EFFECT OF WOUNDING, AUXINS AND CINNAMON EXTRACT ON THE ROOTING AND VEGETATIVE GROWTH CHARACTERISTICS OF BOTTLE BRUSH PLANT (MELALEUCA VIMINALIS L.) CUTTINGS

Document Type : Original Research Article

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Department of Horticulture and Landscaping, College of Agriculture and Forestry, University of Mosul, Mosul, Iraq

Abstract

This study was conducted in the green house of the Department of Horticulture and Landscape Design, College of Agriculture and Forestry, Mosul University, Iraq to study the effect of wounding process and the rooting solutions of IBA and NAA in addition to cinnamon extract (cin.); C1 (0), C2 (750 IBA + 750 NAA mg L-1), C3 (1500 IBA + 1500 NAA mg L-1), C4 (750 IBA + 750 NAA mg L-1 + 2 mg 100 ml-1 cin.), C5 (750 IBA + 750 NAA mg L-1 + 4 mg 100 ml-1 cin.), C6 (2 mg 100 ml-1 cin.) and C7 (4 mg 100 ml-1 cin.). In quick-dip method, the median cutting was used for this study. The experiment was carried out using the randomized complete block design (RCBD) with 3 replicates and 8 cuttings per repeater (3 × 2 × 7). Data were analyzed using SAS. The results showed that wounding per se had no effect on rooting rate, length of vegetative growth and the number of leaves. Whereas, solution C4 was the best among the other rooting solutions when coupled with wounding, which increased both the rooting rate as well as the length of vegetative growth. The control treatment gave the highest value as has also been observed that non-treatment of auxin induced in the leaves number and caused a significant increase in the studied properties compared with the treatment of unwounded cuttings.

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