瓜類作物化學除草的安全性及效果研究.pdf

1、東北農業(yè)大學碩士學位論文瓜類作物化學除草的安全性及效果研究姓名：宋春雨申請學位級別：碩士專業(yè)：農藥學指導教師：陶波2002.11.16求奮雨東北農業(yè)人學2002AbstractTheresearchontheeffectandsafetyofchemicalweedcontrolforcucurbitsLabandfieldstudieswereconductedtodeterminethetoleranceofmaincu—curbi

2、tscrops—muskmelon，watermelon，cucumber，pumpkin，andsquashtovari—OUSratesandmethodsofapplicationofpendimethalinandacetochlorherbicidesandweedcontroIeffecfinfield1Thedifferenceinthetolerancetotheherbicidesamongcucurbitscrops

3、ThestudyindicatedthaflhereweredifferencesintolerancetotheherbicidesamongcucurbitsWatermelonshadthehigheattoleranceandcucumberhadtheIowestThetoleranceorderisIistedfromhightoIowasfoIlows：watermelonsquashpumpkinmuskmeloncuc

4、umber2ThedifferenceinthelolerancelolheherbicidesamongcultivarsThetolerancestothetwoherbicidesbetweentwomuskmeloncultivars(“FengDu”and“whitebeauty“)weredifferentThe“whitebeauty”muskmelonwasmoretoleranttopendimethalinthan“

5、FengDu”cultivarThe“LongzaN07’’cucumbershowedahighertolerancetothetwoherbicidesingeneralthanthe‘‘QiFeng”cu—cumbercultivaTThetolerancestothetwoherbicidesbetweentwocultivarsofpumpkinweredifferenltooThetoleranceloacetochloro

6、f“N01pumpkin”washigherthan‘‘MeiTai”cultivarAlsothe“MeiTai”pumpkinshowedalittlebithighertolerancetopendimethalinthan“N01pumpkin”cultivar3Thedifferencesinfnhibitionrateondifferentcucurbitsbetweenlwoherbi—cidesResultsshowed

7、thatinhibition1ncreasedwithrateofapplicationofherbicidesincreaseTherewasIittlejniuryofpendimethalinal5ppmon“whitebeauty”muskmelon，”greenfarmN09”watermelon”JinghuN02’1squashand“MeiTai”pumpkinPendimethalinat10ppmwassafeon”

8、greenfarmN09”water—melon，”JinghuN02”squashtoobutnotforothersTherewasmarginallyinjuryofacetochlorat5ppmand10ppmto“greenfarmN09”watermelonand“No1”pumpkinandarelativelyhigherinjuryonthesmallseedvarietiessuchascucumberandmus

9、kmelon4ThedifferencebetweenthevariousapplicationsTheresultsshowedthalthetransplantedmethodshadfewerstandIOSSlhanthetreatmenlonChesurfaceofthesolIafterdirectedseeded5WeedcontrolThetwoherbicideshadagoodeffecConweedcontr01P