Studies on the Population Fluctuations of Radopholus Similis in Coconut and Arecanut Roots
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1978
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Abstract
Radopholus similis population in coconut and arecanut roots were found to fluctuate between samples, trees, groves, months and years. However, there were definite periods for occurrence of maximum and minimum populations within a year. Highest populations were recorded during October or November and lowest or nil during May to July. Though populations were low during August to September and January to February, they were around the detectable level of 4/g of root. All infested trees within the same field did not record the maximum populations in the same months in a year. Ecological conditions such as rainfall, temperature, and availability of susceptible roots play their own roles in the population build-up but temperature was found to have a more decisive effect as compared to others.
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Indian Phytopathology 1978 v-31 i-2 p-180-185