enetic diversity among tomato’s subsamples for pre-breeding
| Autor: | João Paulo Alves de Castro, Carlos Nick, Carla do Carmo Milagres, André Pugnal Mattedi, Bruno Garcia Marim, Derly José Henrique da Silva |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Crop Breeding and Applied Biotechnology, Vol 10, Iss 1, Pp 74-82 (2010) |
| Druh dokumentu: | article |
| ISSN: | 1518-7853 1984-7033 |
| Popis: | The aim of this work was to evaluate 56 Solanum lycopersicon subsamples through agronomic descriptors,and to quantify their genetic diversity. Two essays were conducted with three replications in a randomized block design. Therewas significant variability among subsamples for all phenotypic descriptors. Four distinct groups were formed by the Tocherprocedure, and there was a projection of distances in the plan. The efficiency of the group was denoted by the low apparenterror rate of discriminant functions, 1.66%. The phenotypic traits that contributed most to the dissimilarity were: fruit length,width of the central axis, total commercial fruit number, commercial fruit weight and total fruit number. The followingsubsamples were considered promising for use in future breeding programs: BGH 7222, BGH 7267 and BGH 887, group 3,BGH 2143, BGH 6866 and BGH 7218, group 1 and the subsamples BGH 6889 and BGH 7213, group 2. |
| Databáze: | Directory of Open Access Journals |
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