POPULATIONS DU LATHYRUS PRATENSIS L.

Summary Mathematical analysis of the flavonoid pattern of twenty populations of Lathyrus pratensis shows that there is no difference between diploid and tetraploid samples in flavonoid metabolism. But we noted obvious differences between the populations growing in a wet habitat and those growing in a dry one, the flavonoid biosynthesis evolution of these being more advanced. Moreover, in both diploids and tetraploids, the hypothesis of ancestors from different geographical origins is reinforced by slight variations in the flavonoid metabolism expression on the samples studied.