Pectimorf® employment to stimulate tuberization in potato (Solanum tuberosum L.)
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Abstract
An experiment was carried out for two years in areas belonging to the National Institute of Agricultural Sciences (INCA) to evaluate the influence of Pectimorf® in the potato plant tuberization process, in order to evaluate the influence of Pectimorf® on the number of stems per plant and number of stolons and tubers per stem. The work consisted in applying Pectimorf® at a concentration of 10 mg L-1 at the time of planting, sprayed on the seed tubers and at 20, 25 and 30 days after planting the foliage and a control without application, following a completely randomized design. The plants were grown in containers of six liters capacity (two plants in each) containing a Ferralitic Red Eutric Compact soil and imported seed of the Romano variety of Dutch provenance for planting. Ten days after the last application, the following indicators were evaluated: number of stems per plant, number of stolons, and number of tubers per stem. The differences among treatments were evaluated using the confidence interval calculation of means from their standard error and means were compared using the t-student test p<0,05. All statistical processing was performed using Statgraphics v. 5.1 and the graphs were performed with the program SigmaPlot v. 11. The results showed influence of Pectimorf® on the induction of stolons and a greater number of tubers when applied at 25 days after planting when compared to plants that had not been treated.
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