• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Host plant (Ricinus communis Linn.) mediated effects of elevated CO2 on growth performance of two insect folivores
【24h】

Host plant (Ricinus communis Linn.) mediated effects of elevated CO2 on growth performance of two insect folivores

机译：寄主植物（Ricinus communis Linn。）介导的CO2浓度升高对两种昆虫叶片生长性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Elevated atmospheric CO2 expected in the near future as a consequence of increasing emissions will alter the quantity and quality of plant foliage, which in turn can influence the growth and development of insect herbivores. Feeding trials with two foliage feeding insect species, Achaea janata and Spodoptera litura were conducted using foliage of castor plants grown under four concentrations of CO2, viz. 700 ppm CO2 inside open top chamber (OTC), 550 ppm CO2 inside OTC, ambient CO2 (350 ppm) inside OTC and ambient CO2 in the open. Biochemical analysis of foliage revealed that plants grown under elevated CO2 had lower N, and higher C, C/N ratio and polyphenols. Compared to the larvae fed on ambient CO2 foliage, the larvae fed on 700 and 550 ppm CO2 foliage exhibited greater consumption. Larval duration also increased by two days. The 700 and 550 ppm CO2 foliage was more digestible with higher values of approximate digestibility. The relative consumption rate of larvae increased whereas the efficiency parameters, viz. efficiency of conversion of ingested food (ECI), efficiency of conversion of digested food (ECD), and relative growth rate (RGR) decreased in case of larvae grown on 700 and 550 ppm CO2 foliage. The consumption and weight gain of the larvae were negatively and significantly influenced by leaf nitrogen, which was found to be the most important factor affecting consumption and growth of larvae.
机译：由于排放增加，预计不久的将来大气CO2升高会改变植物叶片的数量和质量，进而影响昆虫食草动物的生长和发育。使用在四种浓度的CO2下生长的蓖麻植物的叶子进行了两种叶食昆虫物种Achaea janata和Spodoptera litura的饲养试验。开顶室（OTC）内700 ppm CO2，OTC内550 ppm CO2，OTC内环境CO2（350 ppm）和敞口内CO2。叶子的生化分析表明，在较高的CO2下生长的植物具有较低的N，较高的C，C / N比和多酚。与以环境CO2叶子为食的幼虫相比，以700和550 ppm CO2叶子为食的幼虫消耗量更大。幼虫的持续时间也增加了两天。 700和550 ppm CO2叶子的消化率更高，近似消化率值也更高。幼虫的相对消耗率增加，而效率参数即。如果幼虫生长在700和550 ppm CO2叶子上，幼虫的消化食品转化效率（ECI），消化食品转化效率（ECD）和相对生长速率（RGR）降低。叶片氮对幼虫的消耗和体重增加有负面和显着的影响，这被认为是影响幼虫消耗和生长的最重要因素。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号