Mate Minicuttings Rooting under Different Environments
Keywords:
Ilex paraguariensis, Aquifoliaceae, cloning, vegetative propagation, minicutting technique.Abstract
There is little knowledge about the vegetative propagation of Ilex paraguariensis, mainly in relation to the minicutting technique and rooting environmental aspects. This study aimed to evaluate the initial rooting environment in relation to the survival, shoot vigor and minicuttings rooting of this species. The experiment was conducted in a completely randomized design, under a factorial arrange (3x2), with three clones (A7, A21 and A35) and two rooting environments (simple greenhouse - without control of temperature and humidity; and automatized greenhouse - with automatized control). The minicutting survival in the exit of greenhouses and in the exit of shadow house was not influenced by the tested environments, with 51.8 % to 71.9 % of survival variation. The A7 and A21 clones did not present significative difference in relation to rooting, with averages of 49.1 % and 46.4 %, respectively. However, the A35 clone showed the best development (62.5 % of rooting) when it was cultivated under automatized greenhouse condition. The automatized greenhouse favored not only the characteristics leaf and shoot numbers, but also the shoot length. The minicutting technique for I. paraguariensis may be considered viable in both evaluated rooting environments, which presented similar results.Downloads
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