Finger millet is widely grown all parts of the world and it is consumed by all people. This paper studies the impact of climate variability on yield of finger millet crop in Tamil Nadu using Panel regression analysis. The data on maximum and minimum rainfall, maximum and minimum temperature and yield of finger millet was collected and used for analysis. Panel data model was used to estimate effect of climate variability. The temperature and its square terms shows the significant impact on finger millet yield, it means after the certain level increase in temperature leads to yield loss. The square term of the SWM maximum temperature will increase the yield of finger millet up to a threshold level, beyond which the yield will decrease. Higher temperature during north-east monsoon season would mean lower yield rates. The regression coefficient of interaction term for NEM rainfall and NEM maximum temperature was found to be positive which indicate that the joint effect of rainfall and temperature during the north-east monsoon season on finger millet yield was positive thus contributing for increased productivity. Thus increasing in climatic variables would support the millets up to a certain level and after that it lower the yield of finger millet.
Aim: The maize is widely grown all parts of the world and it is consumed by all people. This paper studies the impact of climate variability on yield of maize crop in Tamil Nadu using Panel regression analysis.
Study Design: Rainfall (max and min), Temperature (max and min) and yield details were collected from the Indian Meteorological Department and crop production reports respectively used for analysis.
Place and Duration: Tamil Nadu, India.
Methodology: Panel data model was used to estimate crop production functions.
Results and Conclusion: The study focused on the impact of climate variability on yield of maize crop in Tamil Nadu using Panel regression analysis. The high rainfall leads to The effect of NEM rainfall on maize yield is dependent on the level of NEM temperature and vice-versa. This is probably because of the fact that in most of the districts in Tamil Nadu, maize is grown as a rainfed crop in north-east monsoon season with lower temperature and hence increase in temperature together with good amount of rainfall would lead to higher yield of maize.
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