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Meannumbersofwhiteflynymphsfoundonthesweetpotatofoliageshowedaninitialsharpincreaseandthenamoregradualincreasewithtimeduringthefirstseason(shortrains)(Fig.2).Inthesecondseason,meannumbersofwhiteflynymphsdecreasedinitiallyandthenincreasedsteadilytopeakinthe11thWAP....顯示更多Meannumbersofwhiteflynymphsfoundonthesweetpotatofoliageshowedaninitialsharpincreaseandthenamoregradualincreasewithtimeduringthefirstseason(shortrains)(Fig.2).Inthesecondseason,meannumbersofwhiteflynymphsdecreasedinitiallyandthenincreasedsteadilytopeakinthe11thWAP.Inthethirdseason,asimilartrendwasrecordedasinthesecondseason.Fewaphidswereobservedinallthethreecroppingcycles(Fig.2).Meannumbersofwhiteflynymphsdifferedsignificantly(Po0:001)amongsquaressurroundingthecentralinoculatedplot,withtheoutersquarehavingmorenymphs,comparedtothemiddleandinnersquaresinthefirstseason.Duringthesecondandthirdseasons,however,themeannumbersofnymphsweresimilarinallthreesquares(Table2).Meannumbersofaphidsdidnotdiffersignificantlyamongthesquaresinthethreeseasons(Table2).3.4.SPVDspreadandpopulationbuild-upofwhiteflies,Inallthreegrowingseason,therewasahigherproportionofSPVD-infectedplants(Po0:05)(Table3)intheinnersquarethanintheoutertwo,whichhadsimilarproportionsofinfectedplants(Fig.5).However,thisdifferenceonlybecameevidentduringthelatterweeksofthegrowingcycle.ThepercentageofplantsdevelopingsymptomsofSPVDeachweekandmeannumberofwhitefliesontrapsisshowninFig.6.Therewasastrongcorrelationbetweenthe%SPVDincidenceandwhiteflynumbers(Pearsoncorrelationcoefficient,0.73,Po0:05)forfirstseason.However,inthesecondandthirdseasonstherewasnosignificantcorrelation.Inthefirstseason,thepercentageofplantsaffectedeachweekgenerallyincreasedwithtime,whileinthesecondseasonitfluctuatedwithtime.Inthethirdseason,numberofaffectedplantscloselyfollowedthatofwhitefliesintheearlyweeks,butlaterthenumberofaffectedplantsincreasedasthenumberofadultwhitefliesdecreased.





whiteflyny mphs 的卑鄙數字發現了在白薯葉子顯示了最初的猛增和然後更加逐漸的增量以時間在第一季節(短的雨) (圖2) 期間。在第二個季節, whiteflyny mphs 的卑鄙數字最初地減少了和然後增加了steadilyto 峰頂在第11 WAP 。在第三個季節, 一個相似的趨向被記錄了和在第二個季節。少量蚜蟲被觀察了在所有三 莊稼循環(圖2) 。whiteflyny mphs 的卑鄙數字不同significantly( Po0:001) 在正方形之中圍攏中央接種了劇情, 用外面正方形有更多若蟲, 與中間和內在正方形比較在第一季節。在第二個和第三個季節期間, 然而, 若蟲的卑鄙數量在 相似在所有三個正方形(表2) 。蚜蟲的卑鄙數字沒有不同significantlyamon g 正方形在三個季節(表2).3.4 。SPVD 傳播和whiteflies 人口積累,In 所有三生長季節, 有更高的 SPVD 被傳染的植物(Po0:05) (表3)in 的比例內在正方形比在外面二, 有被傳染的植物(圖5) 的相似的比例。但是, 這區別onlybecame 顯然在增長的週期的後者星期期間。植物的百分比開發SPVD 症狀各個whiteflies 的星期和卑鄙數字在陷井被顯示在圖6 。有一種強的交互作用在% 之間SPVD 發生和whiteflynumbers (Pearson 相關系數, 0.73, Po0:05) 為第一個季節。但是, 在第二個和第三個季節沒有重大交互作用。在第一季節, 植物的百分比影響了各星期generallyincrea sed 以時間, 當在第二個季節它動搖了以時間。在第三個季節, 受影響的植物closelyfollowe d 的數字whiteflies 在earlyweeks, 但以後受影響的植物的數量被增加作為成人的數字 whiteflies 被減少。





meannumber應該是中位數的意思


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https://tw.answers.yahoo.com/question/index?qid=20060613000012KK12352

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