Assessment of the response of fifteen cowpea [<i>Vigna unguiculata</i> L. (Walp.)] genotypes to infestation by <i>Callosobruchus maculatus</i> Fab. (Coloeptera: Bruchidae)

Nyarko, Jackson; Asare, Aaron T.; Mensah, Benjamin Adjei; Adjei, Francis

doi:10.1080/23311932.2022.2095713

Cited by 2 publications

(2 citation statements)

References 23 publications

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“…Wild Vigna species such as V. luteola , V. vexillata and V. reticulata are also considered resistant to weevil [ 273 ]. Two landraces were also identified by Nyarko et al [ 239 ] to present weevil resistance ( Table 5 ).…”

Section: Cowpea Plant Genetic Resources For Main Productivity Constra...mentioning

confidence: 87%

“…Koch, 1854), thrips ( Megalurothrips sjostedti Trybom, 1908), green stink bugs ( Nezara viridula Linnaeus, 1758) and cowpea weevils ( Callosobruchus maculatus Fabricius, 1775). In Africa, Maruca vitrata (Fabricius, 1787), is one of the most serious pests, causing tremendous losses [ 238 , 239 ], while in Europe, cowpea weevils and aphids constitute the main insect pests. Nematodes also seriously affect cowpea plants worldwide including Europe [ 240 ], leading to nutrient deficiencies and stunting or wilting; thus, the root system is incapable of absorbing adequate amounts of water and mineral nutrients.…”

Section: Cowpea Plant Genetic Resources For Main Productivity Constra...mentioning

confidence: 99%

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Cowpea Constraints and Breeding in Europe

Lazaridi

Bebeli

2023

Plants

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Cowpea (Vigna unguiculata (L.) Walp.) is a legume with a constant rate of cultivation in Southern European countries. Consumer demand for cowpea worldwide is rising due to its nutritional content, while Europe is constantly attempting to reduce the deficit in the production of pulses and invest in new, healthy food market products. Although the climatic conditions that prevail in Europe are not so harsh in terms of heat and drought as in the tropical climates where cowpea is mainly cultivated, cowpea confronts with a plethora of abiotic and biotic stresses and yield-limiting factors in Southern European countries. In this paper, we summarize the main constraints for cowpea cultivation in Europe and the breeding methods that have been or can be used. A special mention is made of the availability plant genetic resources (PGRs) and their potential for breeding purposes, aiming to promote more sustainable cropping systems as climatic shifts become more frequent and fiercer, and environmental degradation expands worldwide.

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Section: Cowpea Plant Genetic Resources For Main Productivity Constra...mentioning

confidence: 87%

Section: Cowpea Plant Genetic Resources For Main Productivity Constra...mentioning

confidence: 99%

Cowpea Constraints and Breeding in Europe

Lazaridi

Bebeli

2023

Plants

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Evaluating, Screening and Selecting Yardlong Bean [Vigna unguiculata subsp. sesquipedalis (L.) Verdc.] for Resistance to Common Cutworm (Spodoptera litura Fabricius)

Yao

Jiang

et al. 2023

Agronomy

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The yardlong bean [Vigna unguiculata subsp. sesquipedalis (L.) Verdc.] is an important vegetable crop, but it is prone to pest infestation. Therefore, breeding insect-resistant varieties is essential to reduce pesticide applications and to increase bean quality and yield. In the present study, 64 yardlong bean varieties were screened for their resistance to the common cutworm (Spodoptera litura Fabricius). In the greenhouse, leaves, pods, and seeds of yardlong beans were harmed by naturally occurring common cutworms. Seventeen insect-resistant and four insect-susceptible yardlong bean varieties were identified based on the weight of the nine-day-old larvae and 72 h weight increases of 4th instar larvae through feeding newly hatched and 4th instar larvae, respectively. Subsequent verification feeding experiments with newly hatched larvae showed that Zhuzaidou and Pingtangjiangdou’s insect resistance are the weakest and Jiangdou No.5, j-1, Zhijiangtezao No. 30, and Changcaidou have the strongest insect resistance. In 21 yardlong bean varieties, starch content and larval weight showed negative correlation and there was positive correlation between crude protein and larval weight, but almost neither of them reached significant levels. Through organ antibiotic and antixenotic experiments, it was concluded that common cutworms preferred feeding on yardlong bean leaves, and the weight increase of common cutworms feeding on leaves was higher than that of pods and seeds. These insect-resistant yardlong bean varieties warrant further investigation in basic antibiosis mechanism research in yardlong beans and can serve as germplasm resources for breeding programs engaged in reducing pesticide usage.

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Assessment of the response of fifteen cowpea [Vigna unguiculata L. (Walp.)] genotypes to infestation by Callosobruchus maculatus Fab. (Coloeptera: Bruchidae)

Cited by 2 publications

References 23 publications

Cowpea Constraints and Breeding in Europe

Cowpea Constraints and Breeding in Europe

Evaluating, Screening and Selecting Yardlong Bean [Vigna unguiculata subsp. sesquipedalis (L.) Verdc.] for Resistance to Common Cutworm (Spodoptera litura Fabricius)

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