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《温度对大豆食心虫卵和幼虫生长发育的影响-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、中国油料作物学报2014,36(2):250—255ChineseJournalofOilCropSciencesdoi:10.7505/j.issn.1007—9084.2014.02.017温度对大豆食心虫卵和幼虫生长发育的影响史树森,崔娟,徐伟,武婷婷,齐灵子,李维宇,宋鹏翔,张萌(吉林农业大学农学院/大豆区域技术创新中心,吉林长春,130l18)摘要:在17~33℃条件下,研究了温度对大豆食心虫卵和幼虫生长发育的影响。结果表明:在试验温度范围内,卵的发育速率与温度呈正相关,模型为:Y=0.61/[1+exp(3.19—0.08t)](F:128.
2、5976,P=0.0077,R:0.9961),发育历期随温度升高而缩短;幼虫期发育速率模型为:Y1⋯=0.10/[1+exp(3.25—0.17t)](F=21.7316,P:0.0440,R:0.9778),其中2龄、3龄幼虫发育速率与温度呈正相关且明显高于其它龄期,33℃条件对1龄和4龄、5龄幼虫的生长发育有抑制作用。温度对大豆食心虫卵孵化率影响不明显,而对各龄幼虫存活率的影响较大,幼虫期对环境温度的适应性随龄期增加而增强。温度影响幼虫的营养积累,在25%条件下老熟幼虫体重为17.26mg,显著高于其它温度。大豆食心虫卵的发育起点温度为7.24℃,
3、有效积温为117.63d·℃;幼虫期发育起点温度为4.7l℃,有效积温为285.33d·qc。关键词:大豆食心虫;温度;发育速率;存活率;有效积温中图分类号:s435.651文献标识码:A文章编号:1007—9084(2014)02—0250—06EfectsoftemperatureongrowthofLeguminivoraglycinivorellaeggsandlarvaSHIShu—sen,CUIJuan,XUWei,wuTing—ting,QILing—zi,LIWei—yu,SONGPeng—xiang,ZHANGMeng(Collegeo
4、fAgriculture,JilinAgriculturalUniversity/InnovationCenterofSoybeanRegionTechnology,Changchun130118,China)Abstract:Inordertoexploretheeffectsoftemperatureondevelopmentofthesoybeanpodborer,Leguminivo—raglycinivorella(Lepidoptera:Olethreutidae),thedevelopmentaldurationandsurvivorshi
5、pofthispestwereinvesti-gatedinthelaboratoryat17,21,25,29and33℃.Theresultsshowedthatthedevelopmentalrateofeggsincreasedwiththeincreasesoftemperaturefroml7℃to33~C.TherelationshipbetweendevelopmentalrateandtemperaturecouldbefittedwellwithLogisticmodel:Y=0.61/[1+exp(3.19-0.08t)](F=12
6、8.5976,P=0.0077,R:0.99611.Developmentalrateoflarvaincreasedwiththeincreasesoftemperaturebelow33oC.The2ndand3rdinstarlarvagrewfasterthantheotherinstars.Whiledevelopmentalrateofthe1st.4thand5thinstarlai'vade-creasedsharplyat33~C.Therelationshipbetweendevelopmentalrateoflarvaandtemp
7、eraturecouldbedescribedbyLogisticmodel:Y=0.10/[1+exp(3.25—0.17t)](F:21.7316,P=0.0440,R=0.9778).Egghatchingratewasinsignificantlyinfluencedbytemperature,butthesurvivalrateoflarvawassignificantlyinflu—encedbytemperature.Theadaptabilityoflarvatoenvironmenttemperaturegraduallyincreas
8、edwiththeinstar.Temperatureaffectedthela
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