Effect of Water Logging and CCC on Groundnut [Arachis hypogaea (L.) var. TMV-2]

摘要

The growth and yield of a plant are modulated by a number of abiotic stress factors. Among them, excess water stress i.e., water logging, which occurs due to excess rainfall during late summer and monsoon, is considered as a major determinant of plantproductivity. Groundnut (Arachis hypogaea L.) is the premier oil seed crop of India and contributes nearly 40% of the total oil seed production (Bandyopadyay et al., 2000). In the coastal sandy loams of Andhra Pradesh, groundnut is grown from July to November. Occurrence of heavy rains or cyclones in the months of September-October in this region, which is common leads to the raise of ground water table almost to the surface level and this subsequently leads to water stagnation in groundnut fields. Prolonged water logging condition prevails leads to the set back in vegetative growth of the plant and results in lower yield.