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Flavones cultivars

Hmamouchi, M. et al., Flavones and flavonols in leaves of some Moroccan Vitis vinifera cultivars. J. Agric. Food Chem. 47, 186, 1996. [Pg.311]

Certain flavonoids are used by plants to protect them from invasion by parasites. For example, poplar (Populus spp.) cultivars produce a chemical barrier to parasitization by mistletoe (Viscum album).Resistant poplar cultivars were significantly higher in flavonols and flavones compared to susceptible cultivars. Likewise, in Streblus asper the bark and wood of trees that are resistant to the parasite Cuscuta reflexa hold higher levels of flavonoids, as well as steroids and alkaloids. [Pg.422]

Both directly and indirectly, flavonoid composition affects the quality of individual citrus cultivars and hybrids. Some cultivars, such as the sour orange, are directly affected by the presence of bitter neohesperidosides to the point they are unpalatable. The quality of other cultivars may be indirectly affected due to the presence of bitterness suppressing flavone neohesperidosides. Certain hybrids, such as the K early, also contain bitter flavanone glycosides at levels which reduce its acceptability. Therefore, the knowledge of the relative type and... [Pg.96]


See other pages where Flavones cultivars is mentioned: [Pg.102]    [Pg.241]    [Pg.481]    [Pg.496]    [Pg.509]    [Pg.776]    [Pg.522]    [Pg.256]    [Pg.1568]    [Pg.317]    [Pg.707]   
See also in sourсe #XX -- [ Pg.339 , Pg.340 ]




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Cultivar

Flavone

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