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Estrategias reproductivas de dos especies de frutos secos: almendro y nogal

Authors: Martín Hurtado, Irene;

Estrategias reproductivas de dos especies de frutos secos: almendro y nogal

Abstract

L'ametller i la noguera són dues espècies de fruits secs de gran importància a Espanya amb una biologia floral molt diferent.En aquest treball s'ha estudiat la possible influència del tipus de pol•linització (autopol•linització o pol•linització creuada) en 5 varietats autocompatibles d'ametller i 1 de noguera. Els estudis realitzats s'han centrat en l'observació del creixement dels tubs pol•línics, els percentatges de quallat, diferents característiques del fruit: (rendiment en gra, pes, longitud, amplada i gruix)y el nivell de creuament. S'han utilitzat marcadors isoenzims i microsatèl•lits, per determinar la procedència dels fruits analitzats.Els resultats obtinguts en els assajos del creixement dels tubs pol•línics, de quallat i característiques del fruit, no permeten generalitzar sobre la influència del tipus de pol•linització en aquests aspectes.En les 2 plantacions d'ametller i en 2 plantacions de noguera, la majoria de fruits procedien de flors autopol•linitzades. A la tercera plantació de noguera, la més jove, s'ha observat un major percentatge de nous procedents de pol•linització creuada.

Almendro (Prunus dulcis L.) y nogal (Juglans regia L.) son 2 especies de gran importancia en nuestro país con una biología floral muy distinta. En este trabajo se ha estudiado la posible influencia del tipo de polinización (autopolinización o polinización cruzada) en 5 variedades autocompatibles de almendro y en 1 variedad de nogal. Los estudios se han centrado en la observación del crecimiento de los tubos polínicos, los porcentajes de cuajado, las distintas características del fruto (rendimiento en grano, peso, longitud, anchura y grosor) y nivel de cruzamiento. Se han utilizado isoenzimas y microsatélites, para determinar la procedencia de los frutos analizados.Los resultados obtenidos en los ensayos de los tubos polínicos, cuajado y características del fruto, no permiten generalizar sobre la influencia del tipo de polinización en estos aspectos.En las 2 plantaciones de almendro y en 2 de nogal la mayoría de frutos procedían de autopolinización. En la tercera plantación nogal, la más joven, se ha observado un mayor porcentaje de nueces procedentes polinización cruzada.

Almonds and walnuts are two very important types of nuts in Spain, with extremely different flower biology.In this work, we have studied the potential influence of different types of pollination (self-pollination or cross-pollination) on 5 self-compatible varieties of almond trees and on 1 variety of walnut trees. Isoenzymes and microsatellites have been used in order to establish the source of the fruits analysed. The results obtained in the study of the pollen tube growth, fruit set test and the features of the fruit do not allow us to generalise on the influence of the type of pollination in these aspects. In the 2 almond-tree plantations and in 2 of the walnut plantations, most almonds came from self-pollinated flowers, while in the third walnut plantation, the youngest one, a higher percentage of walnuts were originated by cross-pollination.

Country
Spain
Keywords

Walnut, Nogal, Características fruto, 633, Almond, Pol·linització, 631, Atmeller, Polinización, Noguer, Característiques fruit, Producció Vegetal, Almendro

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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