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Journal of Entomology and Zoology Studies
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ISSN Print: 2349-6800 | ISSN Online: 2320-7078

Journal of Entomology and Zoology Studies

2016, Vol. 4, Issue 2
Study on the response of different maize cultivars to various inoculum levels of Bipolaris maydis (Y. Nisik & C. Miyake) shoemaker under field conditions

Muhammad Altaf, Fazli Raziq, Imran Khan, Hammad Hussain, Bismillah Shah, Waseem Ullah, Ahmad Naeem, Muhammad Adnan, Khwaja Junaid, Syed Rizwan Ali Shah, Attaullah, Mazhar Iqbal

In the present study, the response of three maize varieties viz. Iqbal, Azam, and Jalal to four inoculum levels of Bipolaris maydis (i.e 1.5x104, 3x104, 4.5x104 and 6x104 conidia/ml) and one control was evaluated in a field trial carried out at New Developmental Farm of the University of Agriculture, Peshawar during summer 2013. The experiment was laid out in a split plot design with varieties in the main plot and inoculum levels in the sub-plots. The three maize varieties and different inoculum levels of B. maydis differed significantly (P ≤ 0.05) from one another in all parameters. Similarly, interaction between the maize varieties and pathogen inoculum levels was also significant. Variety Jalal was found to be the most resistant and gave disease severity of 2.00 on a 0-5 scale. This variety registered the maximum plant height (155.07cm), fresh ear weight (1838.8 g), number of grain per ear (381.20), cob length (17.82cm), number of grain rows per cob (12.53), two hundred grains weight (45.78) and grain yield (2506.4 g). The highest inoculum level of B. maydisi.e, 6x104 conidia/ml caused maximum disease severity (3.33) and minimum plant height (145.14 cm), fresh ear weight (1678.8 g), number of grains/ear (335.67), cob length (13.38 cm), number of grain rows/cob (8.88), 200 grains weight (40.08 g) and grain yield/sub-plots (2322.0 g). Similarly, inoculation of variety Iqbal with the highest inoculum level of 6 x 104 conidia/ml resulted in the most severe disease (4.00) and the lowest plant height (141.10 cm), fresh ear weight (1644.0 g), number of grains/ear (329.00). Cob length (10.53 cm), number of grain rows/cob (7.33), 200 grains weight (38.30 g) and grain yield (2259 g).
Pages : 533-537 | 1233 Views | 21 Downloads
How to cite this article:
Muhammad Altaf, Fazli Raziq, Imran Khan, Hammad Hussain, Bismillah Shah, Waseem Ullah, Ahmad Naeem, Muhammad Adnan, Khwaja Junaid, Syed Rizwan Ali Shah, Attaullah, Mazhar Iqbal. Study on the response of different maize cultivars to various inoculum levels of Bipolaris maydis (Y. Nisik & C. Miyake) shoemaker under field conditions. J Entomol Zool Stud 2016;4(2):533-537.
Journal of Entomology and Zoology Studies
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