Differences in the barley varieties have been revealed from tolerance to iron (Fe) and aluminum (Al) ions as well as to their combined effect. Received results
A study of pollen morphology, in species of the genera Bauhinia and Phanera (Leguminosae-Caesalpinioideae) which occur in the Brazilian caatinga, is presented.
Two species of Calystegia, C. soldanella and C. japonica which both are vine perennials belong to Convolvulaceae habituated in extremely different environment.