|Table of Contents|

EffectofDensityonDynamicChangeofLeafAreaIndexandYieldofBrassicacampestris

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年03
Page:
65-69
Research Field:
Publishing date:

Info

Title:
EffectofDensityonDynamicChangeofLeafAreaIndexandYieldofBrassicacampestris
Author(s):
FUBingkun1; SUNMengyao2; WEIMeiman3; CAOZhifu4; WANGQian1
(1.CollegeofHorticulture，ChinaAgriculturalUniversity/BeijingKeyLaboratoryofVegetableGrowthandDevelopmentRegulationinFacilities,Beijing100193；2.BeijingAgriculturalMachineryExperimentAppraisalPopularizeStation,Beijing100079；3.BeijingXiaotangshanGeothermalDevelopmentCompany，Beijing102211；4.BeijingAgriculturalTechnologyExtensionStation，Beijing100029)
Keywords:
Keywords:Brassicacampestris; plantdensity; leafareaindex; singleplantweight; yield
PACS:
-
DOI:
10.11937/bfyy.20182328
Abstract:
Abstract:InordertoprovideatheoreticalbasisfortherationalplantingdensityofBrassicacampestris，theeffectsofdifferentplantingdensities,settingtreatmentsbetweenthedensityof13340,16675,17787,22233plantsper667m2,ondynamicchangeofleafareaindexandyieldofBrassicacampestriswerestudiedinthisexperiment.Theresultsshowedthatthedevelopmenttrendsofleafareaindex，singleplantweightandyieldindifferenttreatmentsallshowedatypical‘S’curve.Thegrowthincreasedslowlyintheearlystage，butitincreasedexponentiallyduring41to51daysaftersowingandshowedasignificantdifferenceinvariousindicators.Afterreachingthehighestpoint，itbasicallyremainedunchangedorevenfallsandthesignificantdifferencebetweenitstreatmentsdisappeared.Withtheincreaseofplantingdensity，theplantgainedinyieldandleafareaindex，buttheweightofindividualplantdecreased.Consideringbothsingleplantweightandyield，thesuitableplantinglineofBrassicachinensiswas20cm×20cm(16675plantper667m2)andtheoptimumleafareaindexwas3.

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Last Update: 2019-03-14