Total leaf area of papaya trees estimated by a nondestructive method

Scientia Agricola

Robson Prucoli Posse²  Elias Fernandes De Sousa¹  Salassier Bernardo¹  Messias Gonzaga Pereira¹  Romildo Domingos Gottardo¹ 

[1] ,UENF CCTA Programa de Pós-Graduação em Produção VegetalCampos dos Goytacazes RJ ,Brasil

关键词: Carica papaya L.;    papaya;    model;    leaf architecture;    biometry;    Carica papaya L.;    mamão;    modelo;    arquitetura foliar;    biometria;   

DOI  :  10.1590/S0103-90162009000400005

来源: SciELO

【 摘 要 】

Leaf area estimation is an important feature in physiological research involving predominantly photosynthesis, transpiration and growth. This study was carried out to develop a practical and nondestructive empirical mathematical model to estimate the area of one leaf and the total leaf area for papaya trees (Carica papaya L.). Two irrigated commercial orchards were evaluated over a period of 50 to 550 days after transplanting, during which the length of the leaf midrib (LM) varied from 0.04 to 0.60 m. A mathematical model was developed to estimate the area of one leaf for the papaya tree, taking into account LM and the age of the plant measured in days after transplanting. The model was considered satisfactory. Based on the average length of the last two leaves of the crown and the total leaf number of the plant, it was possible to satisfactorily estimate the total leaf area of the papaya tree.

【 授权许可】

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