NaCl effect on germination and seedling fresh weight of Stenocereus eruca (Brandegee) A.C. Gibson & K.E. Horak

Authors

  • F. Alfredo Beltrán-Morales Universidad Autónoma de Baja California Sur. Carretera al Sur, km. 5.5. Apartado Postal 19-B. La Paz Baja California Sur, México. C.P. 23080.
  • Pablo Misael Arce-Amezquita Universidad Autónoma de Baja California Sur. Carretera al Sur, km. 5.5. Apartado Postal 19-B. La Paz Baja California Sur, México. C.P. 23080.
  • Francisco Higinio Ruiz-Espinoza Universidad Autónoma de Baja California Sur. Carretera al Sur, km. 5.5. Apartado Postal 19-B. La Paz Baja California Sur, México. C.P. 23080
  • Valeria Beltrán-Valdivia Centro de Investigaciones Biológicas del Noroeste, S.C. Av. Instituto Politécnico Nacional No. 195. Colonia Playa Palo de Santa Rita Sur. La Paz, Baja California Sur, México. C.P. 23096.
  • Luis Guillermo Hernández-Montiel Centro de Investigaciones Biológicas del Noroeste, S.C. Av. Instituto Politécnico Nacional No. 195. Colonia Playa Palo de Santa Rita Sur. La Paz, Baja California Sur, México. C.P. 23096.
  • Bernardo Murillo-Amador Centro de Investigaciones Biológicas del Noroeste, S.C. Av. Instituto Politécnico Nacional No. 195. Colonia Playa Palo de Santa Rita Sur. La Paz, Baja California Sur, México. C.P. 23096.

Keywords:

endemic species, salinity, endangered species

Abstract

Environmental disruption is particularly determinant for cacti development since they have slow growth and long life cycles. Soil and water salinity are two of the main environmental factors that are considered primordial for the propagation, seedling growth, establishment, and development of coastal cacti. The objective of this study was to evaluate chirinola (Stenocereus eruca) seed germination and seedling fresh weight using NaCl as a saline medium. One hundred seeds divided into five replicates of 20 seeds in a completely randomized design, were treated with five salinity levels and distilled water as control (0, 2, 6, 8, and 10 dS m-1). Seeds were picked up from ripe fruits at a wild Stenocereus eruca population near San Carlos, Baja California Sur, México. Seedling fresh weight was significantly affected by saline stress, with lower fresh weight at the highest doses of 10 dS m-1, and the greatest fresh weight production was obtained with 0 and 2 dS m-1. However, germination percentage was greater at intermediate levels of 2 and 4 dS m-1 and lowest at 10 dS m-1 using NaCl; however, more studies should be conducted including other growth variables, seed viability, and salinity levels.

Published

2021-09-26

Issue

Section

Scientific Papers