Validation of Non-destructive Methodology of Grapevine Leaf Area Estimation on cv. Blaufrankisch (Vitis vinifera L.)
Abstract
This paper evaluates the application of a statistical model to estimate leaf surface area in grapevines, expressed as leaf area of an individual leaf as well as total leaf area per shoot, including any lateral shoots. Estimating the area of an individual leaf was based on a formula obtained by regression analysis that uses the sum of length of two inferior leaf veins as an independent variable. To estimate the leaf area per main shoot and per lateral shoot we used the model derived from multiple regression analysis that has the following independent variables: the number of leaves, and surface area of the largest and of the smallest leaf on the shoot. High values of the coefficient of determination (r(2)), as well as satisfactory levels of mean absolute error (MAE), suggest that the applied models appear valid. These results have shown a good fit of observed and predicted values of shoot and lateral leaf areas.
Keywords:
Shoot leaf area / leaf veins / statistical modelSource:
South African Journal of Enology and Viticulture, 2010, 31, 1, 22-25Publisher:
- South African Society For Enology And Viticulture
Collections
Institution/Community
Poljoprivredni fakultetTY - JOUR AU - Bešlić, Zoran AU - Todić, Slavica AU - Tesić, D. PY - 2010 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/2146 AB - This paper evaluates the application of a statistical model to estimate leaf surface area in grapevines, expressed as leaf area of an individual leaf as well as total leaf area per shoot, including any lateral shoots. Estimating the area of an individual leaf was based on a formula obtained by regression analysis that uses the sum of length of two inferior leaf veins as an independent variable. To estimate the leaf area per main shoot and per lateral shoot we used the model derived from multiple regression analysis that has the following independent variables: the number of leaves, and surface area of the largest and of the smallest leaf on the shoot. High values of the coefficient of determination (r(2)), as well as satisfactory levels of mean absolute error (MAE), suggest that the applied models appear valid. These results have shown a good fit of observed and predicted values of shoot and lateral leaf areas. PB - South African Society For Enology And Viticulture T2 - South African Journal of Enology and Viticulture T1 - Validation of Non-destructive Methodology of Grapevine Leaf Area Estimation on cv. Blaufrankisch (Vitis vinifera L.) EP - 25 IS - 1 SP - 22 VL - 31 UR - https://hdl.handle.net/21.15107/rcub_agrospace_2146 ER -
@article{ author = "Bešlić, Zoran and Todić, Slavica and Tesić, D.", year = "2010", abstract = "This paper evaluates the application of a statistical model to estimate leaf surface area in grapevines, expressed as leaf area of an individual leaf as well as total leaf area per shoot, including any lateral shoots. Estimating the area of an individual leaf was based on a formula obtained by regression analysis that uses the sum of length of two inferior leaf veins as an independent variable. To estimate the leaf area per main shoot and per lateral shoot we used the model derived from multiple regression analysis that has the following independent variables: the number of leaves, and surface area of the largest and of the smallest leaf on the shoot. High values of the coefficient of determination (r(2)), as well as satisfactory levels of mean absolute error (MAE), suggest that the applied models appear valid. These results have shown a good fit of observed and predicted values of shoot and lateral leaf areas.", publisher = "South African Society For Enology And Viticulture", journal = "South African Journal of Enology and Viticulture", title = "Validation of Non-destructive Methodology of Grapevine Leaf Area Estimation on cv. Blaufrankisch (Vitis vinifera L.)", pages = "25-22", number = "1", volume = "31", url = "https://hdl.handle.net/21.15107/rcub_agrospace_2146" }
Bešlić, Z., Todić, S.,& Tesić, D.. (2010). Validation of Non-destructive Methodology of Grapevine Leaf Area Estimation on cv. Blaufrankisch (Vitis vinifera L.). in South African Journal of Enology and Viticulture South African Society For Enology And Viticulture., 31(1), 22-25. https://hdl.handle.net/21.15107/rcub_agrospace_2146
Bešlić Z, Todić S, Tesić D. Validation of Non-destructive Methodology of Grapevine Leaf Area Estimation on cv. Blaufrankisch (Vitis vinifera L.). in South African Journal of Enology and Viticulture. 2010;31(1):22-25. https://hdl.handle.net/21.15107/rcub_agrospace_2146 .
Bešlić, Zoran, Todić, Slavica, Tesić, D., "Validation of Non-destructive Methodology of Grapevine Leaf Area Estimation on cv. Blaufrankisch (Vitis vinifera L.)" in South African Journal of Enology and Viticulture, 31, no. 1 (2010):22-25, https://hdl.handle.net/21.15107/rcub_agrospace_2146 .