Resistance Mechanism Exhibited by Selected Maize Varieties to Asian Corn Borer Ostrinia furnacalis Guenee (Lepidoptera: Crambidae), Philippines

Theresistance mechanisms exhibited by the five selected maize varieties against Ostrinia furnacalis [Gueene] or the Asian corn borer (ACB) were identified and evaluated in the study in terms of the insects’ percent mortality and development. The detached leaf-feeding assay was used in the experiment...

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Main Authors: Karen B. Alviar, Gerald M. Duza, Chester Allan T. Mainem, Gerwin T. Alcalde
Format: Article
Language:English
Published: Universitas Brawijaya 2021-05-01
Series:AGRIVITA Journal of Agricultural Science
Subjects:
Online Access:https://agrivita.ub.ac.id/index.php/agrivita/article/view/2917
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author Karen B. Alviar
Gerald M. Duza
Chester Allan T. Mainem
Gerwin T. Alcalde
author_facet Karen B. Alviar
Gerald M. Duza
Chester Allan T. Mainem
Gerwin T. Alcalde
author_sort Karen B. Alviar
collection DOAJ
description Theresistance mechanisms exhibited by the five selected maize varieties against Ostrinia furnacalis [Gueene] or the Asian corn borer (ACB) were identified and evaluated in the study in terms of the insects’ percent mortality and development. The detached leaf-feeding assay was used in the experiment and laid out in Complete Randomized Design (CRD) with 5 treatments and replicated three times. Findings among the five selected maize varieties tested against ACB, Bt corn had exhibited a high degree of antibiosis mechanism. This was expected because of the Bt toxin from the maize variety conferring toxicity to Lepidopterous insect pests like ACB. A similar result with Variety 4 (Yellow Dent corn) was observed which shows a high degree of antibiosis mechanism that is innate within the maize leaves of the variety. Variety 1 (UPLB Lagkitan), Variety 2 (Yellow corn), and Variety 3 (White corn) show high susceptibility to ACB. Tolerance of the corn varieties to ACB needs to be further investigated because it is unknown to date whether the varieties possess or lack plant tolerance characteristics. Leaf whorl feeding assays used in the study only measure the antibiosis and antixenosis mechanisms in maize. Furthermore, a test to measure tolerance mechanisms is suggested among the maize varieties.
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spelling doaj.art-0c9747b54fa146559946bb6ad9f280072022-12-21T22:41:12ZengUniversitas BrawijayaAGRIVITA Journal of Agricultural Science0126-05372477-85162021-05-0143239039710.17503/agrivita.v43i2.2917599Resistance Mechanism Exhibited by Selected Maize Varieties to Asian Corn Borer Ostrinia furnacalis Guenee (Lepidoptera: Crambidae), PhilippinesKaren B. Alviar0Gerald M. Duza1Chester Allan T. Mainem2Gerwin T. Alcalde3University of the Philippines Los BanosUniversity of the Philippines Los BanosUniversity of the Philippines Los BanosUniversity of the Philippines Los BanosTheresistance mechanisms exhibited by the five selected maize varieties against Ostrinia furnacalis [Gueene] or the Asian corn borer (ACB) were identified and evaluated in the study in terms of the insects’ percent mortality and development. The detached leaf-feeding assay was used in the experiment and laid out in Complete Randomized Design (CRD) with 5 treatments and replicated three times. Findings among the five selected maize varieties tested against ACB, Bt corn had exhibited a high degree of antibiosis mechanism. This was expected because of the Bt toxin from the maize variety conferring toxicity to Lepidopterous insect pests like ACB. A similar result with Variety 4 (Yellow Dent corn) was observed which shows a high degree of antibiosis mechanism that is innate within the maize leaves of the variety. Variety 1 (UPLB Lagkitan), Variety 2 (Yellow corn), and Variety 3 (White corn) show high susceptibility to ACB. Tolerance of the corn varieties to ACB needs to be further investigated because it is unknown to date whether the varieties possess or lack plant tolerance characteristics. Leaf whorl feeding assays used in the study only measure the antibiosis and antixenosis mechanisms in maize. Furthermore, a test to measure tolerance mechanisms is suggested among the maize varieties.https://agrivita.ub.ac.id/index.php/agrivita/article/view/2917antibiosisantixenosisasian corn borer (acb)corntolerance
spellingShingle Karen B. Alviar
Gerald M. Duza
Chester Allan T. Mainem
Gerwin T. Alcalde
Resistance Mechanism Exhibited by Selected Maize Varieties to Asian Corn Borer Ostrinia furnacalis Guenee (Lepidoptera: Crambidae), Philippines
AGRIVITA Journal of Agricultural Science
antibiosis
antixenosis
asian corn borer (acb)
corn
tolerance
title Resistance Mechanism Exhibited by Selected Maize Varieties to Asian Corn Borer Ostrinia furnacalis Guenee (Lepidoptera: Crambidae), Philippines
title_full Resistance Mechanism Exhibited by Selected Maize Varieties to Asian Corn Borer Ostrinia furnacalis Guenee (Lepidoptera: Crambidae), Philippines
title_fullStr Resistance Mechanism Exhibited by Selected Maize Varieties to Asian Corn Borer Ostrinia furnacalis Guenee (Lepidoptera: Crambidae), Philippines
title_full_unstemmed Resistance Mechanism Exhibited by Selected Maize Varieties to Asian Corn Borer Ostrinia furnacalis Guenee (Lepidoptera: Crambidae), Philippines
title_short Resistance Mechanism Exhibited by Selected Maize Varieties to Asian Corn Borer Ostrinia furnacalis Guenee (Lepidoptera: Crambidae), Philippines
title_sort resistance mechanism exhibited by selected maize varieties to asian corn borer ostrinia furnacalis guenee lepidoptera crambidae philippines
topic antibiosis
antixenosis
asian corn borer (acb)
corn
tolerance
url https://agrivita.ub.ac.id/index.php/agrivita/article/view/2917
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