| Autor: |
Mishra, D. N., Gangwar, R. K., Dash, A., Thorat, S. S. |
| Předmět: |
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| Zdroj: |
Agriways; Dec2021, Vol. 9 Issue 2, p106-109, 4p |
| Abstrakt: |
Rice production and productivity is affected due to several biotic and abiotic stresses. Among the major biotic stresses blast disease of rice caused by Pyricularia oryzae has the potential to causes annually yield loss as high as 70-80% when pre-disposing factors favour epidemic development. The use of resistant cultivars is the most cost-effective and ecofriendly method for managing the disease. The present study was carried out for the screening of rice genotypes against P. oryzae. A total number of 48 genotypes showed multiple disease resistance during previous years experiments were selected and evaluated against the leaf blast of rice. The screening was carried out under artificial inoculation conditions in the field by adopting uniform nursery pattern. The result showed that out of 48 rice genotypes, none of the genotype found immune towards the disease. Whereas six genotypes were showed resistant reaction, nineteen genotypes were showed moderately resistant reaction and seventeen genotypes showed moderately susceptible reaction and six genotypes including susceptible check P-203 and TN-1 were showed susceptible reaction. The consistent resistant reactions found in six genotypes viz., NWGR-12016, 13055, 13087, 14005, 14035 and 14059 against blast disease. These genotypes can be used in breeding programme for developing the blast resistant varieties. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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