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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/70153
Title: 
High temperature tolerance of determinate tomatoes in Brazil
Author(s): 
Institution: 
Universidade Estadual Paulista (UNESP)
ISSN: 
0567-7572
Abstract: 
The experiment was conducted in the experimental area belonging to the Section of Crop Production and Aromatic Medicinal Plants of the FCAV-UNESP, Jaboticabal Campus - Sao Paulo, Brazil. Tolerance to high temperature was studied in six determinate genotypes of tomato (Lycopersicon esculentum L.): Agrocica 8, Apex 1000, Botu-13, Calmech VFAS, Nemadoro and Jab-2, which were cultivated in a greenhouse at temperatures above 33oC for at least 2 h/day during blooming. The objectives of the study were to identify the genetic diversity of the genotypes studied and to determine their performance associated with tolerance to high temperature. Dissimilarity was determined by the generalized Mahalanobis distance. Delineation groups were optimized with the Tocher technique. A random block design was utilized with six treatments and with three replications. Two similarity groups were identified: 1 - Apex 1000, Botu-13, Calmech VFAS, Jab-2, Nemadoro and 2 - Agrocica 8. Crossing of genotypes within one group has no advantage because little genetic divergence and no heterotic response would be expected. However, the crossing of genotypes between groups is suggested. Knowledge of these groups will be important for efficiency future breeding efforts.
Issue Date: 
1-Dec-2007
Citation: 
Acta Horticulturae, v. 760, p. 303-306.
Time Duration: 
303-306
Keywords: 
  • Cultivars
  • High temperature
  • Lycopersicon esculentum
  • Performance
Source: 
  • http://www.actahort.org/books/760/760_39.htm
  • http://www.actahort.org/books/760/760_40.htm
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/70153
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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