Data/hora: 03/06/2024 08:31:46

Provedor de dados: | Horticultura Brasileira
País: | Brazil
Título: | A new method for estimating the leaf area index of cucumber and tomato plants
Autores: | Blanco,Flávio Favaro; Folegatti,Marcos Vinícius.
Data: | 2003-12-01
Ano: | 2003
Palavras-chave: | Cucumis sativus L.; Esculentum Mill.; Greenhouse; Leaf area index.
Resumo: | Non-destructive methods of leaf area measurement are useful for small plant populations, such as experiments with potted plants, and allow the measurement of the same plant several times during the growing period. A methodology was developed to estimate the leaf area index (LAI) of cucumber and tomato plants through the evaluation of the leaf area distribution pattern (LADP) of the plants and the relative height of the leaves in the plants. Plant and leaf height, as well as the length and width of all leaves were measured and the area of some leaves was determined by a digital area meter. The obtained regression equations were used to estimate the leaf area for all relative heights along the plant. The LADP adjusted to a quadratic model for both crops and LAI were estimated by measuring the length and width of the leaves located at the relative heights representing the mean leaf area of the plants. The LAI estimations presented high precision and accuracy when the proposed methodology was used resulting in time and effort savings and being useful for both crops.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362003000400019
Editor: | Associação Brasileira de Horticultura
Relação: | 10.1590/S0102-05362003000400019
Formato: | text/html
Fonte: | Horticultura Brasileira  v.21 n.4 2003
Fonte: | info:eu-repo/semantics/openAccess