Evaluación de sustratos y ácido alfa-naftalenacético para la propagación vegetativa del mortiño (Vaccinium floribundum Kunth.) con fines de conservación en la zona de amortiguamiento en el parque nacional Cotacachi-Cayapas
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Date
2023
Journal Title
Journal ISSN
Volume Title
Publisher
PUCE - Ibarra
Abstract
El mortiño (Vaccinium floribundum Kunth), arbusto silvestre perteneciente a la familia Ericaceae con un gran valor ecológico, cultural, social, económico y productivo, es una gran alternativa para ampliar y mejorar el desarrollo de los páramos del Ecuador ya que presentan varios problemas en sus ecosistemas que los vuelven muy frágiles y vulnerables. Al tener pocos estudios previos sobre la propagación de esta especie, se realizó el siguiente estudio que está dirigido a la evaluación de tres tipos de sustratos y tres dosis Ácido Alfa Naftalenacético (A.N.A) cuya finalidad es establecer un protocolo de propagación vegetativa con el mejor sustrato y dosis de Ácido Alfa-Naftalenacético para esta especie nativa tan importante. La investigación se realizó en la Provincia de Imbabura, Cantón Otavalo, Parroquia San José de Quichinche, Comunidad de Larcacunga, dentro de las evaluaciones realizadas (a los 90, 120 y 150 días), el mejor tratamiento fue T7 (50% Tierra negra + 50% Cascarilla de arroz + Dosis alta de ácido), este tuvo un porcentaje de plantas prendidas de 86,7%, 2,8 de número de brotes por estaca y 1,5 cm longitud de brotes en las evaluaciones, con lo que se llegó a la conclusión de que la especie en estudio se desarrolla de mejor forma en un ambiente natural con presencia de Tierra negra como principal sustrato y la Cascarilla de arroz como medio de aireación. En cuanto a las dosis de la auxina o Ácido Alfa Naftalenacético la dosis alta fue quién aportó de mejor manera para un desarrollo más adecuado de la planta, incluso en los tratamientos donde no estuvo presente la tierra negra que es el sustrato más adecuado para la especie.
The mortiño (Vaccinium floribundum Kunth), a wild shrub belonging to the Ericaceae family with a great ecological, cultural, social, economic and productive value, is a great alternative to expand and improve the development of the moors of Ecuador since they present several problems in their ecosystems that make them very fragile and vulnerable. Having few previous studies on the propagation of this species, I present the following study that is aimed at the evaluation of three types of substrates and three Alpha-Naphthaleneacetic Acid (ANA) doses whose purpose is to establish a vegetative propagation protocol with the best Substrate and dose of Alpha-Naphthaleneacetic Acid for this important native species. The research was carried out in the Imbabura Province, Otavalo Canton, San José de Quichinche Parish, Larcacunga Community, within the evaluations carried out (at 90, 120 and 150 days), the best treatment was T7 (50% black soil + 50% Rice husk + High dose of acid), this had a percentage of plants on fire of 86,7%, 2,8 number of shoots per stake and 1,5 cm length of shoots in the evaluations, with which it was concluded that the species under study develops better in a natural environment with the presence of Black Earth as the main substrate and rice husk as a means of aeration. Regarding the doses of auxin or Alpha-Naftalenacetic Acid, the high dose was the one that best contributed to a more adequate development of the plant, even in the treatments where the black earth was not present, which is the most suitable substrate for the species.
The mortiño (Vaccinium floribundum Kunth), a wild shrub belonging to the Ericaceae family with a great ecological, cultural, social, economic and productive value, is a great alternative to expand and improve the development of the moors of Ecuador since they present several problems in their ecosystems that make them very fragile and vulnerable. Having few previous studies on the propagation of this species, I present the following study that is aimed at the evaluation of three types of substrates and three Alpha-Naphthaleneacetic Acid (ANA) doses whose purpose is to establish a vegetative propagation protocol with the best Substrate and dose of Alpha-Naphthaleneacetic Acid for this important native species. The research was carried out in the Imbabura Province, Otavalo Canton, San José de Quichinche Parish, Larcacunga Community, within the evaluations carried out (at 90, 120 and 150 days), the best treatment was T7 (50% black soil + 50% Rice husk + High dose of acid), this had a percentage of plants on fire of 86,7%, 2,8 number of shoots per stake and 1,5 cm length of shoots in the evaluations, with which it was concluded that the species under study develops better in a natural environment with the presence of Black Earth as the main substrate and rice husk as a means of aeration. Regarding the doses of auxin or Alpha-Naftalenacetic Acid, the high dose was the one that best contributed to a more adequate development of the plant, even in the treatments where the black earth was not present, which is the most suitable substrate for the species.
Description
Keywords
Mortiño, Nativa, Sustratos, Propagación, Auxina