Mathes, D.T.Gunathilaka, H.A.J.Fernando, D.N.S.2014-06-032014-06-031996Cocos, 11:p.53-68https://dl-cri.nsf.gov.lk//handle/1/3893Statistical MethodsStatistical analusisExperimental errorsIntegrated indexVegetative charactersReproductive charactersReduction of experimental error in coconut with adjustment by an integrated index developped through principal component analysis using vegetative and reproductive characters