University of Kirkuk Kirkuk University Journal for Agricultural Sciences (KUJAS) 2221-0482 5 2 2014 12 01 Efficiency of Corn (Zea mays L.) Varieties Grown in Zinc_Deficient Calcareous Soil 33 42 97253 10.58928/ku14.05207 EN Sadullah N. AL-Niemi IRAQ F.A.Sied Hassan IRAQ K.E. AL-Hadidi IRAQ A.M. Ali IRAQ Journal Article 2014 12 01 Greenhouse experiment was carried out to screen ten corn varieties for zinc efficient and inefficient grown in Zn deficient silty clay loam soil which characterized by high pH, high level of calcium carbonate and low organic matter. In general zinc deficiency produced plants with low leaf area, plant height , root depth and low shoot and root dry matter production. Corn varieties were different in their Zn efficiency. Under Zn deficiency Bakistani/1 variety showed better Zn efficiency based on root dry weight, plant height and root depth efficiencies (ranking first), and also had better leaf area (ranking second) and shoot dry matter production (ranking third) among the ten varieties. Zinc supply increased Zn, P and K content in roots and shoots of corn plants. https://kujas.uokirkuk.edu.iq/article_97253_51733a777ae310534681bf50f4281f40.pdf