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Previous issue date: 2010 / Objetivou-se, com este trabalho, selecionar clones de batata-doce com potencial de utiliza??o na alimenta??o humana e animal. O trabalho foi realizado no setor de Olericultura e nos Laborat?rios de T?cnicas Diet?ticas e Tecnologia de Biomassa do Cerrado do Campus JK da UFVJM, em Diamantina-MG. Foram avaliados a produtividade total de ra?zes, produtividade comercial de ra?zes, peso m?dio de raiz comercial, formato de ra?zes, resist?ncia a insetos do solo, teor de mat?ria seca das ra?zes e caroten?ides totais. Al?m dessas caracter?sticas foram avaliadas tamb?m as caracter?sticas f?sicas e sensoriais: colora??o da polpa, textura e maciez, do?ura da polpa, tempo de cozimento e aceitabilidade das ra?zes aos clones de batata-doce. Para estudo do potencial de utiliza??o na alimenta??o animal foram avaliados a produtividade de massa verde, o teor de mat?ria seca e a produtividade de massa seca das ramas. J? a silagem das ramas foi avaliada quanto ao teor de mat?ria seca, prote?na bruta, FDA, FDN, NDT, pH, F?sforo, C?lcio e S?dio. O experimento foi conduzido em blocos ao acaso (DBC), compreendendo 12 clones e 4 repeti??es. As parcelas constaram de uma fileira de 4,5 m de comprimento, utilizando o espa?amento de 1,0 m entre fileiras, por 0,30 m entre plantas, totalizando 15 plantas por parcela. Para a an?lise sensorial foram utilizados 40 provadores, n?o treinados, para cada clone. Os clones avaliados fazem parte do banco de germoplasma da UFVJM, sendo: BD-06, BD-25, BD-15, BD-38, Cambraia, BD-31-TO, BD-67, BD-45, BD-42, BD-54 e as cultivares Brazl?ndia Branca e Brazl?ndia Rosada. Foram observadas diferen?as significativas entre os clones para as caracter?sticas de produtividade comercial de ra?zes, resist?ncia a insetos, teor de mat?ria seca e caroten?ides totais das ra?zes dos clones de batata-doce. Os clones avaliados apresentaram caracter?sticas de produ??o comparadas ?s cultivares comerciais Brazl?ndia Branca e Brazl?ndia Rosada. Os clones BD-25, BD-54, BD-31-TO e Cambraia obtiveram notas para avalia??o quanto ? resist?ncia a insetos de solo abaixo de 2,0, sendo considerados resistentes a insetos de solo. Os clones BD-54, BD-31-TO, Cambraia e BD-45 apresentaram alto teor de mat?ria seca nas ra?zes. J? o maior conte?do de caroten?ides nas ra?zes foi obtido pelo clone BD-67. Os clones BD-06, BD-38, Cambraia, BD-31-TO, BD-67, BD-42, BD-54 e as cultivares Brazl?ndia Branca e Brazl?ndia Rosada apresentaram ?ndice de aceitabilidade acima de 70%, sendo aceitos pelos consumidores. Os clones avaliados apresentaram produtividade de massa verde e de massa seca das ramas comparadas ?s cultivares comerciais Brazl?ndia Branca e Brazl?ndia Rosada. N?o houve diferen?a na produtividade de massa verde e de massa seca das ramas entre os clones de batata-doce. N?o foram encontradas diferen?as entre os clones quanto ao teor de prote?na bruta da silagem de ramas. As ramas de batata-doce da maioria dos clones estudados apresentam potencial de utiliza??o na alimenta??o animal, tanto na forma fresca como na forma de silagem. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2010. / ABSTRACT The objective of this study was to select clones of sweet potato with potential for use in human and animal feed. The work was carried out at the Vegetable and Dietetic Techniques Laboratory and Biomass Technology of Cerrado of Campus JK - UFVJM in Diamantina-MG. We evaluated the total yield of roots and commercial yield of roots, average weight of commercial roots, shape of roots, soil resistance to insects, dry matter content of roots and total carotenoids. Besides these characteristics there were also evaluated the physical and sensorial characteristics: the squash color, texture and softness, sweetness of the squash, cooking time and acceptability of sweet potato clones in the roots. In the aim to study the potential use of these clones in animal feed there were evaluated the yield of green matter, dry matter content and yield of dry mass of branches. The silage of the branches was evaluated for dry matter, crude protein, ADF, NDF, TDN, pH, Phosphorus, Calcium and Sodium. The experiment was conducted in a randomized block design (RBD), including 12 clones and 4 replications. The plots consisted of one row 4.5 m long, using the 1.0 m spacement between rows by 0.30 m between plants, totaling 15 plants per plot. For the sensorial analysis were used 40 untrained tasters for each clone. The clones are part of the germplasm bank of UFVJM, as follows: BD-06, BD-25 BD-15 BD-38, Batiste, BD-TO-31, BD-67 BD-45 BD-42, BD-54 and Pink and White Brazlandia. There were observed significant differences between the clones for the characteristics of commercial yield, resistance to insects, dry matter content and total carotenoids in roots of sweet potato clones. The evaluated clones showed similar characteristics of yield when compared to commercial cultivars Pink and White Brazlandia. The clones BD-25 BD-54 BD-31-TO and Batiste scored in evaluation for resistance to insects of soil below 2.0 and were considered resistant to soil insects. Clones BD-54 BD-31-TO, Batiste and BD-45 had high dry matter content in roots. The highest content of carotenoids in roots was obtained by clone BD-67. Clones BD-06, BD-38, Batiste, BD-TO-31, BD-67 BD-42 BD-54 and Pink and White Brazlandia had a level of acceptability above 70%, being accepted by consumers. The clones showed productivity of green mass and dry mass of branches similar to Pink and White Brazlandia commercial cultivars. There was no difference in yield of green mass and dry weight of branches among the clones of sweet potato. There were no differences between the clones on the crude protein content of silage forms. The branches of sweet potatoes in the majority of the clones showed potencial use for animal feed, either as fresh as in the form of silage.
| Identifer | oai:union.ndltd.org:IBICT/oai:acervo.ufvjm.edu.br/jspui:1/537 |
| Date | January 2010 |
| Creators | Figueiredo, Jos? Altair |
| Contributors | Ribeiro, Karina Guimar?es, Pinto, N?sia Andrade Villela Dessimoni, Brand?o J?nior, Delacyr da Silva, Andrade J?nior, Valter Carvalho de, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM) |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFVJM, instname:Universidade Federal dos Vales do Jequitinhonha e Mucuri, instacron:UFVJM |
| Rights | info:eu-repo/semantics/openAccess |
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