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Effects of rooting hormones on the juvenile stem cuttings of Annona muricata Linn. (Annonaceae)

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Dada C. A., Kayode J., Arowosegbe S.
World News of Natural Sciences
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2019
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vol. 23
336-342
EN
Annona muricata is a recognized medicinal plant species. Despite its usefulness, adequate attention has not been given to its propagation and cultivation. Therefore, this study investigates the effect of some rooting hormones on juvenile stem cuttings of Annona muricata. Uniform, healthy, single node leafy stem cuttings were obtained from eighty (80) uniformly growing seedlings. The cuttings were treated with 1mg/ml of Indole Acetic Acid (IAA), 1 mg/ml of Indole Butyric Acid (IBA), coconut water and distilled water as control, using the quick dip method. The percentage survival of the cuttings, percentage of die back, number of new roots formed per cutting, length of new roots formed, and number of new shoot were assessed after 60 days. Results obtained revealed that the species responded differently to the four treatments. Coconut water had the highest survivor percentage (100%) and IBA had the lowest (25%). Coconut water had the highest mean number of roots (5.25) and IBA had the least (1.75), but there was no significant difference between the values obtained from IBA and distilled water. IAA had the highest mean value (1.80) for new shoots, while IBA had the least value and there was no significant difference between the values obtained from coconut water and distilled water. Significant differences, however, did abound in the root length. Coconut water had the highest mean root length value (4.70 cm), followed by distilled water (1.95 cm), while IBA had 1.55 cm and IAA had the least value (0.80 cm). Thus the use of coconut water might enhance the development of stem cuttings of Annona muricata.
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