1ICAR Research Complex for Eastern Region, Farming System Research Centre for Hill and Plateau Region, Ranchi - 834 010, Jharkhand, India
Department of Entomology, Odisha University of Agriculture and Technology, Bhubaneswar - 751 003, Odisha, India
*Corresponding author's E-mail: yogeshkumar.hd@gmail.com
Online Published on 29 December, 2021.
The results revealed that the resistant okra germplasm had moderate plant height, less number of leaves, minimum leaf area, thicker leaves, lengthy and dense trichomes, whereas, susceptible germplasm observed with maximum plant height, more number of leaves, maximum leaf area, thinner leaves, short and sparse trichomes. The jassid population was positively correlated with plant height, number of leaves and leaf area with correlation coefficient value (r) of 0.994**, r = 617 and r = 0.995**, respectively. However, leaf thickness, trichome length and trichome density exhibited negatively correlation with jassid population (r = -0.998**, r = -0.965** and r = -0.978**, respectively). The okra germplasm BBSR-37, BBSR-36, Pusa A-4, BBSR-57 and BBSR-3 were resistant to leafhopper whereas, BBSR-4 being moderately resistant, BBSR-09-6 moderately susceptible, BBSR-53 and Pusa Sawani were found to be susceptible.
Jassid, Leafhopper, Leaf thickness, Okra, Trichome density, Trichome length
