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EVALUATION OF RICE GENOTYPES FOR RESISTANCE AGAINST BACTERIAL LEAF BLIGHT
Abstract
Assessment of losses in yield and yield components by bacterial leaf blight of 11 rice genotypes viz., PARC-291, PARC-292, PARC-293, PARC-294, PARC-295, PARC-296, PARC-297, PARC-298, PARC-299, PARC-300, PARC-301 were carried out under natural field conditions of Mansehra. Significant differences were observed for all the traits studied. Lowest infection was shown by PARC-301 with a disease scoring of 42.5, minimum and statistically equivalent number of days to 50% heading observed in PARC-294 (79 days), PARC-296 (81.3 days) and PARC-299 (81.3 days), maximum plant height 68.5 cm in PARC-298, maximum 25 tillers in PARC-292, maximum value for spike length showed by PARC-296 (21.6 cm), maximum number of grains in PARC-292 (161.3), PARC-292 and PARC-298 out yielded in straw yield and grain yield with a value of 5.6 kg/plot and 2.567 kg/plot, respectively. The genotypes PARC-298, PARC-299 and PARC-301 showed resistance to bacterial leaf blight and out yielded in grain yield. These genotypes are recommended for general cultivation and further use in breeding programmes.
