Impact of Elevated CO2 and Temperature on Brown Planthopper Population in Rice Ecosystem

被引：21
作者：
Guru Pirasanna Pandi G. [1 ]
Chander S. [1 ]
Singh M.P. [2 ]
Pathak H. [3 ]
机构：
[1] Division of Entomology, Indian Agricultural Research Institute, Pusa Campus, New Delhi
[2] Division of Plant Physiology, Indian Agricultural Research Institute, Pusa Campus, New Delhi
[3] Centre for Environment Science and Climate Resilient Agriculture, Indian Agricultural Research Institute, Pusa Campus, New Delhi
来源：
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences | 2018年 / 88卷 / 1期
关键词：
Basmati rice; Brown planthopper; Climate change; Elevated CO[!sub]2[!/sub; High temperature;
D O I：
10.1007/s40011-016-0727-x
中图分类号：
学科分类号：
摘要：
Influence of elevated CO2 (570 ± 25 ppm) and elevated temperature (≃3 °C higher than ambient) on rice (Oryzasativa L.) and brown planthopper (BPH), Nilaparvata lugens (Stal.) was studied in open top chambers during rainy season of 2013. Elevated CO2 and temperature exhibited positive effect on BPH multiplication thus enhancing its population (55.2 ± 5.7 hoppers/hill) in comparison to ambient CO2 and temperature (25.5 ± 2.1 hoppers/hill). Elevated CO2 + temperature significantly reduced the adult longevity and nymphal duration by 17.4 and 18.5 % respectively, however elevated conditions increased BPH fecundity by 29.5 %. In rice crop, interactive effect of elevated CO2 and temperature led to an increase in the number of tillers (20.1 %) and canopy circumference (30.4 %), but resulted in a decrease of reproductive tillers (10.8 %), seeds/panicle (10.9 %) and 1000-seed weight (8.6 %) thereby reducing grain yield (9.8 %). Moreover, positive effect of increased CO2 concentration and temperature on BPH population exacerbates the damage (30.6) which in turn coupled with the plant traits to hampering production. © 2016, The Author(s).
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页码：57 / 64
页数：7
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