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1、中国农业科学2006,39(2):353-360ScientiaAgriculturaSinica温室网纹甜瓜干物质分配、产量形成与采收期模拟研究11,2111123袁昌梅,罗卫红,邰翔,张生飞,金亮,陈永山,卜崇兴,徐刚(12南京农业大学农学院,南京210095;上海市农业科学院上海市设施园艺技术重点实验室,上海201106;3江苏省农业科学院园艺研究所,南京210014)摘要:【目的】建立一个可以预测温室网纹甜瓜产量与采收期的模拟模型,为温室网纹甜瓜生产管理和环境调控的优化提供决策支持。【方法】本研究据温室网纹甜瓜器官生长与温度和辐射的关系,建立了基于分配指数的温室网纹甜瓜干物
2、质分配、产量形成与采收期模拟模型,并利用不同基质的试验资料对模型进行了检验。【结果】2模型对地上部分干重、根干重、茎干重、叶干重、果实干重的模拟结果与1∶1直线之间的R分别为0.99、0.65、0.97、0.98和0.98;预测相对误差分别为0.88%、70.21%、7.44%、9.33%和5.28%。模型对网纹甜瓜果实鲜重的2模拟结果与1∶1直线之间的R为0.94,预测相对误差为8.13%,对网纹甜瓜直径的模拟结果与1∶1直线之间的2R为0.95,预测相对误差为9.23%,对网纹甜瓜采收期的预测误差在±1d内。【结论】与已有的温室作物生长模型相比,本研究建立的模型不仅预测精度较高
3、和功能全面,而且模型参数易获取,具有较强实用性。关键词:网纹甜瓜;干物质分配;产量;采收期;果实直径SimulationofDryMatterPartitioning,YieldFormationandFruitHarvestDateofGreenhouseMuskmelon11,21111YUANChang-mei,LUOWei-hong,TAIXiang,ZHANGSheng-fei,JINLiang,CHENYong-shan,23BUChong-xing,XUGang12(CollegeofAgriculture,NanjingAgriculturalUniversity,
4、Nanjing210095;ShanghaiKeyLaboratoryofProtectedHorticultural3Technology,ShanghaiAcademyofAgriculturalScience,Shanghai201106;HorticulturalInstituteofJiangsuAcademyofAgriculturalSciences,Nanjing210014)Abstract:【Objective】Theaimofthestudywastodevelopasimulationmodeltopredicttheyieldandharvestdateo
5、fgreenhousemuskmelonfortheoptimizationofclimatecontrolandcropmanagementforgreenhousemuskmelonproduction.【Method】Basedontherelationshipsbetweenpartitioningindexandtheaccumulatedproductofthermaleffectivenessandphotosyntheticallyactiveradiation(TEP),adrymatterpartitioning,yieldformationandharvest
6、datesimulationmodelforgreenhousemuskmelonwasdeveloped.ExperimentswithdifferentsowingdatesandsubstrateswerecarriedoutinShanghaiandNanjingtocollectdatatodevelopandvalidatethemodel.【Result】Theresultsshowedthatforshootdryweight,rootdryweight,2stemdryweight,leafdryweightandfruitdryweight,thecoeffic
7、ientofdeterminationRbetweenthesimulatedandthemeasuredvaluebasedonthe1:1linewas0.99,0.65,0.97,0.98,0.98,respectively;andtherelativepredictionerror(RSE)was0.88%,70.21%,27.44%,9.33%,5.28%,respectively.TheRandRSEbetweenthesimulatedandthemea