Effect of Zn and Fe foliar application on grain sorghum under drought stress
Author(s):
Abstract:
In order to study drought stress, Zn and, Fe foliar application on grain yield and yield components of sorghum (sorghum bicolar L. Moench)in Sistan region, an split plot experiment was carried out base on randomized complete block design with 3 replications during summer2010. Three irrigation levels (normal irrigation, pre-anthesis drought stress and post-anthesis drought sress) ialocated in main plots. Four foliar application levels(Zinc, Iron, Zinc + Iron and control) were also ialocated on sub plots. Development stages were evaluated under different irrigation and foliar application levels,Characteristics such as seed yield, harvest index, biological production and protein percent were estimated after harvesting. Results showed that the effect of drought stress was significant on grain yield and harvest index and the effect of foliar application was significant on all of the studied characters. Interactions between foliar application and drought stress on all of the treats were not significant. Therefore, the treatment of Fe and Zn foliar application along with normal irrigation was suggested as the best treatment for obtaining the heighest yield.
Keywords:
Language:
Persian
Published:
Journal of Applied Crop Research, Volume:27 Issue: 102, 2014
Pages:
190 to 196
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