
Effect of Bemisia tabaci B Infestation on Growth of Three Cucurbitaceae Host Plants
Xin Liang, Haipeng Zhao, Xia Sun, Yanan Xu, Zhifei Jia, Ming Xue
Chin Agric Sci Bull ›› 2020, Vol. 36 ›› Issue (10) : 133-139.
Abbreviation (ISO4): Chin Agric Sci Bull
Editor in chief: Yulong YIN
Effect of Bemisia tabaci B Infestation on Growth of Three Cucurbitaceae Host Plants
In this study, the effect of Bemisia tabaci B infestation on the growth and development of zucchini, pepo and towel gourd were investigated through measuring the growth indexes and chlorophyll content of these three Cucurbitaceae host plants by ruler measurement, oven drying and spectrophotometry after B. tabaci infestation. The results showed that feeding of B. tabaci B had a significant negative effect on the growth of all the three Cucurbitaceae host plants. After 30 d of infestation, the plant height, stem diameter and leaf area of zucchini all significantly decreased, with an inhibition ratio of 35.08%, 4.38% and 20.73%, respectively, compared with the uninfested plants, and the dry weight was 31.86% lower than that of the control. Plant height of the affected towel gourd significantly reduced compared with that of uninfested control plants, and the inhibition rate was 31.47%, while the stem diameter, leaf area and dry weight of towel gourd were not significantly affected after B. tabaci infestation. Similarly, the stem diameter and dry weight of pepo all obviously decreased compared with that of the control plants, however, the plant height and internode length of pepo increased, with an inhibition rate of -28.69% and -42.63%, respectively. Biochemical assays showed that the leaf chlorophyll content of the three host plants decreased significantly after B. tabaci B infestation, especially the zucchini, of which the chlorophyll a and b content decreased by 68.22% and 64.63%, respectively.
Bemisia tabaci B / Cucurbitaceae / growth indexes / chlorophyll content
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The authors have declared that no competing interests exist.
作者已声明无竞争性利益关系。
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