دور الصنف و ســــماد الـ NPKZn وحامــض الجـــبرليـن فــــي المؤشرات الكيميائية للجزء الخضري لنبات القمح . ( L. Triticum aestivum

Abstract

This field experiment was conducted at the Botanical Garden of the Department of biology.,Ibn al-Haytham. Baghdad University during the growing season 2013-2014 to study the effect of add and deffrent the level of 160 kg .H-1 of NPKZn. Fertilizer and spraying the Gibberellinic acid for forth concentrations (25,50,100,150) mg.lt-1, as well as the coefficient control and overlap in the content of nitrogen, phosphorus , potassium, calcium, magnesium and zinc of vegetative part of the three varieties of wheat . experiment was designed with Rondomize Complet Block Design RCBD with three replicates, and the results showed the following: Add of fertilizer and spraying by Gibberellin both individually or overlap has led to significantly increased the content average of the above elements as compared with the coefficient control and exceed about 100 mg. lt -1 of Gibberellin to give it best averages for characteristics studied.المقدمة