Effect of Cutting Type , Growth Regulator Seradix 2 and Planting Media on Seedlings of Black Poplar Populus nigra L. | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 16, Issue 2, June 2016, Pages 76-85 | ||
| Authors | ||
| Kana Ali Mahmood; Othman Omar Ali | ||
| Abstract | ||
| This study was carried out during the period between March 5 and October 1, 2011 at the Experimental Field of the Faculty of Agricultural Sciences, University of Sulaimani, locating on 2.5 kilometers southwestern of Sulaimani city with an altitude of 748 meters above mean sea level, to find out the effect of cutting type, the plant growth regulator (Seradix 2) and growth media on the improvement of rooting of cuttings, vegetative and root growth characteristics of black poplar seedlings, using three types of cuttings; terminal (softwood), intermediate (semi-hardwood) and lateral (hardwood) cuttings, Seradix 2 and two types of growth media; field soil only (silty clay soil) and field soil after the addition of sieved construction sand, in a factorial RCBD experiment in three replications, the means were compared according to Duncan's multiple range test (P ≤ 0.05). The obtained results showed that treated terminal cutting by Seradix 2 wich is planted in media that added pure sand to the soil showed the same trends that have been shown for each dual factor and individually gave significant highest result for all growth characters (rooting success percentage, number of branchseedling, number of leavesseedling, length of seedling, stem diameter ,fresh weight of shoot system ,dry weight of shoot system ,number of lateral rootseedling ,fresh weight of root system and dry weight of root system. | ||
| Keywords | ||
| Cutting type; Growth Regulators; Seradex; planting media; black poplar | ||
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