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ID:52221462
大小:1.25 MB
页数:5页
时间:2020-03-25
《番石榴夏果果实体积生长发育动态观测.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、南方农业学报JournalofSouthernAgricultureISSN2095一l191:CODENNNXAABhttp:Ilwww.nfnyxb.cnDOI:10.3969/j:issn.2095-1191.2015.5.828番石榴夏果果实体积生长发育动态观测曹圣君1,胡子有2+(1海南大学园艺园林学院,海口570228;2广西农业职业技术学院,南宁530007)摘要:【目的】探讨番石榴夏果果实体积生长发育规律,为提高其果实品质和产量提供参考依据。【方法】以5年生珍珠、新世纪番石榴为材料,定期测量其夏果果实的纵
2、、横径,探讨其生长发育规律。【结果】两个品种果实的纵径和横径变化曲线极相似,均呈逐渐上升的变化趋势,其生长发育过程可分为3个生长期,表现“快—慢—快”的单s型动态曲线变化;果实体积净增长高峰期出现在开花后第65~90d(果实成熟期),表明番石榴果实体积在果实生长发育后期增长最快,珍珠、新世纪番石榴属于后期生长发育速度加快的树种。【结论】番石榴开花后40d和第65~90d是其果实膨大、品质和产量形成的关键时期,保证这两个时期有足够的水肥供应,是获得高产优质的关键。关键词:番石榴;果实;生长发育规律中图分类号:$667.9文
3、献标志码:A文章编号:2095—1191(2015)05—0828—05Dynamicobservationofguava’SsummerfruitvolumegrowthanddevelopmentCAOSheng-jun1.HUZi—you2+(1Gardeningcollege,HainanUniversity,Haikou570228,China;2GuangxiAgriculturalVocationalTechnicalCollege,Nanning530007,China)Abstract:【Objecti
4、ve]Thelawsofgrowthanddevelopmentofguava’Ssummerfruitvolumewereinvestigatedtopro-videreferencesforimprovingimprovefruit’Squalityandyield.【Method]Using5一year—old“pearl”and“newcentury”guavasasmaterial,theverticalandhorizontaldiameterofguava’Ssummerfruitwasmeasuredto
5、studythefruitgrowthanddevelopmentrule.【Result]Thediameteranddiametercurvesoffruitsfortwoguavavarietieswereverysimilar,whichpre—sentedagradualupwardtrend.Thegrowthanddevelopmentprocessoffruitweredividedintothreegrowthphases,showingthefast—slow—fastsingleS-shapeddy
6、namiccurve.Thepeakofnetincreaseinthefruitvolumeappearedinthe65“-90“daysafterflowering(frueteseence),whichindicatedthatthefastestgrowthofguavafruitvolumewasinthelatterstageoffruitgrowthanddevelopment.“pearl”and“newcentury”guavasvarietieswerecharacterizedbythefaste
7、stgrowthinthelatterstageoffruitgrowthanddevelopment.【Conclusion】During40daysand65—90daysafterfloweringaretwocriticalperiodsofguavafruitenlargement,qualityandyieldformation.Thereforeaconstantsupplyofenoughwaterandfertilizeristhekeytoensuringhighyieldandgoodquality
8、.Keywords:guava;fruit;growthanddevelopmentlaw0引言【研究意义】番石榴(PsidiumguajavaLillll)别名鸡屎(矢)果,是桃金娘科番石榴属常绿小乔木,原产热带美洲,为热带和亚热带地区广泛种植的水果(肖邦森等,2001),具有结果早、产量高、适应性强,果大、皮薄、
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