Screening of rice lines/varieties against rice blast (Pyricularia oryzae) disease under normal condition of district Bahawalnagar

Abstract

Development of resistant crop varieties is one of the significant tools of integrated pest management (IPM) practices. Screening of rice genotypes is the most effective physical tool for provision of resistant genotypes. In the present experiment, 9 coarse rice lines/varieties and 31 fine rice lines/varieties were sown for assessing their resistance and yield against rice blast disease for two consecutive years (2015 and 2016). During 2015, rice lines KSK 456 and KSK-464 found to be moderately resistant and yielded higher (5.8 t/ha and 5.6 t/ha respectively) as compared to other lines/varieties. During 2016, rice lines KSK 456 and KSK-464 showed good results in terms of resistance to blast and also yield was higher i.e. 5.9 t/ha and 5.7 t/ha  respectively.