mutante somático sem sementes em videira 'niagara rosada' seedless somatic mutant in the niagara red grape cultivars

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ID: 188749
1988
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Abstract
É relatada a ocorrência de mutação somática provocando apirenia no principal cultivar de uvas para mesa em São Paulo, Niagara Rosada. O mutante, surgido em Jundiaí, SP, em 1982, apresenta a mesma coloração das bagas, porém as dimensões físicas são drasticamente reduzidas, como o peso do cacho (237%) e das bagas (218%), o comprimento e a largura dos cachos (33 e 70%) e das bagas (58 e 43%). A partir desse mutante, constituiu-se novo cultivar, que recebeu a denominação de Rosinha. Discute-se seu grande potencial em vista da vantagem da apirenia, tanto para o produtor como para o consumidor, e seu uso como progenitor masculino em programas de melhoramento genético de uvas para mesa.
A somatic mutation occurred in 1982 in the Niagara Red, the main table grape cultivars in the State of São Paulo, Brazil, is reported. The mutant shows the same berry color as the original one but its physical dimensions were drastically reduced: bunch weight (237%) and berry weight (218%); bunch length and width (33 and 70%) and berry length and width (58 and 43%). The outstanding characteristic by which the mutant differs from the original is the seedlessness. It is expected that the new cultivars, due to its seedlessness, can be of great value to grape grower and to the final consumer. Moreover, the cultivars can be used as male parent in breeding programs considering its seedlessness and as a source of disease resistance. The cultivar is named "Rosinha" (little rose in Portuguese) or Niagara Red Seedless.
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Authors ;Erasmo José Paioli Pires;Celso Valdevino Pommer;Ilene Ribeiro da Silva Passos;Maurilo Monteiro Terra
Journal revista espanola de salud publica
Year 1988
DOI
10.1590/S0006-87051988000200003
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