不同負載量對桃樹光合作用、生長發(fā)育以及果實品質(zhì)的影響.pdf

1、中國農(nóng)業(yè)大學碩士學位論文不同負載量對桃樹光合作用、生長發(fā)育以及果實品質(zhì)的影響姓名：康艷青申請學位級別：碩士專業(yè)：果樹學指導教師：劉國杰李紹華20060501Abs仃actIntheseexperiments，twocultivarsofpeach(‘Okube’，‘Bayuecui’)wasstudiedwhichⅢsixyearoldnlefruitnmbcrswerethinnedaccordingtothreetreatments

2、：high，middleandlowcroploadAnothorcroploadtreatmentwasondifferentbranchesof‘Okubo’peachwithonefruitortwofruitsLeafphotosyntheticratewasmonitoredforthedifferentgrowthperiodsThetotalsolublesolids，individualfruitweight，yield

3、，thenumberofthewatersproutandtheincrementofthetrunkcircumferenceandbOughscircumferenceweremeasuredwhenthefruitwerepickedTheresultsshowedthat，耽ephotosyntheticratewassignificantlyaffectedbythecroploadThereweresignificantly

4、positivecorrelationsbetweenPnandGsAndsodothePnandEThePnofOkubepeakedwhenThfwas38℃，andthesharplydecreasedwhen1乙rcontinuetoincrease。ItissuggestedthatcriticalTl％fofOkubowas38℃Theyieldandthefruitqualitywelqesignificantlyaffe

5、ctedbythecroploadWhenthecroploadwasincreased，theyieldalsoigcleascdbutthefruitqualitydecreased，theeconomiccoefficientislownIegrowthofthepeachtreeshavesomechangesButtherewasnosigniflcandydifferencesbetweenthetreatmentsbenu

6、tritionstoreof2yenrbrancheshavenosignificantlydifferencesofthetwovarietiesThereweresignificantlydifferencesof1yearbranchesbetweenthehighcroploadandtllelowcropIoadSoitisnecessarytofertilizeandwaterinautumnSoIllatthetreesh

7、avegoodflowerinthenextyearThefruitqualityandtherenovateabilitywereaffectedbythebran【chazimuthandletlgthThebestbranchwasreelinate35—60cmlongwithonefruitSointhepruningweshouldsavemorethesebranchesKeywords：Peach；Cropload；Ph