Abstract

DIAZ SOLARES, Maykelis et al. Effect of IHPLUS^® on the germination process of Sorghum bicolor L. (Moench). Pastos y Forrajes [online]. 2019, vol.42, n.1, pp.30-38. ISSN 0864-0394.

The objective of this study was to evaluate the effect of the bioproduct IHPLUS® and its immersion times, on the germination process of Sorghum bicolor L. Moench cv. UDG-110. Ten treatments were studied: control (distilled water); and other nine with application of the product in three concentrations (2, 4 and 6 %) and three immersion times (2, 4 and 6 h). The seeds were planted on 5-cm diameter Petri dishes, on support of filter paper moisturized with distilled water. The following indicators were evaluated: germination percentage and value, root length and aerial part length, α-amylase activity and content of proteins and reducing sugars. A completely randomized design was used with four replicas per treatment. The results were processed with the statistical package SPSS® version 15.0. An ANOVA was used and Tukey’s multiple range test was used for mean comparison. The treatments with IHPUS® showed a positive effect on the germination process. An increase in the germination value was observed in the first 48 h of the essay with the application of the product, as well as higher values in root and aerial part length. There was an increase of the α-amylase activity which was in correspondence with an increase in the concentrations of reducing sugars and total soluble proteins. It is concluded that IHPLUS® is an effective bioproduct to stimulate the germination process of S. bicolor L. Moench cv. UDG-110, with potentialities for the development of agroecological agriculture.

Keywords : germination; enzymic activity; reducing sugars.

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