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Previous issue date: 2010 / A batata-doce (Ipomoea batatas (L.)), esp?cie pertencente ? fam?lia Convolvulaceae, ? uma planta r?stica, cultivada principalmente por pequenos produtores. Apesar de ser uma das oler?colas mais cultivada no Brasil e apresentar grande potencial de uso na alimenta??o humana, animal e industrial, tem sido pouco estudada. O objetivo deste trabalho foi identificar clones superiores e avaliar a produ??o e a qualidade de ra?zes, ramas e silagem de ramas de clones de batata-doce em diferentes ?pocas de colheita e ambientes de cultivo. Foi realizado um experimento no Campus II e outro na Fazenda Forquilha, ambos localizados no munic?pio de Diamantina-MG, com tr?s ?pocas de colheita. Foram avaliados nas ra?zes tuberosas: a produtividade total, produtividade comercial, peso m?dio total, peso m?dio comercial, resist?ncia a insetos de solo, formato de ra?zes, prote?na bruta, fibra bruta, cinzas, amido, compostos fen?licos e herdabilidade. Na parte a?rea foi avaliado a produtividade de mat?ria verde, teor de mat?ria seca, produtividade de mat?ria seca, prote?na bruta e fibra bruta. Foi feito silagem das ramas aos 150 dias ap?s a colheita na Fazenda Forquilha, onde foi analisado prote?na bruta, FDA, FDN, NDT, pH, mat?ria seca, hemicelulose e nitrog?nio amoniacal em rela??o ao nitrog?nio total. Atrav?s dos resultados apresentados, percebe-se que Os clones BD-25, BD-38 e BD-45, na Fazenda Forquilha, apresentaram as maiores produtividade totais e comercial de ra?zes e devem ser colhidas mais tardiamente. A Fazenda Forquilha foi o local onde os clones de batata-doce apresentaram, em m?dia, as maiores produtividades totais e comercial de ra?zes e os maiores pesos m?dios de ra?zes total e comercial. As menores notas para formato de ra?zes foram obtidas nas colheitas mais precoces. Os teores de prote?na bruta, fibra bruta, cinzas e amido, na mat?ria seca de ra?zes, n?o foram influenciados pelos ambientes de cultivo. Para obten??o de maiores produtividades de mat?ria verde e mat?ria seca, as ramas devem ser colhidas at? 150 dias ap?s o plantio. Na Fazenda Forquilha foram obtidas as maiores produtividades de mat?ria verde e mat?ria seca das ramas. Os teores de mat?ria seca nas ramas aumentam com o ciclo da cultura. As ramas de batata-doce 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, 2009. / ABSTRACT The sweet potato (Ipomoea batatas (L.)), species belonging to the family Convolvulaceae, is a rustic plant, grown mainly by small producers. Despite being one of most vegetables grown in Brazil and show great potential for use in food, animal and industrial, have been little studied. The objective was to identify superior clones and assess the production and quality of roots, stems and branches of silage from sweet potato clones in different harvesting periods and environments of cultivation. An experiment was conducted on campus and another on Farm II forks, both located in the city of Diamantina-MG with three seasons of harvest. Roots were evaluated in the total yield, commercial yield, total weight, weight commercial, insect resistance of soil, shape of roots, crude protein, crude fiber, ash, starch, phenolic compounds and heritability. In shoots was evaluated the yield of green matter, dry matter yield of dry matter, crude protein and crude fiber. Silage was made of branches to 150 days after harvest at Farm forks, where it was considered crude protein, ADF, NDF, TDN, pH, dry matter, hemicellulose and ammonia nitrogen in relation to total nitrogen. The results presented, we find that the BD-25 clones, and BD-38 BD-45, at Farm forks, submitted the highest total and commercial yield of roots and should be harvested later. The Farm was the fork where the sweet potato clones showed, I mean, the highest total and commercial yields of roots and the highest average weight of roots and total trade. The lowest notes to format roots were in earlier harvests. The crude protein, crude fiber, ash and starch in dry matter of roots were not influenced by the environment of cultivation. To obtain higher yields of green matter and dry, the stems should be harvested up to 150 days after planting. Farm forks were obtained in the highest yield of green matter and dry matter of branches. The dry matter in branches increased with the crop cycle. The stems of sweet potato, have potential for use in animal feed, both as fresh and as silage.
| Identifer | oai:union.ndltd.org:IBICT/oai:acervo.ufvjm.edu.br/jspui:1/545 |
| Date | 12 February 2009 |
| Creators | Viana, Daniel Jos? Silva |
| Contributors | Andrade J?nior, Valter Carvalho de, Gomes, Luiz antonio Augusto, Fernandes, Jos? Sebasti?o Cunha, Ribeiro, Karina Guimar?es, 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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