D.A. Sunarto, S. Sujak, M. Rizal, B.T. Rahardjo, H. Tarno, N. Nurindah
Climate change employs substantial effects on agroecosystems, particularly the dynamics between plants and herbivores. In response, the adoption of pest-resistant varieties has emerged as a critical strategy within agroecosystems, notably in Indonesia's cotton Integrated Pest Management (IPM). This research focused on evaluating the response of five cotton lines, which adapted to the Indonesian agroecosystem, to the cotton leafhopper (Amrasca biguttula) as a mitigating measure to climate change. Two upland cotton varieties, Tamcot SP 37 (susceptible) and LRA 5166 (resistant), served as standards for susceptibility and resistance to leafhoppers. The study examined leaf morphological characters, specifically trichome density, known to act as oviposition deterrents for leafhopper females, indicative of non-preference resistance. Low damage scores and high leaf trichome density comparable to the resistant variety (LRA 5166) were indicators of notable field resistance in lines 06062/3/3 and 06062/3/4 against A. biguttula during observations that spanned 35 to 105 days post-planting. These findings highlight the potential of these lines as promising cotton varieties, marked by their resilience to A. biguttula, fostering sustainable cultivation practices that address climate change impacts. This study underscores the intricate dynamics between plant-insect interactions and resilience strategies within agroecosystems. © Published under licence by IOP Publishing Ltd.
Research Centre for Horticultural and Estate Crops, National Research and Innovation Agency, Doctoral Program, University of Brawijaya, Indonesia; Research Centre for Horticultural and Estate Crops, National Research and Innovation Agency, Indonesia; Department of Plant Pest and Disease, Faculty of Agriculture, University of Brawijaya, Indonesia
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