Antixenosis in Cultivars of Tomato against Helicoverpa armigera (Hubner)

Antixenosis in Cultivars of Tomato against Helicoverpa armigera (Hubner)

This study on the effect of antixenosis in relation to resistance against Helicoverpa armigera in tomato was carried out at the Entomological Research Farm, LPU, Phagwara during 2020 and 2021. The result showed that the antixenosis effect of four tomato cultivars on plant morphological characters re...

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Veröffentlicht in:Indian journal of entomology 2024-08, p.1-4
Hauptverfasser: K., Keshav, K. D., Yendrembam, Yimjenjang Longkumer, I., B., Sumedh, B., Abhinash, G., Anshu, N., Richard
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container_title Indian journal of entomology
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creator K., Keshav
K. D., Yendrembam
Yimjenjang Longkumer, I.
B., Sumedh
B., Abhinash
G., Anshu
N., Richard
description This study on the effect of antixenosis in relation to resistance against Helicoverpa armigera in tomato was carried out at the Entomological Research Farm, LPU, Phagwara during 2020 and 2021. The result showed that the antixenosis effect of four tomato cultivars on plant morphological characters revealed that Rahul cultivar with maximum trichome density in lamina (181 and 183 cm-2), vein (89 and 93 cm), trichome length (132.43 and 136.21 µm) and leaf lamina thickness (0.21 and 0.23 mm). Correlation analysis between morphological character and larval incidence revealed significant negative correlation with trichome density (lamina and vein), trichome length, leaf area and leaf lamina thickness.
doi_str_mv 10.55446/IJE.2024.1862
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title Antixenosis in Cultivars of Tomato against Helicoverpa armigera (Hubner)
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