تاثير سطوح مختلف مس بر رشد و تركيب شيميايي گندم رقم فلات

Effects of different levels of copper on growth and chemical composition of wheat variety Falat Staff

The purpose of this research is to evaluate the response of wheat to Cu application into the soil. Twenty six samples of surface soil with different DTPA-extractable Cu and chemical and physical properties were selected for this study. Furthermore, the effects of three Cu levels (0, 2.5 and 5 ug / g"1 of soil as CuS04.5H20) on growth and chemical composition of wheat variety Falat was studied in a 12-week greenhouse experiment in 1999. Treatments were arranged in a factorial manner in a complete randomized design with three replicates. The results indicated that the application of 2.5 ug Cu g¯¹ of soil increased dry matter significantly and in 5 mug Cu g"ʹ of soil difference was not significant. Copper application affected the Cu concentration in aerial parts of plant significantly such that increased from 7.6 in zero level to 8.1 and 8.87 ug g"ʹ dry matter in levels of 2.5 and 5 ug Cu g"ʹ of soil, respectively. Cu application affected the total Cu uptake by plant as well. Regression analysis showed a significant correlation between DTPA-Extractable Cu and total Cu uptake by wheat.