福建农业学报2017，Vol.32Issue(2)：195-200,6.DOI:10.19303/j.issn.1008-0384.2017.02.018
空心莲子草及其天敌莲草直胸跳甲对高含量CO2的响应
Responses of Alternanthera philoxeroides and Agasicles hygrophila to Elevated Atmospheric CO2
摘要
Abstract
The growth characteristics of alligator weed,Alternanthera philoxeroides, and the larvae development and adult feeding habit of Agasicles hygrophila under elevated atmospheric CO2were investigated.Three CO2 concentrations,i.e., 420, 550 and 750 μL·L-1, were applied in a closed chamber for the experiment.It was found that A.philoxeroides grew faster at higher CO2 concentrations.On the 42nd day, the heights of the weeds were 35.60 cm and 40.04 cm at 550 μL·L-1 CO2 and 750 μL·L-1CO2, respectively.As compared to that of control (19.83 cm), the weed height was 1.75 times higher under 550 μL·L-1CO2, and two times higher under 750 μL·L-1CO2.In an elevated CO2environment, the leaves of the weeds showed increases on the SPAD, photosynthesis, soluble sugars, and C/N ratio, but decreases on the nitrogen-containing compounds (such as, proteins and amino acids) and the tannin content.When fed on A.philoxeroides under elevated CO2, the weight of A.hygrophila larvae was higher than that of control, while the emerged adults, male or female, appeared to prefer A.philoxeroides grown under 750μL·L-1CO2.关键词
空心莲子草/莲草直胸跳甲/生长特性/营养物质/取食选择性Key words
Alternanthera philoxeroides/Agasicles hygrophila/growth characteristics/nutrients/feeding preference分类
农业科技引用本文复制引用
丁波,史梦竹,李建宇,陈江,周若兰,傅建炜..空心莲子草及其天敌莲草直胸跳甲对高含量CO2的响应[J].福建农业学报,2017,32(2):195-200,6.基金项目
国家自然科学基金项目(31572065) （31572065）
国家重点研发计划(2016YFC1202101) （2016YFC1202101）
福建省科技重大专项(2017NZ0003-1) （2017NZ0003-1）
福建省农业科学院科技创新团队PI项目(2016PI-20) （2016PI-20）
