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Almundena Bayo-Canha Luciana Delgado-Benarroch Julia Weiss Marcos Egea-Cortines 《Scientia Horticulturae》2007
We have studied the effect of artificial modification of leaf area on inflorescence and floral quality in Antirrhinum majus. We used two treatments where we clipped all the leaves except the first three pairs of true leaves, or we cut every leaf visible by the time the plant had six leaf pairs. Decreased leaf area caused a decrease in stem elongation that could be traced back to a decrease in internode elongation. Leaves left on the plant increased their size beyond control. Inflorescence quality was strongly affected since total floral number showed a strong decrease with reduced leaf area. In contrast, floral size hardly changed. Breeding programs in Antirrhinum should take into account growth conditions affecting leaf area when searching for changes in inflorescence quality while floral size can be screened independently of this factor. 相似文献
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Almudena Bayo-Canha José Ignacio Fernández-Fernández Adrian Martínez-Cutillas Leonor Ruiz-García 《Euphytica》2012,186(2):393-407
The aim of this work was to study the phenotypic segregation of different agronomic and fruit quality traits, and their relationships,
in Monastrell × Syrah wine grape progeny. Twenty-two agronomic traits were evaluated and compared for three consecutive years
in this progeny. The results show the phenotypic diversity existing in a cross between two different wine grape cultivars.
Most of the phenological, productive, morphological, and enological parameters evaluated displayed continuous variation within
the progeny, suggesting a polygenic inheritance. Some correlations between traits were detected by the Spearman correlation
test, although high coefficients were not found for most of them. Cluster analysis of the progeny grouped the hybrids based
on criteria with significance for wine grape breeding. Also, we investigated the relationship between the skin color and total
content of anthocyanins with the VvmybA genotype, using the CAPS (Cleaved Amplified Polymorphic Sequence) marker 20D18CB9. The results show that hybrids with two
copies of the functional color allele tend to have increased anthocyanins content. Based on this study, 14 genotypes were
pre-selected from the breeding population for additional quality studies. 相似文献
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