Abstract

BARIDON, Esteban et al. Populus spp. clonal response of growth in Argiudoll and Hapludoll soils in Buenos Aires Province, Argentina. Cienc. Inv. Agr. [online]. 2008, vol.35, n.3, pp. 287-292. ISSN 0718-1620.  http://dx.doi.org/10.4067/S0718-16202008000300006.

The aim of this study was to assess the growth of clones of Populus spp. in the soil types Hapludolls and Argiudolls, of the mainland in the Buenos Aires province. The study took place inAlberti (34°50' S, 60°30'W, 35m.a.s.l.), Buenos Aires , Argentina. Five clones oí Populus spp. were studied: ' Stoneville 66' ('Delta Gold'); 'Conti 12', '568-1', '610-31' and '564-17'. The experimental design consisted of randomized complete blocks with sub-samples. There were three blocks on three types of soil: a Typic Hapludoll, Entic Hapludoll, and a Typic Argiudoll. Physical and chemical characterizations of each soil type were performed. The average valúes of total basal área and height were recorded. The results were subjected to analysis of variance, and means were separated according to Tukey's test. An analysis of genotype-soil interaction was performed. No significant interaction between clone factor and soil factor was obtained. Clones 'Stoneville 66', and '568-1' did not differ significantly among themselves and displayed better growth. Therefore, no specific associations between these clones and the soils existed. These results should be valid and applicable for a large amount of land because of the wide distribution of Argiudoll and Hapludoll soils.

Keywords : Argentina; Argiudolls; Hapludolls; poplar growth; Populus spp. Salicaceae.