Las pruebas genéticas son llevadas a cabo por investigadores del Instituto de Virología del INTA y es la primera vez que se realizan en el país. Disponible para bioterios de producción y experimentación, esta herramienta permite ofrecer animales de identidad controlada, un requisito fundamental para obtener datos científicos confiables.
Trabajos en Prensa
Growth and stem straightness of the geographic origin of Corymbia spp. in the Argentine Mesopotamia
In recent years Corymbia spp. and their hybrids began to revalue as an important genus for the obtention of quality wood for solid high-value applications in different regions of the world. With the objective to evaluate the behavior of materials collected in the natural distribution area of Corymbia citriodora subsp. citriodora (CCC), Corymbia citriodora subsp. variegata (CCV) and Corymbia maculata (CM), the growth in volume (VOL) and the stem straightness (RF) were evaluated at 9th years of growth in 22 provenances belonging to these entities in three sites of the Mesopotamia region of Argentina. The site-site analysis showed that CCV was the most promising material. In two of the sites evaluated CCV overcame in VOL and RF to the other entities; at the third site had a slightly less growth than CM, although the statistical analysis did not reveal significant difference. The combined analysis revealed a low interaction among sites, since the genetic correlation at provenances within taxa level was high for stem volume and straightness (rgB = 0.77 and 0.99 respectively). Given the good performance of CCV and the existence of very good specimens within the provenances, we selected 30 outstanding individuals in volume across the three sites. These individuals, after being mobilized and propagated by grafting, will form the first Clonal Seed Orchard of CCV in Argentina. It is expected that the genetic gain of the Orchard for VOL in relation to the average of all the CCV assessed individuals is around 17%.
Keywords: Corymbia citriodora subsp. variegata, genotype-environment interaction, Clonal Seed Orchard.
1Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria (EEA) Bella Vista, Ruta 27, km 38,3, Bella
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