Articles
REDUCED NUTRIENT UPTAKE IN PEACH TREES TREATED WITH PACLOBUTRAZOL
Article number
463_18
Pages
163 – 168
Language
Abstract
Paclobutrazol (Pbz) is a triazol that effectively inhibits vegetative growth in peach.
Changes in mineral element concentration have been generally found.
However, uneven distribution of the elements in the soil may partially account for these differences.
The trees were treated with 2 g Pbz/tree shortly AFB. Reductions of 40% in leaf area and of 29% in dry weight were recorded in Pbz-treated peach.
Nutrient concentration on dry weight basis varied little (about 11%). However, global assimilation of nutrients on a leaf basis, when compared with controls, decreased up to the same extend as dry weight (25%). From these results it can be inferred that the mineral fertilization in Pbz-treated peach trees can be reduced to the same extend as the expected reduction in vegetative growth, consequently reducing production costs and environmental contamination.
Changes in mineral element concentration have been generally found.
However, uneven distribution of the elements in the soil may partially account for these differences.
The trees were treated with 2 g Pbz/tree shortly AFB. Reductions of 40% in leaf area and of 29% in dry weight were recorded in Pbz-treated peach.
Nutrient concentration on dry weight basis varied little (about 11%). However, global assimilation of nutrients on a leaf basis, when compared with controls, decreased up to the same extend as dry weight (25%). From these results it can be inferred that the mineral fertilization in Pbz-treated peach trees can be reduced to the same extend as the expected reduction in vegetative growth, consequently reducing production costs and environmental contamination.
Authors
J. Val, A. Pequerul, E. Monge, A. Blanco
Keywords
Peach, paclobutrazol, growth regulators, mineral nutrients, leaf area, dry matter, Prunus persica L. Batch
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