Effect of different alfalfa cultivars on growth and development of the spotted alfalfa aphid, Therioaphis trifolii (Monell)
文献类型: 外文期刊
作者: Yu, Liang-bin;Lin, Ke-Jian;Xu, Lin-bo;Wang, Hui;Cui, Jin;Zhang, Quan-yi;Wang, Ya-ping;Yan, Li-ying
作者机构:
关键词: alfalfa;aphid-resistant;life table parameters;Therioaphis trifolii (Monell)
期刊名称: ENTOMOLOGICAL RESEARCH
ISSN: 1738-2297
年卷期: 2022 年
页码:
收录情况: SCIE(2022版)
摘要: Therioaphis trifolii (Monell) is a well-known pest in alfalfa cultivation in China. Individuals of T. trifolii were allowed to feed on 10 alfalfa cultivars and their growth, reproduction, and population life table parameters were estimated. Nymphs that fed on Hunter River had the longest development time, whereas nymphs that fed on Defu had the shortest development time. Adults that fed on Debao, Zhongmu No. 2, and Defu had the shortest development time, whereas adults that fed on Golden Empress and Hunter River had the longest development times. Individuals that fed on Zhungeer produced the greatest number of offspring (13.950), and those that fed on Hunter River produced the fewest offspring (6.000). The survival rate of T. trifolii was the highest on Algonquin and lowest on Hunter River, whereas the survival time was the longest on Golden Empress and shortest on Debao. The population that fed on Algonquin had the highest intrinsic growth rate (0.560) and shortest population doubling time (1.237 days), whereas those that fed on Hunter River had the lowest intrinsic growth rate (0.217) and longest population doubling time (3.194 days). The life table parameters of the experimental T. trifolii population were used to quantify the resistance strengths of the cultivars. Results indicate that the Hunter River cultivar may effectively resist damage from T. trifolii. This study provides a theoretical basis for breeding aphid-resistant alfalfa cultivars, enabling further research into the prevention and control of aphid infestation.
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