Abstract
Twelve Species of Brassica and allied genera collected from different ecological niches by thc second auther were grown in sand culture with Arnon's nutrient solution supplemented with 0.00M, 0.05M and 0.1M NaCl. Leaf photosynthetic rate was reduced in plants applied with NaCl, but the degrees of reduction were different among species. The degree of reduction in the species collected from the coast was slight, on the other hand, the inland species showed a remarkable reduction in leaf photosynthesis.
