Author (s): K. Akhter1*, F. Begum2, N. Sultana3 and M. A. Hossain4
*Corresponding author, E-mail: khadijaakhter@gmail.com
*Corresponding author, E-mail: khadijaakhter@gmail.com
Abstract
Eight mustard varieties (SAU-1, BINA-6, TORI-7, BARI-9, BARI-6, SOFOL, AGRANI and SS-75) were evaluated for their reaction against Alternaria blight (Alternaria brassicae) under natural condition at the experimental field of Sher-e-Bangla Agricultural University, Dhaka during winter season from November 2007 to February 2008. At 60 days after sowing (DAS) disease severity did not exceed 5% and no symptoms were observed in the siliqua. Results revealed that among the varieties the lowest disease severity was observed in Agrani in all stages of plant growth namely at 60 (1.76%), 75 (5.50%) and 90 DAS (59.10%). Maximum disease severity was found in SAU sarishsa-1 (4.3%) at 60 DAS, 17.20% at 75 DAS and 97.17% at 90 DAS. This result revealed that all varieties of this experiment were highly susceptible to Alternaria blight disease of mustard. In respect of growth contributing characters, highest plant height (141.2 cm) was observed in Agrani and lowest in Tori-7 (103 cm). Similarly, lower number of infected pods (118) and lower percent pod infection were found in Agrani which showed the highest values of all yield attributes and yield (422 g/plot).
Key words: Mustard. Alternaria blight. Disease severity and Yield
J. Expt. Biosci. 3(2): July 2012
Full pdf: PDF
Key words: Mustard. Alternaria blight. Disease severity and Yield
J. Expt. Biosci. 3(2): July 2012
Full pdf: PDF
