Impact of Mancozeb Stress on Seedling growth, Seed Germination, Chlorophyll and Phenolic Contents of Rice Cultivars

The present work was carried out to study the effect of mancozeb on seed germination, seedling length, vigor Index, Chlorophyll a, Chlorophyll b, Total Chlorophyll, electrical conductivity, conductance and phenolic contents. The experiments were carried out for 14 days after soaking the seeds in different concentration of Mancozeb and a control was maintained. A two way analysis of variance showed that the difference in the rate of seed germination and other parameters was statistically significant among different concentration of treatment of fungicide. It was found that concentration of 1, 3, 6 mg has stimulatory effect on seed germination, root length, shoot length, vigour index, chlorophyll and phenolic contents and concentration of 9 and 12mg showed inhibitory effect on germination and other parameters.