Rooting ability of leafy-stem cuttings of hybrid Shorea (Dipterocarpaceae)

Kamiya K., . and Ichie T., . and Ngo K. M., . and Lum S. K. Y., . and Kenzo T., . Rooting ability of leafy-stem cuttings of hybrid Shorea (Dipterocarpaceae). pp. 324-331. ISSN 0128-1283

Although cutting is a useful method for vegetative propagation and tree breeding there is a difference in rooting ability between tree species and even between node positions within a species. A large number of F‚� hybrids of Shorea (Shorea curtisii S. leprosula) (Dipterocarpaceae) have recently been found in Singapore. Given that some of the hybrid traits appear to have higher physiological performances than those of their parent species understanding the rooting ability of the leafy-stem cuttings of F‚� hybrids may contribute to performance improvement in dipterocarp trees. In this study we compared the rooting abilities of cuttings taken from seedlings of F‚� hybrids and their parent species at different node positions. The cuttings of F‚� hybrids showed rooting ability with small internode differences and the rooting rate (32.2) was almost intermediate between those of S. curtisii (42.0) and S. leprosula (21.0). The rooting rates of hybrids and parents fell into the middle range of previously reported values for 21 closely related Shorea species. Overall the rooting ability of F‚� hybrids is comparable with that of their parent species and/or other Shorea species in the red meranti group. Thus F‚� hybrids could be mass propagated through cuttings.

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Abstract

Although cutting is a useful method for vegetative propagation and tree breeding there is a difference in rooting ability between tree species and even between node positions within a species. A large number of F‚� hybrids of Shorea (Shorea curtisii S. leprosula) (Dipterocarpaceae) have recently been found in Singapore. Given that some of the hybrid traits appear to have higher physiological performances than those of their parent species understanding the rooting ability of the leafy-stem cuttings of F‚� hybrids may contribute to performance improvement in dipterocarp trees. In this study we compared the rooting abilities of cuttings taken from seedlings of F‚� hybrids and their parent species at different node positions. The cuttings of F‚� hybrids showed rooting ability with small internode differences and the rooting rate (32.2) was almost intermediate between those of S. curtisii (42.0) and S. leprosula (21.0). The rooting rates of hybrids and parents fell into the middle range of previously reported values for 21 closely related Shorea species. Overall the rooting ability of F‚� hybrids is comparable with that of their parent species and/or other Shorea species in the red meranti group. Thus F‚� hybrids could be mass propagated through cuttings.

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Item Type:	Article
AGROVOC Term:	Shorea
AGROVOC Term:	Dipterocarpaceae
AGROVOC Term:	Plant breeding
AGROVOC Term:	Cuttings
AGROVOC Term:	Hybridization
AGROVOC Term:	Hybrids
AGROVOC Term:	Seedlings
AGROVOC Term:	Internodes
AGROVOC Term:	Rooting
AGROVOC Term:	Vegetative propagation
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8205

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