中文摘要：本研究探讨了取食不同抗性和易感水稻品种的褐飞虱种内交互作用的本质。相较于取食易感水稻品种的褐飞虱若虫来说，取食抗性水稻品种IR62的褐飞虱若虫产出的蜜露较少且体重较轻。作者针对抗性水稻IR62和易感水稻IR22上不同褐飞虱若虫的密度开展了一系列生物测定。研究结果表明，即使IR62植株的肥料充足，取食IR62的褐飞虱若虫的取食效率仍较低。褐飞虱在抗性植株上生长发育后，偏向于其雌虫的存活率以及对死亡率的生物量补偿可能会促进种群的恢复，并加快其对抗性品种的适应性。
外文摘要：This study examines the nature of intraspecific interactions among Nilaparvata lugens (Stal) (Hemiptera: Delphacidae) planthoppers feeding on resistant and susceptible rice varieties. Planthopper nymphs produced less honeydew and gained less weight when feeding on rice variety IR62 (resistant) compared to susceptible rice varieties. A series of bioassays was conducted that varied N.lugens nymph densities on IR62 and IR22 (susceptible). Increasing nymph density facilitated feeding by conspecifics; however, intraspecific competition increased mortality of nymphs on IR62 (but rarely on IR22). Furthermore, nymph weights declined with increasing conspecific density on IR22, and the effects were weak on IR62. More female nymphs than males survived on IR62 but this was not affected by density. Nitrogenous fertilizer increased competition among N.lugens on young plants of IR22, but not on IR62. Results indicate that nymphs have a low efficiency in accessing resources when feeding on IR62, even where the plants have received fertilizer. Female-biased survival and biomass compensation for mortality may promote population recovery after development on the resistant plant and accelerate adaptation to the resistant variety.
外文关键词：Bph3 resistance gene；intraspecific competition；facilitation；honeydew；host plant resistance；induced response；Hemiptera；Delphacidae
作者：Horgan, Finbarr G.；Naik, Bhaskar S.；Iswanto, Eko Hari；等
作者单位：悉尼科技大学
期刊名称：ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA
期刊影响因子：1.442
出版年份：2016
出版刊次：3
点击下载：取食抗性和易感水稻品种的褐飞虱对种群密度的反应研究