The aim of this work was to verify the performance of seven advanced potato clones in relation to yield components, compared to varieties grown in large scale in Brazil. The experiment was carried out in the experimental field of Embrapa Produtos e Mercado, Canoinhas, Santa Catarina state, Brazil. Seven advanced potato clones developed in Embrapa Potato Breeding Program, and two commercial cultivars (Agata and Asterix) were evaluated in the spring season of 2012. A randomized complete block design with four replications of 10 plants per plot was used. Plants of each plot were harvested 110 days after planting, and evaluated for yield components. The data were submitted to analysis of variance, grouping means by the Scott & Knott test and phenotypic correlation. Except F22-08-01, all clones exceeded the control cultivars for yield trait components, mainly the clones F74-08-09 and F17-08-01. The total tuber yield was mainly determined by the average tuber mass and little influenced by the total number of tubers per plant, while marketable tuber mass was similarly determined by the marketable tuber number and average tuber weight.
Solanun tuberosum ; tuber mass; advanced clones
