Abstract

MEJENES-LOPEZ, S.M.A. et al. Germination and characteristics of seedlings of Uspí (Couepia polyandra: Chrysobalanaceae) under rustic nursery conditions in Campeche, Mexico. Polibotánica [online]. 2019, n.48, pp.111-120.  Epub June 15, 2020. ISSN 1405-2768.  https://doi.org/10.18387/polibotanica.48.9.

Couepia polyandra (Kunth) Rose belongs to the family Chrysobalanaceae, its distribution is Neotropical and is the only species of this genus of trees that lives in Mexico. It grows wild in the states of the Pacific slope and cultivated in the Gulf to the Yucatan Peninsula. In the state of Campeche, it is known as Uspí, it produces a yellow-orange pulpy drupe fruit. The objective of the work was to determine the effect of three geographic sites of the state of Campeche, Mexico on the morphological characteristics and seeds germination percentage of Uspí, as well as the development of seedlings in a rustic nursery. 47 seeds were taken for each tree from three sites, S1: Chiná, Campeche, S2: La Viuda and S3: El Puente San Isidro, Palizada; to which height, width and weight were measured. The height, diameter, as well as the length and width of the leaf were measured to the seedlings. The seeds of the three populations presented significant differences in the length, width and weight of the seeds. Seeds of larger size, thickness and length originated smaller seedlings. Seeds S1 and S2 showed high viability, with 76.6% germination at day 40, the seeds from S3 presented the highest values ​​in length, width and weight; however, they had a lower of germination percentage and seedlings with a smaller leaf surface. In contrast, seeds with smaller size and weight from S1 and S2 had a higher of germination percentage and bigger seedlings. Given the importance of the plant, these characteristics should be considered, for the selection of seeds and propagation in nurseries.

Keywords : Germination percentage; Growth; Germplasm; Correlation.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )