Effect of Chitosan and Slowed release Fertilizer on Some Characteristics of vegetative and Root Growth of Two Species Dracaena sp | ||
| Kirkuk University Journal For Agricultural Sciences | ||
| Article 5, Volume 12, Issue 1, Winter 2021, Page 37-46 PDF (557 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.58928/ku21.12105 | ||
| Authors | ||
Laila Riyad Nashat  1; Ziyad Saleh2; Dalshad Rasool Azeez3 | ||
| 1Department of Horticulture and Landscape / College of Agriculture / Kirkuk University | ||
| 2Department of Horticulture and Landscape / Faculty of Agriculture / Tikrit University | ||
| 3Department of soil sciences and water resources// College of Agriculture / Kirkuk University. | ||
| Abstract | ||
| A study was conducted during the agricultural season 2019-2020, in a plastic house in which the temperature and humidity are controlled throughout the study period. The experiment included three factors: the first factor is two species of Dracaena, Dracaena marginata, and Dracaena massengeana, second factor, spraying with chitosan in two concentrations (0, 500) mg.L-1, third factor is the application of slow-release fertilizer at three levels (0, 5, 10) gm.pot-1. The experiment was designed by the complete randomized block design (RCBD) with split plot, where the species were placed on the main plots. The results showed a clear response of the two types of dracaena after six months. chitosan spraying gave a significant percentage increase in plant height, and number of leaves (63.37, 76.04) %, respectively. Application of slow-release fertilizers gave an increase of plant height, and number of leaves (60.79, 74.41)% respectively. Highest decorative value was recorded for interaction between the two types, D. marginata and D. massengeana and spraying with chitosan at a concentration of 500 mg.L-1 and the application of slow-release fertilizers 10 g.pot-1 gave value 5 for both treatments. While treatment interaction between the type D.marginata and spray with chitosan at a concentration of 500 mg.L-1 and the application of slow-release fertilizers at a concentration of 10 g.pot-1 significant increase in the root dry weight gave a dry weight of 16.02 g. | ||
| Keywords | ||
| Chitosan; Slow-release fertilizer; Dracaena | ||
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