Effect of Seed-Borne Sarocladium Oryzae, the Incitant of Rice Sheath Rot on Rice Seed Quality
Effect of Seed-BorneSarocladium Oryzae, the Incitant of Rice Sheath Rot on Rice Seed QualityRice seeds collected fromSarocladium oryzaeinoculated plants produced more discoloured grain, chaffiness and recorded much lower seed germination than seeds collected from healthy plants in all the three cultivars tested. The germination, chaffiness and discolouration in healthy plants were found to be in the range of 70.50 to 93.50 per cent, 5.5 to 17.75 per cent and 4 to 18 per cent respectively. There was a progressive and significant reduction in total sugar, reducing sugar and non reducing sugar content of rice seeds with varying degree of seed infection caused byS. oryzaeThe increase in phenol content due toS. oryzaeinfection ranged from 15.74 to 70.78 per cent and increase being proportional to the per centS. oryzaeseed infection.