info:eu-repo/semantics/article
Effect of the Hot-Water Treatment for the Control of Ratoon Stunting on the Germination of Some Commercial Sugarcane Varieties
Título en español.
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Resumen
An experiment was conducted using the hot-water treatment at 50° C. for 2 hours for the purpose of determining the tolerance of some commercial sugarcane varieties grown in Puerto Rico to the heat treatment used in the control of the ratoon-stunting disease, as well as the effect on the germination of the different sections of the stem. Three-eyed seed pieces from the top, middle, and bottom sections of the following the canes were used: P.R.980, B.37161, P.O.J.2878, M.336, B.41227, H.328560, B.4362, B.40105, B.37172, and P.R.905. The results were as follows: 1. There were marked differences among the varieties tested in regard to heat tolerance, as reflected by the percentage germination of the heat-treated canes. 2. In general, the middle section tolerated the heat treatment better than the top, whereas the basal section was also more resistant to heat than the top. Se llevó a cabo un experimento con el propósito de determinar el efecto del tratamiento con agua caliente sobre la germinación de algunas variedades de caña de azúcar y además la tolerancia al calor de las distintas partes del tallo (base, medio y punta) de las distintas variedades. Los resultados fueron los siguientes: 1. Hubo diferencias notables en cuanto a la germinación de las distintas variedades tratadas con calor. 2. Referente al tratamiento con calor de las distintas secciones del tallo se puede decir que, en general y con excepción de las variedades B.37172 y M.336, la parte del medio se afectó menos con el tratamiento que la base y asimismo la base menos que la punta.