INFLUENCE OF HELICOTYLENCHUS MULTICINCTUS ON THE CHLOROPHYLL CONTENT, PHOTOSYNTHETIC RATE AND ROOT ACTIVITY IN RICE

M. N. Dutta, S. K. Nayak, J. S. Prasad

Abstract


Changes in total chlorophyll content, photosynthetic rate and root activity as influenced by the spiral nematode, Helicotylenchus multicinctus have been estimated. In infested plants the total chlorophyll content was reduced by 1.06, 49.26 and 28.73 %, the photosynthetic rate by 1.1, 5.6 and 10.2 % and the root activity by 26.14, 16.14 and 8.99% respectively in 15,25 and 35 days oId seedlings in comparison to control.

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