Incidence of charcoal rot in sorghum cultivars as affected by sowing date and plant density uri icon

abstract

  • The effects of sowing dates and plant densities on charcoal rot development in sorghum cultivars grown under recedingsoil moisture and natural infection conditions were studied during two postrainy seasons at four locations in India. In both the seasons, maximum charcoal rot infection (as measured by lodging) occurred in the first sowing. Significant (P <0.05) differences were recorded in charcoal rot incidence among the test cultivars, and E 36-1 from Ethiopia was resistant at all locations. High incidence of lodging was recorded even in a population of 133,350 plants ha -1 and this plant density was found to be adquate to quantify genotypic differences in lodging. Lodging was significantly (P < 0.05) correlated with soft stalk, number of nodes crossed, root damage and plant senescence

publication date

  • 1992