Respuesta de las características del sistema de raíces y de la vegetación en patrones de almendro frente al aporte de estimulantes de raíz
[EN] The almond tree (Prunus dulcis (Miller)) is an expanding crop, with production performance and yield rates increasing worldwide. However, the differences between producing countries are remarkable and lie very significantly on plantation management, especially with regard to irrigation and fert...
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| Formato: | tesis de maestría |
| Fecha de publicación: | 2015 |
| País: | España |
| Recursos: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | español |
| OAI Identifier: | oai:riunet.upv.es:10251/67184 |
| Acesso em linha: | https://riunet.upv.es/handle/10251/67184 |
| Access Level: | acceso abierto |
| Palavra-chave: | Almendro Patrón Fertilización Bioestimulante Sistema de raíces Vegetación Almond tree Rootstock Fertilisation Biostimulant Radical system Vegetative system PRODUCCION VEGETAL ECONOMIA FINANCIERA Y CONTABILIDAD Máster Universitario en Sanidad y Producción Vegetal-Màster Universitari en Sanitat i Producció Vegetal |
| Resumo: | [EN] The almond tree (Prunus dulcis (Miller)) is an expanding crop, with production performance and yield rates increasing worldwide. However, the differences between producing countries are remarkable and lie very significantly on plantation management, especially with regard to irrigation and fertilization. One of the aims of the producers in the first phenological stages of the tree is to promote the formation of an adequate root system as this will determine to a large extent the future development of the almond tree. We studied and compared in this essay the response of both vegetative and radical systems, in the phenological stage just after garden centre nursery, of three rootstocks of almond tree (GF 677, GN Garnem y RP-R) to four biostimulants contents and a nutrient solution based on traditional almond fertilization. For this, individual treatments were performed on a weekly basis for 20 weeks (January to June) to the rootstocks that were placed, under irrigated conditions, in pots at the Polytechnic University of Valencia. Significant differences in the development of three rootstocks were found. GF 677 rootstock shown the less radical development, while GN Garmen was the rootstock with the more vigorous vegetative system, and RP-R the one that exhibited the more uniform spatial distribution of the root complex. As far as applied treatment are concerned, all products, with the exception of the product based on phosphites, showed modified patterns of development producing larger and wider vegetative and radical development than the samples used as control. The treatment that obtained the greatest results compared to both control samples and other biostimulants samples was the nutrient solution tested. Products with high percentages of organic matter in their composition showed very similar results with each other, leading to weight gain in both the vegetative and the root system and further promoting the formation of a greater number of secondary roots. The commercial product based on saccharides significantly different from control for most measurements but with results generally lower than the other treatments tested. All samples different from the control ones showed a decrease in the root to shoot ratio causing, according to the treatment applied, a more or less intense imbalance between shoots and roots systems. |
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