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Impacts of Short-term Sequential Stresses on Maize (Zea mays L.) and its Simulation using Info Crop-Maize Model

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Title Impacts of Short-term Sequential Stresses on Maize (Zea mays L.) and its Simulation using Info Crop-Maize Model
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Creator R.K. Fagodiya, S. Naresh Kumar and R. Harit
 
Subject Climatic variability, Crop simulation model, Phenology, Growth, Yield
 
Description Not Available
A field study was conducted with maize during monsoon season to quantify the response
of maize to short-term sequential stresses related to floods and drought. A simulation
analysis was also carried out using the InfoCrop maize model. The treatments of irrigated,
rainfed, drought and four different combinations of sequential stresses (rainfed, irrigation
and drought) at different phases of crop growth were imposed. Silking delayed by about
one week under adequate irrigation regime, as compared to that of rainfed crop, however
moderate drought advanced silking by 10 days. Grain yield was highest at the irrigated
condition. Imposition of sequential stresses RF-D-EW, D-RF-EW, EW-RF-D, D-EW-RF
and MD resulted in 46.7%, 51.7%, 35%, 40% and 63.3% decreased in grain yield
respectively over irrigated condition. The total biomass was decreased with RF-D-EW, DRF-EW,
EW-RF-D, D-EW-RF and MD by 34.7%, 38.3%, 14.9%, 29.1% and 36.9%
respectively. Maize model simulated days to 50% silking well in all situations of multiple
stresses except in case where rainfed crop was exposed to excess water/flooding during
flowering and then to terminal drought. The total dry matter and yield were also simulated
satisfactorily in most of the cases. The InfoCrop maize model worked satisfactorily for
rainfed and irrigated conditions and could be calibrated for the experiemental conditions.
However, refinement is needed from experimentation and model point of view for
simulating the multiple and sequential stress situations
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Date 2018-09-10T10:30:09Z
2018-09-10T10:30:09Z
2017-01
 
Type Research Paper
 
Identifier Fagodiya, R. K., Kumar, S. N., & Harit, R. (2017). Impacts of Short-term Sequential Stresses on Maize (Zea mays L.) and its Simulation using Info Crop-Maize Model. Int. J. Curr. Microbiol. App. Sci, 6(12), 911-921.
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http://krishi.icar.gov.in/jspui/handle/123456789/6657
 
Language English
 
Relation Not Available;
 
Publisher Excellent Publishers