Propagation of an endangered gymnosperm tree species (Podocarpus neriifolius d. Don.) by stem cuttings in non-mist propagator

Mahfuzur Rahman Mohammad, . and Islam Mohammed Ashraful, . and Shumi Wahhida, . and Hossain Mohammed Aktar, . and Azad Mohammed Abul Kalam, . and Nor Aini Abdul Shukor, . Propagation of an endangered gymnosperm tree species (Podocarpus neriifolius d. Don.) by stem cuttings in non-mist propagator. pp. 237-250. ISSN 1511-3701

Podocarpus neriifolius D. Don. (Podocarpaceae) an endangered and the only indigenous gymnosperm tree species grows naturally in Bangladesh. Seed-based propagation of this species is challenging owing to its inadequate number of mother trees and irregular seedsetting attribute from among a few trees scattered throughout the country. This study weighs the significance and multiplication potentials of this species through rejuvenated stem cuttings with or without the application of Indole Butyric Acid (IBA). The rooting ability of the cuttings was evaluated by treating the cutting bases with 0 0.002 0.4 and 0.8 (w/v) IBA solution prior to place them in a low cost non-mist propagation system. Steckling performances of the rooted cuttings were evaluated in the nursery conditions. The study found that the species was amenable to rooting with IBA treatments. The highest rooting percentage (61.3 3.3 ; n 90) and number of roots per cutting (9.8 1.32; n 90 ) were obtained in the 0.8 IBA treatment; however the longest root and shoot as well as the highest initial growth performances were obtained in 0.4 IBA treatment. Therefore rejuvenated stem cuttings treated with 0.4 or 0.8 IBA solution in a non-mist propagator could potentially be an effective method for the clonal propagation of these tree species.

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Abstract

Podocarpus neriifolius D. Don. (Podocarpaceae) an endangered and the only indigenous gymnosperm tree species grows naturally in Bangladesh. Seed-based propagation of this species is challenging owing to its inadequate number of mother trees and irregular seedsetting attribute from among a few trees scattered throughout the country. This study weighs the significance and multiplication potentials of this species through rejuvenated stem cuttings with or without the application of Indole Butyric Acid (IBA). The rooting ability of the cuttings was evaluated by treating the cutting bases with 0 0.002 0.4 and 0.8 (w/v) IBA solution prior to place them in a low cost non-mist propagation system. Steckling performances of the rooted cuttings were evaluated in the nursery conditions. The study found that the species was amenable to rooting with IBA treatments. The highest rooting percentage (61.3 3.3 ; n 90) and number of roots per cutting (9.8 1.32; n 90 ) were obtained in the 0.8 IBA treatment; however the longest root and shoot as well as the highest initial growth performances were obtained in 0.4 IBA treatment. Therefore rejuvenated stem cuttings treated with 0.4 or 0.8 IBA solution in a non-mist propagator could potentially be an effective method for the clonal propagation of these tree species.

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Item Type:	Article
AGROVOC Term:	Gymnosperms
AGROVOC Term:	Podocarpus
AGROVOC Term:	Podocarpaceae
AGROVOC Term:	Endangered species
AGROVOC Term:	Plant propagation
AGROVOC Term:	Propagation by cuttings
AGROVOC Term:	Stems
AGROVOC Term:	Mists (application methods)
AGROVOC Term:	Indolebutyric acid
AGROVOC Term:	Rooting
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8130

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