Google
 

Back to Contents

  Pak. J. Bot., 41(1): 329-335, 2009.

FREE FULL TEXT PDF

  Back to Contents
   

 

  Updated: 09-07-09
   

EVALUATION OF RICE GENOTYPES FOR RESISTANCE AGAINST BACTERIAL LEAF BLIGHT

 

M.A. WAHEED1, INAMULLAH2, HABIB AHMAD2*, SIRAJUDDIN3, HAIDAR ALI4, A.Q. KHAN5 AND A. KHAN6

 

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.

 


1Department of Microbiology, Hazara University, Mansehra, Pakistan

2Department of Genetics, Hazara University, Mansehra, Pakistan

3Department of Botany, Islamia College, Peshawar, Pakistan

4Agriculture Research Station, Baffa, Mansehra, Pakistan

5Department of Botany, University of Karachi, Karachi

6Department of Environmental Sciences, Hazara University, Mansehra, Pakistan


   
   

 

   
Back to Contents  

 

  Back to Contents