Rooting young stem cuttings of Solanum tuberosum L. var. yungay using 2,4-dichlorophenoxyacetic acid

Katty Aracely Gonza-Carnero, Segundo Eloy López-Medina, Armando Efraín Gil-Rivero, José Mostacero-León, Angélica López-Zavaleta, Anthony J. De La Cruz-Castillo, Luigi Villena Zapata
2020 Corpoica Ciencia y Tecnología Agropecuaria  
For the propagation of Solanum tuberosum, tubers as seeds are the most commonly used method in most agroecological areas. The use of young stem cuttings is an exclusive practice of nurseries and agricultural companies, which employ rooting hormones that are inaccessible to small farmers. Reportedly, synthetic auxin 2,4-dichlorophenoxyacetic acid (2,4-D) at a very low concentration induces the rooting of cuttings and can be an accessible alternative for small-scale agriculture. Given the need
more » ... broader knowledge, this research aims to evaluate the rooting effect of 2,4-D in young stem cuttings of S. tuberosum var. yungay. The experimental phase took place in the greenhouse of the Institute for Potato and Andean Crops, Universidad Nacional de Trujillo, Peru, with seedlings from the same Institute. These seedlings became mother plant donors of young stem cuttings, which were sown in a rooting bed with different 2,4-D concentrations. When analyzed statistically, the results obtained show that the 0.3 % concentration caused a higher average in the number of roots (6.52), root length (5.31 cm), and seedling height (2.63 cm). In conclusion, 2,4-D at a 0.3 % concentration produces the better rooting of young stem cuttings of S. tuberosum var. yungay.
doi:10.21930/rcta.vol21_num3_art:1604 doaj:f1a3b200af2a45049b15a4cd5360b080 fatcat:vql4u46wj5dfxmlquv2ji44aiy