selection of sweet potato clones for the region alto vale do jequitinhonha seleção de clones de batata-doce para a região do alto vale do jequitinhonha

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ID: 145866
2009
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Abstract
An experiment was carried out from December 2005 to July 2006, in the Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), in Diamantina, Minas Gerais State, Brazil, aiming at selecting sweet potato clones for the Alto Vale do Jequitinhonha. We evaluated nine clones from the UFVJM germplasm bank, using cultivars Brazlândia Branca, Brazlândia Roxa, and Princesa as controls. The experimental design was blocks at random, with four replications. Plants were harvested seven months after transplanting. We assessed the fresh mass yield of vines and roots, as well as root shape and resistance to soil insects. Genotypes did not differ from each other for the fresh mass yield of vines (ranging from 3.81 to 11.76 t ha-1). The total yield of roots ranged from 22.0 to 45.4 t ha-1 and clones BD-06, BD-113-TO, BD-15, BD-38, BD-25, BD-61, and cultivar Princesa had statistically the highest figures. However, only clone BD-06 significantly overcame the control cultivars Brazlândia Branca and Brazlândia Roxa. Clone BD-06 had also the highest commercial yield of roots (38.58 t ha-1), statically similar to most of the other clones and cultivar Princesa (25.87 t ha-1), but superior to cultivars Brazlândia Branca and Brazlândia Roxa. Most of the clones tested, including clone BD-06, produced good shaped roots and were resistant to soil insects. Considering our results, clone BD-06 stood out as a good option for growing sweet potato in the Upper Valley of Jequitinhonha.
Com o objetivo de selecionar clones de batata-doce para a região do alto Vale do Jequitinhonha, conduziu-se um experimento de dezembro de 2005 a julho de 2006, no CampusJK da Universidade Federal dos Vales do Jequitinhonha e Mucuri, UFVJM, município de Diamantina-MG. Foram avaliados nove clones de batata-doce pertencentes ao banco de germoplasma da UFVJM, juntamente com as cultivares Brazlândia Branca, Brazlândia Roxa e Princesa, utilizadas como testemunhas. O delineamento experimental utilizado foi blocos casualizados, com quatro repetições. A colheita foi realizada sete meses após o plantio e foi avaliada a produtividade de massa verde e de raízes, além do formato e resistência das raízes a insetos. Os genótipos não diferiram entre si em relação à produtividade de massa verde, que variou de 3,81 a 11,76 t ha-1. A produção total de raízes variou de 22,0 a 45,4 t ha-1 e os clones BD-06, BD-113-TO, BD-15, BD-38, BD-25 e BD-61, além da cultivar Princesa, apresentaram os valores estatisticamente mais altos. Entretanto, apenas o clone BD-06 superou significativamente as cultivares testemunhas Brazlândia Branca e Brazlândia Roxa. O clone BD-06 apresentou também o maior valor absoluto para produção comercial de raízes (38,58 t.ha-1), estatisticamente similar à maioria dos demais clones e também à cultivar Princesa (35,87 t ha-1), mas superior às cultivares Brazlândia Branca e Brazlândia Roxa. A maioria dos clones avaliados, incluindo o clone BD-06, produziu raízes de bom formato e foram resistentes aos insetos de solo. Levando em conta os resultados obtidos, o clone BD-06 despontou como uma boa opção para o cultivo de batata-doce no Alto Vale do Jequitinhonha.
Reference Key
jnior2009horticulturaselection Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Valter C de Andrade Júnior;Daniel JS Viana;José SC Fernandes;José A Figueiredo;Ubirajara R Nunes;Irã P Neiva
Journal research on biomedical engineering
Year 2009
DOI
10.1590/S0102-05362009000300024
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000300024
Keywords
quality ipomoea batatas yield

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