The effect of different tillage systems on the yield and incidence of root and stalk rot of sorghum

Abstract

The effect of different tillage systems on grain yield, root and stalk rot of sorghum (Sorghum bicolor (Moensch) L) was studied over four seasons at Potchefstroom. Seasonal effects were apparent for all parameters, indicating significant environmental effects. Tillage treatments had no significant effects on grain yield and root and stalk rot of sorghum. Positive correlations existed between grain yield and root rot at the soft dough stage and root rot and stalk rot at soft dough and harvest.L'effet de plusieurs systemes appliques sur le rendement de grain, racine et tige du sorgho (Sorghum bicolor) etait etudie pendant quatre saisons a Potchfstroom. Les effets saisonniers etaient presque apparents au niveau de tous les Parametres, indiquant les effets considerables de l'environement. Les traitements pendant la culture n'ont pas eu des effets considerables sur les rendements des grains, racines et tiges du sorgho. Les correlations positives ont existe entre le rendement des grains, racines et tige pendant le stade doux du ble et la recolte