Milk stage kernel infection frequency and its relationship with grain mold development in sorghum
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Keywords:Fusarium, Curvularia, Alternaria, Bipolaris, milk stage infection frequency, correlation
Field experiments were conducted with four popular grain sorghum cultivars that included two varieties and twoÂ hybrids during two successive rainy seasons 2012 and 2013 at Hyderabad to quantify natural infection at milkÂ stage kernel of popular sorghum cultivars and lists fungal genera associated with it. Further, the role of earlyÂ seed infection on grain mold severity was decided. The study reports natural frequency of fungal infection andÂ fungal diversity at milk stage kernel of sorghum. Frequency of natural infection was about 25%. Four differentÂ fungal genera were recovered from milk stage kernel. The genus Fusarium was major (18%) fungus followed byÂ Curvularia (5%), Alternaria (1.3%) and Bipolaris spp. (0.9%). This report shows quantification of infection ofÂ various fungi on milk stage sorghum grain. Frequency of early infection played significant role in deciding grainÂ mold severity on post-maturity sorghum.
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