Estimate of leaf area of forage turnip according to leaf dimensions

被引：17

作者：

Cargnelutti Filho, Alberto ^{[1
]}

Toebe, Marcos ^{[2
]}

Burin, Claudia ^{[3
]}

Fick, Andre Luis ^{[3
]}

Casarotto, Gabriele ^{[2
]}

机构：

[1] Univ Fed Santa Maria, CCR, Dept Fitotecnia, BR-97105900 Santa Maria, RS, Brazil

[2] Univ Fed Santa Maria, Programa Posgrad Agron, BR-97105900 Santa Maria, RS, Brazil

[3] Univ Fed Santa Maria, Curso Grad Engn Florestal, BR-97105900 Santa Maria, RS, Brazil

来源：

BRAGANTIA | 2012年 / 71卷 / 01期

关键词：

Raphanus sativus L. var. oleiferus Metzg; digital photos; modeling; non destructive method;

D O I：

10.1590/S0006-87052012000100008

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The objective of this work was build a model to estimate leaf area of forage turnips (Raphanus sativus L. var. oleiferus Metzg) determined by digital photos with the length or width and/or the product lengthxwidth of the leaf. Seventy-six days after sowing of forage turnip, 557 leaves were collected in the main stem of 92 plants. The length (C) and width (L) of each leaf were measured and the product length x width (CxL) calculated. The leaf area (Y) was determined by the method of digital photos. From the total of leaves, 450 leaves were randomly separated to build models of the types quadratic, potency and linear with Y as function of C, L and/or CxL. 107 leaves were used for model validation. The potency model of the leaf area obtained by the method of digital photos ((Y) over cap =0.6843x(0.9221), R-2=0.9862) based on the product length x width is adequate to estimate the leaf area in forage turnip.

引用

页码：47 / 51

页数：5

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