EFFECT OF WATER STRESS AND HILL SPACING ON SEED YIELD AND SOME GROWTH TRAITS OF SUNFLOWER | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 43, Issue 4, August 2013, Pages 14-27 | ||
| Author | ||
| Shatha A.H. Ahmed | ||
| Abstract | ||
| To study the effect of different water regimes and hill spacing on some growth traits, grain yield, consumptive use and water use efficiency of sunflower, a field trial was conducted at experimental farm, College of Agriculture, Abu Ghraib, Baghdad, Iraq, during the fall season of 2009 and 2010. A factorial arrangement in a randomized complete block design with three replications was used. Control treatment [(S1) a depletion of 50% of available water] and three other treatments S2, S3, S4 which represented 75%, 50% and 25% of the water amount of the control. Results showed that there was no significant difference between S1 (control treatment) and S2 irrigation treatment (75% of the watering amount of the control) in grain yield , leaf area index , plant hight , stem diameter , head size , and number of seed / head which means a 1200 m3 amount of water per / ha could be saved in both seasons.Plant population had significant effect on some growth traits under investigation. Increasing plant population from 44400 to 66666 plant / ha by change in distance within the plants increasing the values of plant hight, leaf area index, grain yield, water use efficiency. We therefore recommend that in the case of limited possibility of irrigation water by 75% by the need of full irrigation (50% depletion of available water) without a significant decrease in product of the grain yield. | ||
|
Statistics Article View: 8 PDF Download: 2 |
||