Paper Details

Determine the best density and appropriate planting time of Achillea millefolium

Mahtab Pouyanfar, Fazlullah Safikhani, Pejman Moradi

DOI: https://dx.doi.org/10.12692/ijb/4.2.239-243

Int. J. Biosci. 4(2), 239-243. January, 2014. (PDF)

Abstract:

In order to investigate the effect of planting time and density of Achillea millefolium under field condition, this project was performed at Forest and Rangelands Research Institute, Karaj, Iran in 2011. The experiment was conducted as split plot in the form of a randomized complete block design with three replications. The main factor was four planting times (6 March, 26 March, 14 April and 5 May) and the sub factor was three density included 100 plants per square meter (10×10cm), 25 plants per square meter (20×20cm) and 11 plants per square meter (30×30cm). The analysis of variance showed that the effect of planting time, density and their interaction significantly affected all measured traits. The highest plant fresh weight (161.23g), inflorescence (4.75cm) and stem height (57.77cm) was observed in the second planting time. The highest number of sub stem (14.83n/p) and canopy diameter (22.58cm) belonged to planting spaces of 30×30cm. The highest plant weight (139.33g), root length (20cm), inflorescence (4.06cm) and stem height (54.75cm) was observed in treatment 20×20cm. The results indicated that among the four planting times, the first and second planting time provide more opportunities for growth and density of 30×30cm provides sufficient space for plant growth. So, For high production in the first year of planting, it’s recommended from 15 March to late April. Spacing of 30×30cm was detected the best planting interval for the first year. And considering that Achillea millefolium is a perennial plant, planting intervals greater than 30×30cm may be more suitable for the next years.