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1、乌龙茶幼年期性状与产量的相关性研究福建农业19(4):228231,2004FujianJournalofAgri~'tdtut'alfiemes文章编号:1008—0384(2004)04—0228—04乌龙茶幼年期-I生状与产量的相关.I生研究郭吉春,叶乃兴,郭专(福建省农业科学院茶叶研究所.福建福安355000)摘要以中叶类型无性系乌龙茶品种为试验材料.观察分析其幼年期性状与产量的表型,遗传相关.结果表明?i～2龄期自然生长茶树树高,主干直径,分枝数与产量的相关不显着;3龄期自然生长茶树主干直径,分枝数着叶数,定剪枝叶量.4
2、龄期定剪枝叶量,春梢数,5龄期产量等7个性状与5～9龄5a平均产量的表型,遗传相关均显着或极显着.据此提出.上述7个性状可以作为乌龙茶产量早期鉴定与选择的目标性状.对幼年期性状与产量的回归分析表明.3龄期主干直径,3～4龄期定剪枝叶量,5龄期产量与5～9龄5a平均产量呈直线回归关系,而3龄期分枝数,着叶数.4龄期春悄数与5～9龄5a平均产量呈对数回归关系.关键词:乌龙茶;育种;幼年期性状;产量;相关分析:回归分析;早期选择中图分类号:s57i.103文献标识码:ARelativitybetweengrowthcharacterso
3、fyoungteaplantswiththeyieldanditsearlyselectionGUOji—chun.YENai—xing,GUOZhuan(7'"Researt'hInstitute.FujianAtademyofAgritulturalSciences.Fu'an.Fujian355000?China)Abtract:Usingmiddle—leaftypeandasexualOolongteavarietiesasexperimentalmaterials?thephenotypicandgenotypicre
4、lativitiesbetweengrowthcharactersofyoungteaplantsandtheyieldwereobservedandanalyzed.Theresultsshowedthattherelationbetweentheheight.trunkdiameter.branchnumberofnaturallygrowingteaplantsintileist一2ndyearandtheyieldwerenotsignificant;thephenotypieandgenotypicrelativitie
5、samongtrunkdiameter.branchnumber.1eafnumberofnaturallygrowingteaplantsinthe3rdyear.1eaf—branchamountsafterpruningpracticeduringthe3rd一4thyear'Speriod,springsproutnumberteaplantsinthe4thyear.theyieldinthe5thyearwithaveraged5-yearyieldduringthe5th一9thyear'Speriodreached
6、significantorverysignificant.Itwassuggestedthattheabovesevencharacterscouldbeserxredastheobjecti~recharactersforearlyidentificationonteaplantsyieldandvarietyselection.Theregressionanalysisongrowthcharactersandyieldshowedthattherelationbetweentrunkdiameterinthe3rdyear.
7、1eaf—branchnumberafterpruningpracticeinthe4thyearyieldinthe5thyearwithaveraged5-yearyieldandthe5th一9thyear'Speriodwerelinearregression;whereastherelationbetweenbranchnumber.1eafnumber.springsproutnumberwithaveraged5-yearyieldandthe5th一9thyear'speriodwasalogarithmicreg
8、ression.Keywords:Oolongtea;Breeding;Growthcharactersofyoungteaplants;Yield;Relativityanalysis;Regressionanalysis;Earlyselect
