Interruption of Seed Dormancy and In Vitro Germination of the Halophile Emerging Crop <i>Suaeda edulis</i> (Chenopodiaceae)
Francyelli Regina Costa-Becheleni,
Enrique Troyo-Diéguez,
Alejandra Nieto-Garibay,
Luis Alejandro Bustamante-Salazar,
Hugo Sergio García-Galindo,
Bernardo Murillo-Amador
Affiliations
Francyelli Regina Costa-Becheleni
Center for Biological Research of Northwest México S.C. (CIBNOR), Graduate Studies and Human Resources Program, Av. Instituto Politécnico Nacional No. 195, Colonia Playa Palo de Santa Rita Sur, La Paz 23096, Baja California Sur, Mexico
Enrique Troyo-Diéguez
Center for Biological Research of Northwest México S.C. (CIBNOR), Arid Zone Agriculture Program, Av. Instituto Politécnico Nacional No. 195, Colonia Playa Palo de Santa Rita Sur, La Paz 23096, Baja California Sur, Mexico
Alejandra Nieto-Garibay
Center for Biological Research of Northwest México S.C. (CIBNOR), Arid Zone Agriculture Program, Av. Instituto Politécnico Nacional No. 195, Colonia Playa Palo de Santa Rita Sur, La Paz 23096, Baja California Sur, Mexico
Luis Alejandro Bustamante-Salazar
Department of Instrumental Analysis, Faculty of Pharmacy, University of Concepción, Av. Víctor Lamas No. 1290, Concepcion 4070386, Chile
Hugo Sergio García-Galindo
National Technological Institute of México (TecNM-Campus Veracruz), Av. Miguel A. de Quevedo No. 2779, Colonia Formando Hogar, Veracruz 91897, Mexico
Bernardo Murillo-Amador
Center for Biological Research of Northwest México S.C. (CIBNOR), Arid Zone Agriculture Program, Av. Instituto Politécnico Nacional No. 195, Colonia Playa Palo de Santa Rita Sur, La Paz 23096, Baja California Sur, Mexico
Suaeda edulis (Flores Olvera & Noguez) is a halophile species that grows in saline environments, with concomitant difficulties to germinate and reproduce. Once a null germination under a salinity gradient or fresh water was observed, a plant-growth bioregulator (BioR) was applied to interrupt dormancy and improve germination in vitro. This BioR is composed of gibberellins and adjuvant regulators; and 12.5, 25.0, and 37.5 mg L−1 of gibberellins with immersion at 24, 48, and 72 h were assayed. Most of the normality and homoscedasticity tests were favorable, except in three of 24 cases. On the germination percentage (transformed values), the dose 25.0 mg L−1 reflected the highest values of 5.5 and 6.0 units at 48 and 72 h. For the mean germination time, the highest level of 37.5 mg L−1 at 24 h reflected the best response. For the germination rate, the best one was 25 mg L−1 at 48 h, reaching 12% per day, but for the germination speed coefficient, the best value was observed with 25.0 mg L−1 at 24 h. It was concluded that to improve germination of S. edulis seeds, it is necessary to assess a dose-gradient of gibberellins, starting at 25.0 mg L−1, with higher values to break dormancy.