09 فروردین 1403
فريبا سهرابي

فریبا سهرابی

مرتبه علمی: دانشیار
نشانی: دانشکده مهندسی کشاورزی - گروه گیاه پزشکی
تحصیلات: دکترای تخصصی / گیاهپزشکی
تلفن: 09173708661
دانشکده: دانشکده مهندسی کشاورزی

مشخصات پژوهش

عنوان Suitability of Five Tomato Cultivars for Tuta absoluta (Lepidoptera: Gelechiidae): Resistance Is Associated with a High Density of Glandular Trichomes
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
Antibiosis, Host plant resistance, Life tables, Lycopersicon esculentum, Tomato leaf miner
مجله Journal of Agricultural Science and Technology
شناسه DOI J. Agr. Sci. Tech. (2022) Vol. 24(4): 837-846
پژوهشگران محمد علی میر حسینی (نفر اول) ، فریبا سهرابی (نفر دوم) ، جی پی میشاد (نفر سوم) ، مهران رضایی (نفر چهارم)

چکیده

The Tomato Leaf Miner (TLM), Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), is a cosmopolitan tomato pest that has driven a renewed reliance on pesticides in tomato production, negatively affecting biological control of other pests and creating environmental and health hazards. We tested five locally important Iranian tomato cultivars (TD, Karon, Petoprid, Matin, and 8320) for constituitive resistance to TLM by comparing its biological performance and life table parameters under standardized laboratory conditions (27.5±1°C, 65±5% RH, 16 L:8 D hours photoperiod). Survival and developmental rates of immature stages varied significantly among cultivars, as did female fecundity and main parameters of the life table. Karon was most suceptible, affording 90% juvenile TLM survival, the fastest development, and the highest female fecundity, with cultivar 8320 not significantly different in these regards. By contrast, Matin ranked most resistant; i.e. only 59% of larvae survived, and female fecundity was almost halved. TD was the next most resistant, being not significantly different from Matin in these metrics. The intrinsic rates of increase (r), in descending order, were Karon (0.178), 8320 (0.169), TD (0.146), Petoprid (0.138), and Matin (0.111). Matin and TD had the highest densities of glandular trichomes on adaxial leaf surfaces. These findings indicate that the Matin, Petoprid and TD are more resistant than the other cultivars and have potential as one component of an IPM strategy to manage T. absoluta.