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