MODELS FOR NON DESTRUCTIVE DETERMINATION OF THE LEAF AREA OF CUCUMBER GROWN INSIDE A PLASTIC GREENHOUSE
Abstract
The objective of this study was to obtain models to estimate the leaf area of cucumberthrough linear measurements of its leaves. Also, existent models in literature obtained from other placeswere evaluated. The study was carried out during the fali and spring of 2000. The hybrid "Marinda" wasgrown inside a plastic greenhouse in the spacing of 25x 100cm, with plants in a single stem sustained bya plastic thread. The maxim width (L) and the length (C) of leaves were measured, and the leaf area(AF) was determined through the disks method. The models with determination coefficient (R') above0.980 were obtained by the regression analysis. Only some of the existent models in literature showedan acceptable performance. The conclusion was that the leaf area of cucumber may be estimated fromleaf length only.
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