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Universidad de Chile (2008)

Efecto de intensidades de corte en el rebrote de Acacia caven (Mol.) Mol

Cornejo Zamorano, Patricia Andrea

Titre : Efecto de intensidades de corte en el rebrote de Acacia caven (Mol.) Mol

Auteur : Cornejo Zamorano, Patricia Andrea

Université de soutenance : Universidad de Chile

Grade : Ingeniero Agrónomo Mención : Producción Animal 2008

Résumé
In Agricultural Communities of the Region of Coquimbo, when there is herbaceous forage shortage especially in years droughts, a handling practice exists that, consists of breaking the branches of the espinos, damaging in many cases its recovery and these are given to the goat cattle to satisfy the demands of food. In order that this resource stays and it recovers of the different interventions realised by the inhabitants from the Region of Coquimbo, in the semi-arid zone work was realised in which were the effects of intensities of cuts in the sprout again of Acacia caven (Mol.) Mol., you cut to high, average and low intensities, and without intervention, of which the sprout again presence, the number of sprouts again was moderate and considered, dry weight of the consumable material, length of the sprout again and curves of growth of the sprout again. This study was realized in Rinconada de Maipú, specifically in the sector of dry land, the commune of Maipú, Metropolitan Region, with duration of seven months, beginning in August of the 2006 and finishing in March of the 2007. For this 32 espinos of more or less similar characteristics were used. Of the obtained results ; the great capacity was observed in the taken part espinos to sprout again, since after three months of realized the cut all they presented/displayed sprout again. In the espinos taken part to intensities it lowers and average of it cuts was observed the greater number of sprouts again and the greater dry weight of the consumable material at the end of the period of recovery. The effect of the intensities of cuts in the length of the sprout again was not significant. Nevertheless, in the units without intervention, a smaller growth in comparison was observed the taken part units. The curves of growth of the taken part units clearly adjust to a curve of growth, the one of the taken part unit is not rather straight, since its speed of growth is more constant. The greater speed of growth of the sprout again was found in the treatment of average intensity of cuts, therefore he is the one that reclaims more express after the intervention.

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