B型烟粉虱在不同棉花品种上生物学特性和取食行为的分析

《B型烟粉虱在不同棉花品种上生物学特性和取食行为的分析》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、B型炯粉虱在不吲棉花品种上生物学和取食行为研究制。(5)利用扫描电镜对棉花6个品种(系)叶片切面进行了观察，结果表明，GK．12品种的上表皮最厚，与其它五个品种差异极显著(P<0．01)；辽7238品种的下表皮最薄，与其它五个品种差异性极显著(P

2、didae)isoneofthemostdevastatingagriculturalpests．Whichdamagevegetables，omarnentalcrops，andothereconomiccropsThereareseveralbiotypesinthisspecies，amongthemB—biotypeisthemostdevastatingoneanddistributeworldwide．Inourcountry,Bemisiatabacibrokeoutandaggravatedyearly．Theirdamag

3、ewasrampantinlocalareasanditresultedinnoharvest．Bemisiatabacihadbecomeimportantpestoftheeconomiccrops，suchasvegetables，cottonandflowers．Moreover,ithadthedevelopingtrend．Attheconditionofconstanttemperature，wehadstudiedthedevelopment，survivorshipandreproductionandprobingandf

4、eedingbehaviorofB—biotype丑tabaciondifferentcoRonvarieties．Attheend，weexploredtheorganicstructureoftheleavesaboutdifferentcottonvarietiesusethescanelectronmicroscope．Theexperimentresultsandelementaryproductionwereasfollows．Thedevelopment，survivorshipandreproductionfromeggto

5、adultofB—biotype髓tabaciondifferentcottonvarieties(GK-12，AST-104，Zhongmiansuo-19，Liaoyangduomao，zoK一9708，Liao一7238)werestudied．ThedevelopmentaltimeonAST-104wastheshortest，whichontheZhongmiansuo一19wasthelongest，whichwere21．9daysand24．2daysrespectively．Thepercentagewaswhitefl

6、yimmaturesthatsurvivedonLiaoyangduomaowasthehighest，theLiao-7238wasthelowest，whichwere58．3％and250％respectively．Mostfemalesbegantolayeggswithin24“ofemergence，andtheovipersitionalperiodesonthosehostslastedaslongasadultlongevity．Theaveragenumberofeggsdepositedperfemaleswere13

7、8．1(onZhongmiansuo一19，thehighest)，and80．8(onGK一12，thelowest)．Accordingtothedataofbiologyandlife—tableofB-biotypeBtabaci，Theintrinsicratesofnaturalincrease(，m)ofBtabacionLiaoyangduomaoWaSthehighest(O．1121)，theLiao7238wasthelowest(O．0844)．Theresultsshowedthattheseventypesoff

8、eedingwavehadbeenmonitoredaboutB—biotypeBtabaci．TheywereA、C、E、F、G、pdandnpjB型烟粉虱在币同棉花品种上生物