Enraizamiento de esquejes de tallo juvenil de Solanum tuberosum L. var. yungay mediante la aplicación del ácido 2,4-diclorofenoxiacético
2020
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 for 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.
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