Evaluación de enraizamiento de estacas de cedro (Cedrela odorata L.) con tres dosis de ácido naftalenacético en vivero, parroquia n Nueva Loja, provincia de Sucumbíos.

Abstract

This research proposes to improve the production of Cedrela odorata L., in nursery, treatments with the phytohormone naphthaleneacetic acid (NAA) were applied in cuttings; located in the province of Sucumbíos. A randomized complete block experimental design (DBCA) was used, in factorial arrangement, with 4 treatments including the control with three replications. It was worked with cuttings from seedlings of Cedrela odorata L., in the nursery acclimatization stage, since cuttings from the mother tree were used and did not produce results. The factors under study were T1 (Control), T2 (Active ingredient, 5g/plant), T3 (Active ingredient 10g/plant) and T4 (Active ingredient, 15g/plant). In terms of the gathered results: In the percentage of lodging, the T2 treatment (active ingredient, 5g/plant) was the best with a value of 83.86%. In the root length variable, the best treatment was also T2 (active ingredient, 5g/plant), with a value of 36.52 mm. Regarding the number of shoots the best was the treatment T2 (Active ingredient, 5g/plant) with a value of 2.5 ≈ 3 shoots. Regarding the variable of number of roots the treatment T2 (Active ingredient, 5g/plant) was the best giving us a value of 6.7 ≈ 7 roots at the end of 45 days that the experiment was carried out. It is concluded that the dose of 5g/plant is the most suitable for the multiplication of Cedrela odorata L. seedlings, since it presented the best results in the variables studied. It is recommended in asexual propagation studies of Cedrela odorata L., using ANA, to apply doses of 5 g/plant or less to corroborate the optimum range of propagation of the species.