abiotic factors
• Temperaturehumidity index
• Physiological indices
• North and south housing