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1、884核农学报2009,23(5):884~890JournalofNuclearAgriculturalSciences文章编号:1000-8551(2009)05-884-07辣椒苗期耐热耐湿鉴定方法的研究1,2212211徐小万雷建军罗少波曹必好陈国菊李颖王恒明(1.广东农科院蔬菜研究所,广东广州510640;2.华南农业大学园艺学院,广东广州510642)摘要:以辣椒各生理指标的耐逆系数为衡量辣椒单项耐逆能力大小的指标,用聚类分析法、主成分分析法、隶属函数法对辣椒不同品种(系)耐热耐湿性予以综合评价。综合评价的结果,将10个供试品种(系)按耐热耐湿由强到
2、弱划分为4级:高度耐热耐湿(I)、中度耐热耐湿(G、J、W、H)、不耐热耐湿(C、E、F、K)和极不耐热耐湿(D)。几种关于辣椒品种(系)耐热耐湿综合评价的方法具有较好的一致性,同时利用耐热耐湿性的综合评价值与单项指标间建立的最优回归方程可以预测其他辣椒品种(系)耐热耐湿性大小。关键词:辣椒;苗期;耐热耐湿;鉴定IDENTIFICATIONOFHOTPEPPER(CapsicumannuumL.)SEEDLINGFORHIGHTEMPERATUREANDAIRHUMIDITYRESISTANCE1,2212211XUXiao-wanLEIJian-junLUOS
3、hao-boCAOB-ihaoCHENGuo-juLIYingWANGHeng-ming(11VegetableResearchInstitute,GuangdongAcademyofAgriculturalSciences,Guangzhou,Guangdong510640;21HorticulturalCollege,SouthChinaAgriculturalUniversity,Guangzhou,Guangdong510642)Abstract:Thehightemperatureandairhumidityresistancecoefficiento
4、fsinglecharacterwereusedtovaluethesinglecapabilityofhightemperatureandairhumidityresistanceofhotpeper(CapsicumannuumL.),andthemethodsofclusteranalysis,principalcomponentanalysisandsubordinatefunctionwereusedincomprehensiveevaluationforhightemperatureandairhumidityresistanceofhotpeppe
5、rvarietiesattheseedlingstage.Onthebasisofcorrelationanalysisbetweenthehightemperatureandairhumidityresistanceobtainedfromtheabovecomponentsinvarieties,the10testedvarietiescouldbedividedintofourclassesoftolerance:mosttolerantvarietywasI,followedbyG,J,W,H.LesstolerantwereC,E,F,K.Theres
6、tvarietywasnottolerantatall.Theresultsshowedthattheabovecomprehensiveevaluationmethodsforhightemperatureandairhumidityresistanceofhotpeppervarietiesattheseedlingstagewerewellcoincident.Atthesametime,theevaluationofhightemperatureandairhumidityresistancecouldbeforecastedbyusingthebest
7、regressivefunctionthatwasfoundedbythecomprehensivevalueofhightemperatureandairhumidityresistanceandthevalueofsingleindex.Keywords:hotpepper(CapsicumannuumL.);seedlingstage;hightemperatureandairhumidityresistance;identification辣椒(CapsicumannuumL.)耐逆性的研究已受到(系)耐逆性进行系统评价的研究却未见报道。全球气[1][2
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