The Assessment of Early Blight Resistance in Different Variety of Solanum tuberosum and Biological Management of Early Blight
Abstract
The early blight is a common disease in Potato caused by Alternaria species. The present work focused on two aspects, first one is to evaluate the antagonistic effect of isolated bacterial and fungal species from potato fields of Depalpur, Sanwar and Indore tehsils of Indore district of Madhya Pradesh and other side we have screened the resistant variety against Alternaria species for selected potato fields of Indore district. Isolated Bacterial and fungal species were evaluated against Alternaria species by dual culture technique. Data was collected on radial growth and inhibition of growth. For the screening of the resistant variety against Alternaria species for selected potato fields of Indore district, field visits were conducted and evaluated the morphological observation time to time. We have found all studied species of Trichoderma retarded the growth of A. solani but T. harzianum most strongly suppressed the growth of Alternaria solani and in terms of bacterial species promising antagonists were reported as Pseudomonas fluorescens, Bacillus subtilis. The Percent disease index (PDI) caused by Alternaria species in Potato plants were evaluated in Kufri Chipsona-1, Kufri Chipsona-2, Kufri Jawahar, Kufri Surya in different villages of Indore districts, We reported high Percent disease index in Kufri Chipsona-1 and Kufri Surya followed by Kufri Chipsona-2 but it was recorded lower in Kufri Jawahar.
Keywords: Solanum tuberosum, Kufri Chipsona-1, Kufri Chipsona-2, Kufri Jawahar, Kufri Surya, Early blight resistance
DOI
https://doi.org/10.22270/jddt.v9i4-s.3934References
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