Evaluation of the agronomic performance of two potato cultivars and two planting densities in Barranca, Lima
DOI:
https://doi.org/10.51431/par.v3i2.701Keywords:
planting density, agronomic evaluation, plant breeding, Solanum tuberosum, yieldAbstract
Objectives: To evaluate the performance of two commercial potato cultivars (Solanum tuberosum) under two planting densities in Vinto, Barranca. Methodology: The research was developed under coastal conditions in Vinto, district of Barranca (Lima) at 227 masl. A randomized complete block design was used with a 2 x 2 factorial arrangement. The first factor corresponded to Unica and Bicentenaria cultivars and the second factor to the planting densities of 3.33 and 4.00 seed tubers per m2, with four replications per treatment. The characteristics evaluated were foliage weight, tuber weight per plant, number of tubers per plant, and tuber yield. For the comparison of treatment means, the Tukey test was used at 5% significance. Results: It has been observed a significant interaction between cultivars and planting densities in fresh weight of foliage and tuber weight per plant. The cultivar Bicentenaria was superior to Unica by producing a significantly higher weight of foliage in both planting densities, however, for the weight of tubers per plant, Unica was superior to Bicentenaria. Regarding the number of tubers per plant, Bicentenaria was superior to Unica, while for tuber yield, the highest values were obtained by cv. Unica cultivar. Conclusions: It is concluded that under the conditions of Vinto (Barranca) cv. Unica was superior in tuber yield to cv. Bicentenaria and that at a higher planting density, an increase of 17% in the total yield per hectare was obtained.Downloads
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