Estudo comparativo do comportamento agronómico de cinco clones de perreira (Pyrus communis L.) cv. Rocha em três porta-enxertos

TL;DRAbstract

With the aim of evaluating the potential of five 'Rocha' pear clones (1, 2, 4c, T and Z), a field trial was conducted at APAS orchard, located in Cadaval (Sobrena).All the clones were grafted onto Provence BA-29, EMA and Sydo rootstocks and trees grown under identical soil and climate conditions.The agronomic characteristics and economic results were evaluated from 2006 until 2011 corresponding to the 5 th and 10 th year of the orchard.The field trial indicated that there isn't an ideal combination of clone/rootstock leading to earlier pear production, trees with medium vigour, high fruit size, rounded shape fruits and good fruit quality.Combinations of Z/Sydo, 2/Sydo and T/Sydo reached the highest yields per unit/tree while the most productive was T/Sydo followed by Z/Sydo with a revenue of 42.968,3 .ha -1 and 38.551,7 .ha -1 , respectively.Among the clones there were slight differences in fruit quality, the clones 4c, 1 and T produced pears with the highest fruit size and roundest sh

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