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Differences in Vegetative Characteristics Among Four Populations of Senecio vulgaris L. Possibly Due to Interspecific Hybridization

1976; Oxford University Press; Volume: 40; Issue: 1 Linguagem: Inglês

10.1093/oxfordjournals.aob.a085103

1095-8290

J. L. MONAGHAN, Peter Hull,

Ruminant Nutrition and Digestive Physiology

Leaf vegetative characteristics of Senecio vulgaris plants were examined for evidence of introgression by Senecio squalidus. S. vulgaris plants are shown to be more similar to S. squalidus in an area of high S. squalidus frequency than elsewhere, but the expected greater similarity of the radiate form of S. vulgaris to S. squalidus is seen only in one of the three characteristics studied. A possible explanation for these latter results is given.