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VARIASI KONSENTRASI IBA DAN BAP TERHADAP PERTUMBUHAN RIMPANG LEMPUYANG GAJAH (Zingiber zerumbet (L.) Roscoe ex Sm.)

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Bitter ginger (Zingiber zerumbet (L.) Roscoe ex Sm.), commonly known as lempuyang gajah, is a medicinal plant from the Zingiberaceae family that has long been utilized by the community as raw material for traditional medicine and herbal preparations. However, its vegetative propagation through rhizomes is still limited, thus requiring efforts to improve its growth through the application of plant growth regulators (PGRs). Auxin type IBA (Indole Butyric Acid) plays a role in stimulating root and shoot formation, while cytokinin type BAP (Benzyl Amino Purine) functions to trigger cell division and shoot initiation. This research aimed to determine the effect of different concentrations of IBA and BAP on the growth of Zingiber zerumbet rhizomes. The study was conducted from February to October at the Experimental Garden and the Laboratory of Physiology and Development, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya. The experiment used a Completely Randomized Design (CRD) with five treatments and five replications. Observed variables included the percentage of sprouting and rooting rhizomes, number and height of shoots, number and height of plantlets, number of leaves, root number, and root length. Data were analyzed using ANOVA, and significant results were further tested with Duncan’s Multiple Range Test (DMRT) at a 5% significance level. The results showed that all treatments produced 100% sprouting and rooting of rhizomes. The application of BAP plant growth regulator and various IBA concentrations had a significant effect on the number of shoots, number of tillers, seedling height, number of leaves, number of roots, and root length, but had no significant effect on shoot height. Therefore, treatment P2 with a concentration of 50 ppm IBA and 100 ppm BAP was determined as the optimal concentration to enhance the growth of bitter ginger rhizomes, as it resulted in better rhizome growth performance. Keywords : Bitter ginger, IBA, BAP, Growth

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Detail Information

Series Title

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Call Number

T1919252026

Publisher

Indralaya : Prodi Ilmu Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Sriwijaya., 2026

Collation

xv, 47 hlm.; ilus.; 29 cm

Language

Indonesia

ISBN/ISSN

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Classification

581.307

Content Type

Text

Media Type

unmediated

Carrier Type

-

Edition

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Subject(s)

Prodi Ilmu Biologi
Lempuyang Gajah (Zingiber zerumbet)

Specific Detail Info

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Statement of Responsibility

KA

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