Propagación sexual y asexual de Cedrela odorata l. (Cedro) bajo invernadero en el Vivero de Corposucumbios del Consejo Provincial de Sucumbíos

Abstract

The present research proposes: to improve the production of Cedrela odorata L. (Cedar), pre-germinative treatments were applied to the seeds, and phytohormones were evaluated in stakes; located in the province of Sucumbíos. The DCA experimental design was used, in a factorial arrangement with 4 treatments including the control by 3 repetitions. Both, the method of sexual and asexual reproduction were worked separately, for the first, the study factors were T1 (Control), T2 (Immersion in water to the environment for 24 hours), T3 (Immersion in water to the environment for 36 hours), T4 (Immersion in water to the environment for 48 hours), and for the second case were: T1 (Control, without phytohormone), T2 (Hormonagro 1. 5g/p), T3 (Biozyme tf 5ml / L), and T4 (Rootmost 5ml / L). It obtained results through the sexual method; the emergence of this species began at 7 days and culminated at 23 days after sowing in treatment T2 (immersion in water to the environment for 24 hours, besides, It obtained the best values in emergency percentage, diameter of the seedling, and height of the seedling with 88.89%, 0.182cm and 8.34cm respectively, compared to the other treatments.). The results in the asexual method are: In the percentage of rooting, the T4 treatment (Rootmost 5ml / L was the best with a value of 86.33%. In the variable number of outbreaks per stake there was no significance. For the number of roots per stakes the treatment T2 (Hormonagro 1. 5g / p) obtained the highest average of 11.50 roots, and for the root length variable the best treatment was T3 (Biozyme tf 5ml / L) which obtained a value of 9.06 cm. According to the cost analysis, the best method of propagation is the sexual one, T1 (Control, without pre-germinative treatment) was the one that presented the lowest production cost, with a value of USD 0.06 per seedling.

KEY WORDS: SEXUAL PROPAGATION - ASEXUAL PROPAGATION -FITOHORMONES.