Evaluation of pre-germination treatments in Juglans neotropica Diels seeds. in the north of Ecuador.
DOI:
https://doi.org/10.54753/blc.v13i1.1737Keywords:
Propagation, endocarp, dormancy, germination, seedlingsAbstract
The species Juglans neotropica Diels, known in Ecuador as nogal or tocte, is threatened due to the loss of its habitat in the Andean region of South America. In the country there is little knowledge regarding the correlation between the decrease of the walnut population and the mastery of techniques for the propagation of the species. The reproduction of J. neotropica is limited by the physical dormancy of its seeds; pre-germination treatments are an ideal means to overcome the low uniformity in the germination of walnut seeds due to their lethargy. The present investigation had the objective of evaluating the effect of pre-germination treatments on the dormancy of Juglans neotropica seeds. A completely randomized experimental design was used with six treatments and one control, three repetitions and 25 seeds for each experimental unit. Regarding the accumulated germination, at the end of the test, all the pre-germination treatments presented significantly higher percentages than those registered by the control. Among the treatments used, running water for five days (T1) showed greater germination capacity, according to all the variables linked to this criterion, reaching a final germination percentage of 80%; while the scarification of the seed tip with a No. 80 sandpaper for ten minutes reached its germination peak (66%) in less time. It is concluded that the pre-germination treatments significantly influence the increase in the percentage and decrease in the germination time of Juglans neotropica.Metrics
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