Abstract

SEMINARIO CUNYA, Juan F; SEMINARIO CUNYA, Alejandro; DOMINGUEZ PALACIOS, Antenor  and  ESCALANTE ZUMAETA, Berardo. Harvest performance of seventeen potato cultivar (Solanum tubersosum L.) from the Phureja group. Scientia Agropecuaria [online]. 2017, vol.8, n.3, pp.181-191. ISSN 2077-9917.  http://dx.doi.org/10.17268/sci.agropecu.2017.03.01.

The objective of the research was to evaluate the yield of tubers and related variables of 17 potato cultivars of the Phureja group from the Cajamarca-Peru region. The experiment was carried out in the Cajamarca Valley (2650 masl) in a randomized complete block design, with 17 treatments (cultivars) and three replications, planted at 0.90 m between rows and 0.40 m between plants. Plant height, number of stems, number and total weight of tubers, number and weight of commercial tubers, dry matter of tubers and foliage (%), crop index, specific gravity and yield of tubers per hectare were evaluated. Data were analyzed using analysis of variance and Tukey's multiple rank test (p ≤ 0.05). The yield of tubers varied from 8.2 t∙ha-1 to 27.4 t∙ha-1 and the average was 15.5 t∙ha-1. The average harvest rate was 65%. Commercial tubers were between 49% and 97%. The cultivars showed highly significant statistical differences in yield per hectare, plant height, number of stems, total number of tubers, number of commercial tubers and weight of commercial tubers. Nine cultivars were statistically similar and superior to the rest, in yield of tubers per hectare. One cultivar was superior to all others, in yield of commercial tubers

Keywords : Creole potato; Phureja group; yield; harvest index.

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