Aspectos relativos à produtividade de genótipos de mandioquinha-salsa (Arracacha xanthorrhiza)

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Abstract
The quality and preparation of arracacha propagules are key factors affecting root yield; however, studies on this approach remains limited. This study aimed to evaluate the effects of propagule size and cutting on the yield of the cultivar Amarela de Senador Amaral and to compare its productive performance with that of other cultivars. Experiments were conducted in Canoinhas, Santa Catarina, using a randomized complete block design with seven replications and plots consisting of five plants. In the first experiment, three propagule sizes (large, medium, and small) were evaluated. In the second, medium-sized propagules were subjected to two treatments: bevel cutting and no cutting. In the third, the cultivar Amarela de Senador Amaral was compared with the cultivars BRS Rubia 41, BRS Catarina 64, and BRS Acarijó 56. The number of commercial roots, root mass, and average commercial root mass were assessed. It was observed that cutting the propagules increased the number of commercial roots and overall yield, although it reduced average root mass. Large and small propagules resulted in higher yields than medium-sized propagules. The cultivar BRS Acarijó 56 showed superior productivity and greater average commercial root mass compared with the other cultivars evaluated.

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