Performance of clone PB260 Rubber tree in a large plantation group in Peninsular Malaysia

Chan Weng Hoong, . Performance of clone PB260 Rubber tree in a large plantation group in Peninsular Malaysia. pp. 403-418. ISSN 0126-575X

PB260 was the most extensively planted clone in a large plantation group in Peninsular Malaysia. This clone occupied 8 620 ha or 27. 9 per cent of the total rubber area in 1996. The clone generally sports dense foliage in most districts due to its above average resistance against the major leaf diseases. The clone has also performed well in terms of growth and latex yield when compared with both the traditional and newer clones. Its straight trunk with light self shedding branches yields twice as much timber as clone RRIM600. Growth of the clone during immaturity was better (exceeding 50 cm in 60 months) in Selangor Perak and Pahang than in the other states. Wintering depression was also generally less severe and tree dryness reported to be lower in these states. All these parameters probably account for the higher yields obtained on panels BO1 and BO2 in the three states. The clone also yielded well on when tapped high level virgin bark. Yields obtained on panel B11 was however low due mainly to poor condition of the bark. The lifespan of trees may be reduced to 26 years from the normal 30 years if tapping is confined to virgin panels only. On the basis of its attractive attributes and comparable performance against newer clones and under the current scenario of scarcity of skilled tappers and high demand for heveawood PB260 may still be considered a good choice of clone for replanting. Trees could be exploited on a reduced lifespan of 26 years whereby virgin panels are tapped for their high yields and trees subsequently felled for their valuable timber.

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Abstract

PB260 was the most extensively planted clone in a large plantation group in Peninsular Malaysia. This clone occupied 8 620 ha or 27. 9 per cent of the total rubber area in 1996. The clone generally sports dense foliage in most districts due to its above average resistance against the major leaf diseases. The clone has also performed well in terms of growth and latex yield when compared with both the traditional and newer clones. Its straight trunk with light self shedding branches yields twice as much timber as clone RRIM600. Growth of the clone during immaturity was better (exceeding 50 cm in 60 months) in Selangor Perak and Pahang than in the other states. Wintering depression was also generally less severe and tree dryness reported to be lower in these states. All these parameters probably account for the higher yields obtained on panels BO1 and BO2 in the three states. The clone also yielded well on when tapped high level virgin bark. Yields obtained on panel B11 was however low due mainly to poor condition of the bark. The lifespan of trees may be reduced to 26 years from the normal 30 years if tapping is confined to virgin panels only. On the basis of its attractive attributes and comparable performance against newer clones and under the current scenario of scarcity of skilled tappers and high demand for heveawood PB260 may still be considered a good choice of clone for replanting. Trees could be exploited on a reduced lifespan of 26 years whereby virgin panels are tapped for their high yields and trees subsequently felled for their valuable timber.

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Item Type:	Article
Additional Information:	Summary (En)
AGROVOC Term:	HEVEA BRASILIENSIS
AGROVOC Term:	CLONES
AGROVOC Term:	CROP PERFORMANCE
AGROVOC Term:	PLANTATIONS
AGROVOC Term:	GROWTH
AGROVOC Term:	YIELDS
AGROVOC Term:	PENINSULAR MALAYSIA HEVEA BRASILIENSIS
AGROVOC Term:	CLONES
AGROVOC Term:	DESEMPENO DE CULTIVOS
AGROVOC Term:	PLANTACIONES
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:52
URI:	http://webagris.upm.edu.my/id/eprint/17506

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