| Usage of Chitosan Nanoparticles for Improve of Barley Yield under Drought Stress |
| Paper ID : 1700-UFGNSM |
| Authors: |
|
Zeinolabedin Tahmasebi Sarvestani * Department of Agronomy, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran |
| Abstract: |
| As a step toward profitable employment of nanoparticles (NPs) in agriculture, effects of chitosan NPs was probed on growth and yield of barley under late season drought stress. A factorial experiment (2×2×4) was performed based on a randomized complete block design in three replications. The experimental factors included the NPs concentrations (0, 30, 60 and 90 ppm), method of application (foliar and soil application) and irrigation regimes (normal irrigation and removal of irrigation 15 days after pollination). Seeds were separately planted in pots. Then, the above concentrations of the NPs were added to them through soil and foliar application (in three stages). Results indicated that main effects and interaction of the above treatments had significant effects on the most traits, such as spike length, peduncle length, spike weight, grain nitrogen, grain potassium, grain phosphorus, grain water soluble carbohydrate (WSC), and grain yield. Using the chitosan NPs, especially 60 and 90 ppm, significantly increased the grain yield compared to the control. There was no significant difference between two application methods of the NPs in most studied traits. The results highlighted that using the chitosan NPs in both irrigation regimes can significantly improve majority of the studied traits compared to the control and mitigate the harmful effects of drought stress. |
| Keywords: |
| Growth Parameters, Barley, Yield, Phosphorus |
| Status : Paper Accepted (Poster Presentation) |
