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Assessment of the rose bush floribundity and architecture
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Edité par CCSD -
International audience. Floribundity defined as “the capacity of a plant to produce abundant flowers at high density on each of its branches”, is a key element of the aesthetic quality of the ornamental plants. In the case of many species, including the rosebush, this feature is strongly related to the plant architecture which is determined by the genotype, the environment and the crop management. To address these questions, the Architecture and Environment (ARCH-E) team of the Research Institute on Horticulture and Seeds (http://www6.angers-nantes.inra.fr/irhs) in collaboration with the Genetic determinism & Diversity of Ornamental plants (GDO) team of the same institute, is developing an integrative research program whereby environmental effects on the establishment of the plant architecture are examined from the molecular to the whole plant levels using plant sciences (physiology, genetics, molecular biology, biochemistry…), sensory analysis and modelling studies. The aim of the poster is to present a review of the studies (listed below) managed by the team, focusing on methods to assess and compare the floribundity of some rose cultivars, considered as example varieties by the International Union for the Protection of New Varieties of Plants (UPOV).
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