The dependence of photosynthetic yields on both sodium adsorption ratio and osmotic pressure of irrigation water is discussed. As a first example, Zea mays seedlings were exposed to C14O2 in closed photosynthetic chambers for 24 hrs. The chromatographic study of aqueous and alcoholic extracts as well as the hydrolyzed tissue are shown in special tables. Other data concerning respiration rate as well as carbohydrates and mineral metabolism are also studied.The respiration of two weeks old seedlings of Zea mays is compared with the photosynthetic process.

No abstract