Fruit size in kiwi trees based on the number of seeds

• Autor(a) principal: Anzanello, Rafael
• Data de Publicação: 2013
• Outros Autores: Souza, Paulo Vitor Dutra, Santarosa, Emiliano, Pezzi, Ernani
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Gaúcha (Online)
• Texto Completo: http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/127
• topic: Actinidia deliciosa. Pollination. Productivity. Fruit quality.; Actinidia deliciosa. Polinização. Produtividade. Qualidade de fruto.

This study evaluated the influence of the number of seeds of four kiwifruit cultivars aboutthe fresh weight, length and width of fruits. The research used four kiwifruit cultivars (Monty,Elmwood, Abbott and Bruno) grafted on rootstock 'Bruno', conducted in support system type T, withspacing of 6.00 m x 3.00 m, and mixed pruning system. Samples of 30 fruits per cultivar wererandomly collected in April 2008. The fresh mass, in grams, length and width of fruit, in millimeters,were associated with the number of seeds per fruit by regression analysis. The results showed that themajor number of seeds per fruit resulted in bigger size kiwis in all cultivars. The required number ofseeds per fruit to achieve standard commercial in Elmwood and Monty cultivars was approximately400 seeds, while for cultivars Bruno and Abbott it was approximately 600-700 seeds. The fruit shaperanged according to the cultivar: Elmwood and Monty had larger mass and diameter per fruit, whileBruno had the largest relation between fruit length and diameter. An effective pollination must becarried in kiwifruit orchards for obtaining larger fruit size and higher productivity levels.