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Effect of cutting type and Seradix 3 on rooting percentage and some characteristics of produced Paulownia's sapling Paulownia tomentosa L. | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 17, Issue 3, 2017, Pages 1-10 | ||
| Authors | ||
| Nashat Maulood Abdul Rahman; Othman Omer Ali; Kana Ali Mahmood | ||
| Abstract | ||
| This experiment was carried out during the period between February 20th and October 1st, 2016 in the Lath house at Nursery of the college of Agricultural Siences/ University of Sulaimani, Sulaimani city with an altitude of 748 meter above mean sea level, to find out the effect of cutting type (basal, intermediate and apical cuttings) and plant growth regulator (Seradix 3) on the improvement of rooting of cuttings, vegetative and root growth characteristics of Paulownia tomentosa, using a factorial experiment in a randomized block design (RCBD) in three replications, the means were compared according to Duncan’s multiple range test (P≤0.05). The data revealed that significant effect of cutting type and growth regulator on most of studied growth characters. The basal cutting has been superior significantly on the intermediate and apical cuttings, giving the highest results for; survival percentage 48.52%, length of sapling 17.05 cm, stem diameter 2.77 mm, fresh weight of shoot system 24.20 g, dry weight of shoot system 11.32 g, number of lateral roots/sapling 10.28, root length 22.01 mm, fresh weight of root system 15.77 g, dry weight of root system 5.11 g. Whereas intermediate cutting gave the significant highest result in the number of branches/sapling 2.00 and number of leaves/sapling 9.50. From the results, use of Seradix 3, significantly gave the highest value of studied characters; survival percentage 42.79%, length of sapling 14.43 cm, number of branches/sapling 2.33, number of leaves/sapling 10.11, fresh weight of shoot system 19.26 g, dry weight of shoot system 8.82 g, number of lateral roots/sapling 8.50, root length 19.33 cm, fresh weight of root system 13.80 g, dry weight of root system 3.68 g. So interaction of basal cuttings with auxin application significantly gave the best result for most of studied characters. | ||
| Keywords | ||
| Paulownia; Cuttings; Seradix; IBA | ||
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