Mineral nutrition of sugar cane (Saccharaum officinarum spp) var. CB 41-76 grown in nutrient solution

Abstract

The present work was carried out in order to study: 1. The symptoms of deficiency of macro and micronutrients; 2. The modification induced by those treatments in the histological make up of the leaves; 3. The effect of the deficiency on the chemical composition of leaves (+1, +2, +3), (+4, +5, +6), (+7, +8, +9) and sheats (+4, +5, +6). Young sugar cane plants were grown in nutrient solution, two treatments being used: complete solution (HOAGLAND & ARNON, 1950), deficient solution, in which a given nutrient were omited. Symptoms of malnutrition were observed in all treatments. The deficiencies affected the characteristic of the chloroplast observed through the histological examinations. Non deficient and deficient levels for the macronutrientes in the leaves expressed in function of the dry matter were.