Quitomax ® influences in the production of potato “seed” tubers (Solanum tuberosum L.) Romano variety
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Abstract
In the production chain of the potato, the production of “seed” tubers is insufficient, so the objective of the work was to evaluate the effect of Quitomax ® in the production of seed potato tubers. The plantations was carried out in the years 2015, 2016 and 2017, by means of a random block design with three replicates and three treatments: a control without application and foliar application of two chitosan of different molar mass, it was applied at a rate of 300 mL ha-1, at 30 and 50 days after planting (DAP).The harvest was evaluated at 75 DAP, but in year 2017, at 65 DAP too. All the plants corresponding to two furrows of each treatment were taken in each plot and the tubers were separated by size, weighed and counted.The number of stems and the number of tubers per plant ware evaluated, in addition to estimating yield in t ha-1. A double-ranking ANOVA were used to processing data and the Duncan’s test to compare the means. No effects with respect to the control in the number of stems and the number of tubers were detected. The size and distribution of tuber ensured a greater amount of the same in the calibers used as seed in both chitosan, but this result was reached earlier than in the control, the yield was higher in plants sprayed with the bioproduct.
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