تاثير مقادير مختلف كودهاي كم مصرف آهن و مس بر رشد و عملكرد ژنوتيپ هاي نخود تحت شرايط ديم منطقه اليگودرز- ازنا در استان لرستان

Growth and productivity of dryland chickpea (Cicer arietinum L.) under varying levels of Fe and Cu in Aligoodarz-Azna region, Lore Stan

From a total of 646,000 ha of lands under chickpea (Cicer arietinum L.) production in Iran, Lorestan state accounts for nearly 21 percent. In this western province, chickpea is traditionally spring-planted under dryland condition with no applications of micronutrients. A 3-replicate split-plot RCBD field experiment was conducted under dryland condition of Ali goodarz-Azna region during spring, in 2002. Four chickpea genotypes consisting of Hashem, Jam, ILC482 and Greet local mass were planted as main-plots. Four levels (0, 30, 43 and 56 kgha^-1) of ferrous sulfate (Fe) along with four levels (0, 17, 20 and 25 kgha^-1) of copper sulfate (Cu) were applied as subplots prior to seeding. Manual seeding was carried out with 33 plants/m^2 at April 8-9t, 2002 at a 6 cm depth. Among genotypes studied in this experiment, Hashem proved later in maturity, taller in height and lower in terms of all grain yield components, grain yield and harvest index and Greet appeared earlier in maturity and higher in terms of 100-grain weight and to some extent grain yield, compared to the rest of genotypes. With an increase in Fe level, both branching and grain yield components indicated a non-significant increase, leading to significant increases in average dry matter, grain yield and harvest index of the genotypes. Cu did not leave any significant impact on growth, yield components and grain yield of chickpea genotypes studied in this experiment. Despite a generally low grain yield obtained with the present genotypes under dry land condition of All goodarz-Azna, it could be concluded that with seeding at an appropriate early date and application of at least 30 kgha^-1,of Fe more grain yield might be produced from spring chickpea under dry land condition of this region.