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[9000894.] رقم البحث : 9000894 - |
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Factors Influencing Rootability of Dracaena Cuttings / |
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قطاع الدراسات الزراعية / General |
| تخصص البحث : General |
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Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015 |
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يوسف خيرى انور ( 01226313930 ) |
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Propagation, Dracaena marginata, Rooting, IAA, IBA, NAA, Cutting type. |
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Dracaena marginata, Lam. Cuttings (tip, middle and basal) were treated with certain growth regulators (IAA,IBA and NAA), each applied individually at 1000 ppm as a powder, beside control treatment to define the most effective combination of auxin and cutting types stimulating the rootability.
The highest percentage of rooted cuttings was resulted from IBA (73%) fol-lowed by IAA (46%) and NAA (32%). Tip-shoot cuttings showed the maximum rooting percentage (46%), while basal cuttings resulted in the minimum rooting percentage, however, middle cuttings appeared intermediate responses. Also, IBA produced higher number and shorter roots than IAA. Similarly, basal cut-tings produced the highest root number and formed the shortest roots.
Generally, tip-shoot cuttings treated with IBA 1000 ppm proved to be more effective treatment enhancing the rooting percentage (88%) and improving root characteristics. |
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