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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Diversidade de acessos de jabuticabeira Sabar? em Diamantina/MG por meio da caracteriza??o biom?trica e f?sico-qu?mica dos frutos e fisiol?gica das sementes. / Biometrical and physical-chemical characterization of the accesses of the fruit tree jabuticaba 'Sabar?' in Diamantina/MG.

Guedes, Mayara Neves Santos 31 July 2009 (has links)
Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:37Z No. of bitstreams: 5 6.pdf: 1066209 bytes, checksum: 058c6f882c6e3f90fc4c3e91f973b983 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T19:37:15Z (GMT) No. of bitstreams: 5 6.pdf: 1066209 bytes, checksum: 058c6f882c6e3f90fc4c3e91f973b983 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T19:37:15Z (GMT). No. of bitstreams: 5 6.pdf: 1066209 bytes, checksum: 058c6f882c6e3f90fc4c3e91f973b983 (MD5) license_url: 49 bytes, checksum: fd26723f8d7edacdb29e3f03465c3b03 (MD5) license_text: 20626 bytes, checksum: 7851d446050a985bd0603b7c4cee472d (MD5) license_rdf: 19710 bytes, checksum: aa65da15f424ff71c620a992a187295c (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2009 / A jabuticabeira ? uma esp?cie frut?fera, bastante cultivada em pomares dom?sticos em Minas Gerais. No munic?pio de Diamantina/MG, apresenta relevante import?ncia socioecon?mica pelo grau de aceitabilidade de seus frutos e multiplicidade de uso. Todavia, ainda n?o existem variedades recomendadas para o plantio comercial, sendo que para a forma??o de novos pomares ? necess?rio dispor de material que re?na caracter?sticas favor?veis. O presente trabalho teve como objetivo realizar a caracteriza??o biom?trica e f?sico qu?mica de frutos e fisiol?gica de sementes de acessos de jabuticabeiras ?Sabar?? em Diamantina/MG, visando identificar materiais promissores para uso comercial e para futuros trabalhos de melhoramento gen?tico. De acordo com os resultados obtidos, os acessos de jabuticabeira (Myrciaria jabuticaba Berg), apresentam variabilidade para todas as caracter?sticas estudadas. Foi evidenciada a adequa??o de suas caracter?sticas biom?tricas e f?sico-qu?micas para consumo in natura e agroindustrial, sendo as melhores os frutos provenientes dos acessos A1, A2, A4, A22 e A23, enquanto os frutos dos acessos A8, A9, A13, A16 e A17, det?m de caracter?sticas antioxidantes naturais, podendo ser utilizada pela ind?stria aliment?cia. Atrav?s das caracter?sticas fisiol?gicas das sementes, os acessos A13, A20 e A17 se destacaram como fonte de material propagativo, por deter de maior vigor perante as caracter?sticas avaliadas. Os descritores rela??o DL/DT, n?mero de sementes, rela??o SST/ATT da polpa, umidade da polpa,di?metro longitudinal, flavon?ides da casca, rela??o SST/ATT da casca, tanino da casca, umidade da casca, ATT da polpa e poliembrionia, foram os que mais contribu?ram para a forma??o de grupos de acessos com caracter?sticas fenot?picas similares identificadas pela an?lise de agrupamento. Poucos s?o os estudos dessa esp?cie, deve-se ainda realizar um conjunto maior de pesquisas que parte da bot?nica e da gen?tica, incluindo acessos superiores, formas de propaga??o e melhor desenvolvimento, incorpora??o de produtos agroind?strias e seus valores comerciais. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2009. / ABSTRACT The jabuticabeira (Myrciaria jabuticaba Berg), fruit species in the family Myrtaceae, as remarkable for the degree of acceptability of their fruits. Considering the lack of information about this type aimed at working with the genetic divergence among accessions of jabuticabeira ?Sahara? through biometric descriptors and physico-chemical and physiological fruit with seed in order to subsidize the Genetic Improvement program for jabuticabeira in the city of Diamantina. It has been used multivariate analysis of variance (MANOVA), the criterion of Tocher and principal component analysis to determine the genetic divergence. Among the 32 descriptors evaluated, the principal component analysis allowed the elimination of 21, because they show redundant and/or little influence. The remaining 11 were responsible for 92.31% of the total variation. Tocher's grouping method applied to the matrix of Euclidean shape average of 3 groups, with the largest of which comprised 22 accessions. According to the results of the class of jabuticabeira "Sahara" there is a significant variability among the characteristics. Descriptors DL, DT, seed number, SST/ATT pulp, pulp moisture, longitudinal diameter, the bark of the flavonoids, SST/ATT bark, bark tannins, the moisture from the skin, pulp and ATT that contributed polyembryony a characterization of the accessions jabuticaba. Jabuticaba?s hits considered a satisfactory variation for future improvements and conservation organizations of the species. It is expected to use the most promising access due to the greater disparity has a better average performance of these accesses.

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