CO2和温度升高对水稻生态系统褐飞虱种群的影响

Q2 Agricultural and Biological Sciences

Proceedings of the National Academy of Sciences, India. Section B Pub Date : 2018-01-01 Epub Date: 2016-04-19 DOI:10.1007/s40011-016-0727-x

G Guru Pirasanna Pandi, Subhash Chander, Madan Pal Singh, Himanshu Pathak

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引用次数: 2

摘要

2013年雨季，在露天室内研究了CO2浓度升高(570±25 ppm)和温度升高(比环境高3℃)对水稻和褐飞虱(BPH)的影响。升高的CO2和温度对BPH增殖有积极的影响，与环境CO2和温度(25.5±2.1)相比，BPH的数量增加了55.2±5.7个/山。升高的CO2 +温度显著降低了成虫寿命和若虫持续时间，分别降低了17.4%和18.5%，而升高的CO2 +温度使BPH繁殖力提高了29.5%。在水稻作物中，CO2和温度升高的交互作用导致分蘖数和冠周长增加20.1%和30.4%，但导致繁殖分蘖数减少10.8%，种子/穗数减少10.9%，千粒重减少8.6%，从而导致籽粒产量减少9.8%。此外，CO2浓度和温度升高对BPH种群的积极影响加剧了伤害(30.6)，进而与植物性状相结合，阻碍了生产。

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

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

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.

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来源期刊

Proceedings of the National Academy of Sciences, India. Section B BIOLOGY-

CiteScore

3.20

自引率

0.00%

发文量

133

审稿时长

6-12 weeks

期刊介绍： The Proceedings of the National Academy of Sciences, India, Section B: Biological Sciences, is one of the oldest journals of India, launched in the year 1930, by the National Academy of Sciences, India (the Oldest Science Academy of India). The research/review papers of different fields of science, e.g. Agriculture Sciences (Agriculture, Animal Husbandry, Fisheries, Forestry, Agric. Toxicology, Soil Science, Plant Protection, Post Harvest Technology, and Agricultural Engineering), Animal Sciences (Structural, Developmental, Functional, Genetical, Ecological, Behavioural, Taxonomical and Evolutionary Aspects), Biochemistry, Biophysics, Biotechnology (including Molecular and Cell Biology, Structural and Functional Studies, Microbiology and Immunology), Medical & Forensic Sciences (Basic and Clinical Medical Sciences, Pharmacology, Anthropology, Psychology and Forensic Sciences, Human genetics, Reproduction Biology, Neurosciences and Molecular Medicine) and Plant Sciences (Structural, Developmental, Functional, Genetical, Ecological, Taxonomical and Evolutionary Aspects), are published in this journal for dissemination of the scientific knowledge and research. The papers published are indexed/abstracted by the leading abstracting agencies of the world. The papers are published after critical review and editing by the eminent experts of the concerned subject area; therefore, the quality publication is assured once the paper is accepted by the learned referees.