The cyanogenic polymorphism in Trifolium repens is caused by the variation in two genes, the interaction of which produces four distinct cyanotypes. Along the Atlantic coasts of Bretagne, T. repens is sometimes found in populations mixed with the related species Trifolium occidentale, although the latter species usually occurs only in a narrow fringe along the coast, whereas T. repens is a more...

Assessing the spatial distribution of weeds within a field is key step to success site-specific weed management strategies. Centaurea diluta (knapweed) an emerging that causing major agronomic problem in southern and central Spain because its large size, difficulty controlling it, high competitive ability. The main objectives this study were examine variability C. density two wheat fields by mu...

Saw palmetto, Serenoa repens (Arecaceae), is a traditional medicine of American Indians of the southeast. The berries are used as medicine and as food. The leaves are used to make thatching, baskets, fans, brushes, brooms, rope, fire kindling, fish traps and dolls [1]. European immigrants to the Florida area learned from American Indians to use the berries as medicine. S. repens is the third mo...