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|Title:||Effect of weather variability on Mustard crop|
Jain, A K
|Abstract:||Field experiments were conducted at research farm of IARI, New Delhi to observe the effect of weather variability on mustard crop at different stages of growth. Different varieties of mustard were sown on different dates to generate the different weather conditions for different phenological stages of the crop. All growth parameters, leaf area index, biomass and chlorophyll content were measured in all the varieties under different weather conditions. Observations were also taken for the aphid infestation. Results showed that the leaf area index, biomass and chlorophyll content had less value in November sown crop as compared to October sown crop. This reduces the yield and percentage oil quantity in November sown crop as compared to October sown crop. The aphid infestation was also found to be more in November sown crop as compared to October sown crop because of favourable weather conditions. The temperature was found to be higher during grain filling stage in November sown crop. Therefore, the seed yield was reduced by 15 to 60 per cent in different varieties in November sown crop as compared to October sown crop. The heat unit such as heilo thermal unit, photo thermal unit and GDD was found to be more accumulated in October sown crop as compared to November sown crop. This results in more yield and percentage oil in mustard. Weather has major role in the yield of any crop, therefore, for obtaining maximum yield produce, sowing of any variety of crops can be done after studying the weather parameters.|
|ISSN:||0975-2412 (Online); 0771-7706 (Print)|
|Appears in Collections:||BVAAP Vol.21(1) [June 2013]|
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