期刊
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
卷 29, 期 4, 页码 2926-2932出版社
ELSEVIER
DOI: 10.1016/j.sjbs.2022.01.021
关键词
Plant-insect interaction; Plant quality; Plant defense; Aphis craccivora; Soil acidity
类别
资金
- Taif University, Taif, Saudi Arabia [TURSP-2020/92]
Soil pH can affect the growth and reproduction of cowpea aphids on bean seedlings. The performance of aphids is worse in a suitable pH range but uniformly low under unfavorable extreme pH conditions, except for the case of pH 8.1 where the best reproduction was observed.
The biotic and abiotic factors including the agricultural implementation can modify soil acidification. We hypothesized that soil pH should as repercussion, alter the plant physiological and physical properties and eventually affect insect herbivores including agricultural pests. This study aimed to evaluate the impact of seven levels of soil pH on the performance of cowpea aphid Aphis craccivora on Vicia faba. Significant relationships between soil pH and growth of host bean seedlings or development and reproduction of the aphid were detected. Data demonstrated significant differences in the total longevity, the pre-reproductive, reproductive, post-reproductive and pre-viviparity periods. Within a suitable range of pH for bean growth between pH 5.3 and pH 7.2, the aphid performance was worse on seedlings growing better, however, under unfavorable extreme pH conditions, plant quality measured as height did not affect the aphids anymore and their performance was uniformly low except the case in pH 8.1 condition in which the best aphid reproduction was observed. The results confirm that soil pH affect the performance of cowpea aphid A. craccivora and also exhibited strong influence on the growth of broad bean plants. (C) 2022 The Author(s). Published by Elsevier B.V. on behalf of King Saud University.
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