Storage of Root Reserves in Rhodes Grass

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Abstract
Chloris gayana (Rhodes Grass) was grown under controlled conditions in pots receiving different fertilizer treatments and was harvested at 3 stages of maturity. Significant in-creases of the root system occurred in the well fertilized plants during the time of maturation, when growth of the aerial parts had already ceased. During this period con-siderable amts. of sugars, hydrolizable carbohydrates, N, P and K were lost from the shoots and were largely recovered in the roots, while root absorption from the soil continued to a certain extent. Abnormally developed deficiency plants showed in part a correspondingly abnormal behavior with regard to root storage and absorption.