THE INFLUENCE OF MINERAL DEFICIENCY ON VEGETATIVE GROWTH, FLOWER AND FRUIT PRODUCTION, AND MINERAL COMPOSITION OF THE PEANUT PLANT

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Abstract
Peanut plants were grown in sand culture with various nutrient solns. applied to the isolated rooting and fruiting media. Vegetative growth, fruit production, and mineral composition of plant parts were adversely affected if any macronutrient was withheld from the roots of the plants, following 80 days of growth on the complete soln., when the complete soln. was supplied continuously to the fruiting medium. Results show that the root is the primary absorbing organ of the peanut plant. The absorption of an element by the gynophores is insufficient to offset the appearance of nutrient deficiency symptoms of that element when it is withheld from the roots of the plant.