Effect oflight reduction, surnmerpruning and nitro gen supply on the vegetative and generative growth of 'Golden Delicious' apples
In order to study the effect of a black mesh protection net (33% light reduction capacity) on the vegetative and reproductive growth of 'Golden Delicious' apple trees in Berlin (Germany), three different nitrogen levels and summer pruning at two different times were used. The results of shoots growth, trunk growth, shootlroot ratio, leafarea, early leaffall, numberofflowers perplant, flowers density per branch, fruit set and dry matter production are presented and discussed. In general, shade did not affect vegetative growth, but leaf area and fruit set. Winter pruning induced the greatest number of flowers per plant. Winter pruning along with surnmer pruning in June, increased fruit seto High levels of nitrogen increased number of flowers per plant and shoot growth, but reduced fruit set.
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias
2000
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oai:www.revistas.unal.edu.co:article-215902011-06-28T14:23:50Z Effect oflight reduction, surnmerpruning and nitro gen supply on the vegetative and generative growth of 'Golden Delicious' apples Efecto de la reducción de la luz, la poda de verano y el suministro de nitrógeno sobre el crecimiento vegetativo y reproductivo de los arboles de manzano ‘Golden delicious’ Casierra Posada, Fanor Lüdders, Peter pruning shade fruit set leaf area number of flowers transpiration coefficient poda sombra granizo amarre de frutos área foliar número de flores y coeficiente de transpiración In order to study the effect of a black mesh protection net (33% light reduction capacity) on the vegetative and reproductive growth of 'Golden Delicious' apple trees in Berlin (Germany), three different nitrogen levels and summer pruning at two different times were used. The results of shoots growth, trunk growth, shootlroot ratio, leafarea, early leaffall, numberofflowers perplant, flowers density per branch, fruit set and dry matter production are presented and discussed. In general, shade did not affect vegetative growth, but leaf area and fruit set. Winter pruning induced the greatest number of flowers per plant. Winter pruning along with surnmer pruning in June, increased fruit seto High levels of nitrogen increased number of flowers per plant and shoot growth, but reduced fruit set. En un sistema de lisímetros, se realizó un ensayo para determinar el efecto de una red negra antigranizo con una capacidad reductora de la luz del 33%, con tres diferentes niveles de fertilización nitrogenada y poda de verano en dos diferentes épocas sobre el crecimiento vegetativo y reproductivo de árboles. de manzano 'Golden Delicious' en Berlín (Alem.). Se discuten los resultados del crecimiento de las ramas, diámetro del tallo, la relación ramas/raíz, el área foliar, caída prematura de hojas, el número de flores porplanta, la densidad de flores por rama, el amarre de frutos y la producción de materia seca. En términos generales, la sombra no afectó considerablemente el crecimiento vegetativo, pero sí redujo el área foliar y el amarre defrutos. La poda de invierno indujo un mayor número de flores por planta y la poda de invierno con poda de verano en junio favoreció el mejor amarre de frutos. Con el incremento en la dosis de nitrógeno se presentó un mayor número de flores por planta, y un mayor crecimiento de las ramas, pero se redujo el amarre de frutos. Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias 2000-01-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unal.edu.co/index.php/agrocol/article/view/21590 Agronomía Colombiana; Vol. 17 No. 1-3 (2000); 79-84 Agronomía Colombiana; Vol. 17 Núm. 1-3 (2000); 79-84 Agronomía Colombiana; v. 17 n. 1-3 (2000); 79-84 2357-3732 0120-9965 spa https://revistas.unal.edu.co/index.php/agrocol/article/view/21590/22597 Copyright (c) 2000 Agronomía Colombiana https://creativecommons.org/licenses/by-nc-sa/4.0 |
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| author |
Casierra Posada, Fanor Lüdders, Peter |
| spellingShingle |
Casierra Posada, Fanor Lüdders, Peter Effect oflight reduction, surnmerpruning and nitro gen supply on the vegetative and generative growth of 'Golden Delicious' apples |
| author_facet |
Casierra Posada, Fanor Lüdders, Peter |
| author_sort |
Casierra Posada, Fanor |
| title |
Effect oflight reduction, surnmerpruning and nitro gen supply on the vegetative and generative growth of 'Golden Delicious' apples |
| title_short |
Effect oflight reduction, surnmerpruning and nitro gen supply on the vegetative and generative growth of 'Golden Delicious' apples |
| title_full |
Effect oflight reduction, surnmerpruning and nitro gen supply on the vegetative and generative growth of 'Golden Delicious' apples |
| title_fullStr |
Effect oflight reduction, surnmerpruning and nitro gen supply on the vegetative and generative growth of 'Golden Delicious' apples |
| title_full_unstemmed |
Effect oflight reduction, surnmerpruning and nitro gen supply on the vegetative and generative growth of 'Golden Delicious' apples |
| title_sort |
effect oflight reduction, surnmerpruning and nitro gen supply on the vegetative and generative growth of 'golden delicious' apples |
| description |
In order to study the effect of a black mesh protection net (33% light reduction capacity) on the vegetative and reproductive growth of 'Golden Delicious' apple trees in Berlin (Germany), three different nitrogen levels and summer pruning at two different times were used. The results of shoots growth, trunk growth, shootlroot ratio, leafarea, early leaffall, numberofflowers perplant, flowers density per branch, fruit set and dry matter production are presented and discussed. In general, shade did not affect vegetative growth, but leaf area and fruit set. Winter pruning induced the greatest number of flowers per plant. Winter pruning along with surnmer pruning in June, increased fruit seto High levels of nitrogen increased number of flowers per plant and shoot growth, but reduced fruit set. |
| publisher |
Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias |
| publishDate |
2000 |
| url |
https://revistas.unal.edu.co/index.php/agrocol/article/view/21590 |
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