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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

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2017, Vol. 5, Issue 2
Antixenosis and antibiosis as a resistance mechanism to Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae) in some maize genotypes

Irham Rasool, Abdul Rouf Wani, Meinaz Nisar, Dr. Zahoor Ahmad Dar, RK Nehru and Barkat Hussain

Twenty four local maize genotypes were screened for resistance/ susceptibility against C. partellus with respect to antixenosis and antibiosis mechanisms. The results revealed that the genotypes CM- 133 and CM-123 were highly resistant with Leaf Damage Score (LDS) of 0.93 and 0.86, respectively, whereas Basi-local was observed extremely susceptible with 8.86 LDS. The overall contribution 88.91 per cent towards the damage of C. partellus was obtained in combination of all significant characters including stem diameter, internodal distance, number of nodes, cob length, leaf length, leaf width and leaf trichome density. Highest phenolic content (antibiosis) of 238.05 and 234.76 μg/g was recorded in highly resistant genotypes CM-123 and CM-133, respectively while as, extremely susceptible genotype Basi-local exhibited lowest phenolic content 117.27 μg/g. Significant and negative correlation was observed between phenol content and leaf damage score at 1 per cent level of significance.
Pages : 22-27 | 857 Views | 51 Downloads
How to cite this article:
Irham Rasool, Abdul Rouf Wani, Meinaz Nisar, Dr. Zahoor Ahmad Dar, RK Nehru and Barkat Hussain. Antixenosis and antibiosis as a resistance mechanism to Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae) in some maize genotypes. 2017; 5(2): 22-27.
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