Physiological Quality of Common Bean Seeds Subjected to Different Concentrations of Salicylic Acid

Abstract

Salicylic acid acts on several plant physiological processes. Therefore, the aim of this study was to determine if salicylic acid interferes on the physiological quality of common bean seeds soaked with different concentrations by testing two seed imbibition methodologies. Common bean seeds of the cultivars Fepagro 26 and Predileto were utilized. The seeds were soaked in solutions of salicylic acid with concentrations of zero, 250, 500, 750, 1,000, 3,000 and 5,000 μM. Seed imbibition occurred in two ways: (1) germination paper moistened with salicylic acid solutions, and (2) seed imbibition in salicylic acid solutions in plastic boxes for 24 hours and subsequent sowing on germination paper moistened with distilled water. The experiment was maintained in a germination incubator under 25 °C temperature and with constant light. The number of normal seedlings (first count), length, fresh and dry matter of seedlings were determined on the fifth day after sowing. Germination percentage was assessed nine days after sowing. The study was performed in a completely randomized design with four replicates and 50 seeds were used for each treatment. Regression analysis was performed for salicylic acid concentrations, with no comparison of cultivars and seed imbibition methods. Salicylic acid in concentrations up to 1,000 μM does not negatively affect the common bean seed germination of the cultivars Fepagro 26 and Predileto, using seed soaking for 24 hours and imbibition in the germination paper. Concentrations of salicylic acid up to 1,000 μM and seed imbibition for 24 hours do not affect the vigor (first count) of the two common bean cultivars.

Physiological and sanitary quality of black bean seeds dependent on storage time and initial seed moisture content

“…The variables of first germination count (FGR) and germination (GER), at 5 and 9 DAS, respectively, gave similar results, with general averages of 95, 92, 77, 71 and 64% of FGR and GER for storage periods of 0, 3, 6, 9 and 12 months in cold chambers, in that order. Fernandes et al (2019) found that black bean seeds showed similar FGR and GER, even when subjected to saline conditions. (MAPA) (Brazil, 2013), black bean seeds must have at 70% germination for the basic commercial category and for other categories at least 80% germination.…”

“…The production of black beans (Phaseolus vulgaris L.) in Brazil is intended for domestic consumption, with family farming being responsible for a large part of this production. One of the fundamental agricultural inputs for productivity is good quality seeds, which guarantee sustainability and food security, both for this type of agriculture and for domestic consumption (Sousa and Wander, 2014;Fernandes et al, 2019).…”

ESTABELECIMENTO IN VITRO DE Swietenia macrophylla KING EM CULTURA DE TECIDOS VEGETAIS

“…Resultados semelhantes ao do presente trabalho, foram observados por Fernandes et al (2019) em que as soluções com ácido salicílico acima de 500 µM resultaram em menor porcentagem de germinação de sementes de feijão (Phaseolus vulgaris L.).…”

REGENERAÇÃO IN VITRO DE Pyrostegia venusta A PARTIR DE CULTURAS DE MERISTEMA APICAL

“…Resultados semelhantes ao do presente trabalho, foram observados por Fernandes et al (2019) em que as soluções com ácido salicílico acima de 500 µM resultaram em menor porcentagem de germinação de sementes de feijão (Phaseolus vulgaris L.). Figura 1.…”