Germination of bean seeds (Phaseolus vulgaris L.) at different temperatures
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Abstract
The research was developed in the Base Scientific Science Unit, Los Palacios, Pinar del Río, Cuba, belonging to the National Institute of Agricultural Sciences. The objective was to evaluate the influence of temperatures on the germination of four bean cultivars. Seeds of Phaseolus vulgaris L. (beans) were analyzed from the cultivars, Cubana 23, Chévere, Buena Ventura, La Cuba 154. The germination temperatures considered in each trial were 20, 30 and 40 ºC. The experimental design used was completely randomized in all cases, each trial was evaluated individually and was repeated twice, it worked with the means of these repetitions. Germinated seeds were counted from their establishment until stabilization, with the obtained data: germination percentage, germinated seeds per day and the Maguire Index were determined. The results were subjected to an analysis of variance (ANOVA) with a confidence level of 99 %. The results of this work indicate that there is sensitivity of different bean cultivars to a variation in temperature in the germination process; therefore, the effect of temperature is closely related to the genetic material that is being worked on. Temperatures higher than 30 ºC decrease the germination speed in cultivars under study.
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