Effect of The herbicide Pendimethalin on The Chlorophyll Content in Zea mays l. and Gossypium hirsutum l. Seedlings

Document Type : Original Article

Authors

Dept.Botany,Fac.Science,Khartoum Univ.,Sudan

Abstract

Foliar application of pendimethalin herbicide (5 ppm) to three weeks old seedlings of Zea mays L. and GossypiumhirsutumL. resulted in a decreasing trend of chlorophylls a an b in both seedlings compared to controls. Chlorophyll b excelled chlorophyll a in maize, whereas in cotton a reverse manner was observed. The chlorophyll ratio a/b in cotton surpassed the chlorophyll ratio in maize.