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  Some properties of latex and raw rubbers from three-part-trees

Authors: Leong, W. | Yoon, P.K.

Date: 20080623 | 20080623 | | 1978 | | | | | | |

Subject: PRRIM

Type: Article

Identifier: vital1:36766

Description: This papaer records studies on the properties of latex and raw rubber from trunks of three-part-trees. The dry rubber and mineral contents in the firld latex as well as the KOH number and mechanical s… More

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  Penggalakan dahan

Authors: Leong, W. | Yoon, P.K. | Hafsah bt. Jaafar

Date: 20050506 | 20050506 | | 1985 | | | | | | |

Subject: PRRIM | Planting materials and recommendations

Type: Article

Identifier: vital1:32703

Description: Penggalakan dahan dibuat dengan tujuan untuk menggalakkan pengeluaran dahan yang cepat jika pokok tidak berdahan dengan sendiri. Seterusnya akan menambahkan ukuran luas daun dan dengan itu akan member… More

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  Branch induction.

Authors: Leong, W. | Yoon, P.K. | Hafsah bt. Jaafar

Date: 20030923 | 20050907 | | 1985 | | | | | | |

Subject: PRRIM | Plant physiology and anatomy

Type: Article

Identifier: vital1:25013

Description: Early growth in a tree is determined to a large extent by its leaf area. The objective of branch induction is to induce earlier branching if the trees do not branch naturally. This would lead to great… More

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  Characterisation of leaf area index and canopy light penetration of Hevea brasiliensis Muell. Arg. by hemispherical photography.

Authors: Leong, W. | Lemeur, R. | Yoon, P.K.

Date: 20030923 | 20050822 | | 1982 | | | | | | |

Subject: PRRIM | Plant physiology and anatomy

Type: Article

Identifier: vital1:24667

Description: Hemispherical photography was used to estimate leaf area index, (LAI) and canopy light penetration of rubber trees. Three methods to decode the hemispherical pictures were evaluated. They were the ele… More

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  Current status on effects of planting density on the performance of Hevea brasiliensis

Authors: Ng, A.P. | Leong, W. | Ismail bin Hj. Hashim | Pushparajah, E. | Yoon, P.K.

Date: 20030923 | 20030923 | | 1987 | | | | | | |

Subject: PRRIM

Type: Article

Identifier: vital1:26670

Description: -

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  Effect of interstock on growth of Hevea.

Authors: Leong, W. | Yoon, P.K.

Date: 20030923 | 20080624 | | 1978 | | | | | | |

Subject: PRRIM | Plant propagation and growth

Type: Article

Identifier: vital1:24557

Description: This paper presents results on the effects of interstocks of RRIM 600, PR 255, PB S6, dwarf clone and Hevea spruceana OH the growth of RRIM 600, PR 255 and PB 86. Heights were unaffected by RRIM 600, … More

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  Low and controlled pruning in rubber cultivation.

Authors: Leong, W. | Yoon, P.K.

Date: 20030923 | 20050907 | | 1985 | | | | | | |

Subject: PRRIM | Planting propagation and growth

Type: Article

Identifier: vital1:24831

Description: Generally, tall branching trees are the outcome of the current estate practice of regularly pruning off all emerging branches to 2.4 m to 3.1 m from the ground. A sound pruning practice would be one t… More

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  Modification of crown development of Hevea brasiliensis Muell. Arg. by cultural practices. I. Pruning

Authors: Leong, W. | Yoon, P.K.

Date: 20030923 | 20050822 | | 1982 | | | | | | |

Subject: PRRIM | Planting techniques and management

Type: Article

Identifier: vital1:24053

Description: This paper describes the effect of pruning on crown development of RRIM 600 and GT 1. The pruning treatments were estate pruning, controlled pruning, controlled pruning plus branch induction and estat… More

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  Modification of crown development of Hevea brasiliensis Muell. Arg. by cultural practices. II. Tree density.

Authors: Leong, W. | Yoon, P.K.

Date: 20030923 | 20050822 | | 1982 | | | | | | |

Subject: PRRIM | Planting materials and recommendations

Type: Article

Identifier: vital1:24266

Description: The effect of tree density on crown development was studied in two experiments. In Experiment D/l, two clones RRIM 600 and RRIM 701 were planted at six tree densities viz. 211, 297, 399, 557, 741 and … More

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  Modification of Mooney viscosity and other rubber properties by crown budding.

Authors: Leong, W. | Esah Yip | Subramaniam, A. | Loke, K.M. | Yoon, P.K.

Date: 20030923 | 20050907 | | 1986 | | | | | | |

Subject: PRRIM | Planting techniques and management

Type: Article

Identifier: vital1:24826

Description: The rubber properties of latex collected from three experiments selected from a series of experiments set up by RRIM, are summarised in Tables 1, 2 and 3. The properties of CV crepe differed from thos… More

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  Horticultural manipulations to modify branching habits in Hevea

Authors: Leong, W. | Yoon, P.K.

Date: 118-04-25 |118-04-25 |2001–1 |1974 | | | | | | |

Subject: Conference | Others | I.R.R.D.B. Symposium | Hevea

Language: EN

Type: Article

Identifier: In: I.R.R.D.B. Symposium (Part 1) held at Cochin, India, from 26-28 September 1974

Description: Various workers have found evidence that trees which branch earliest increase their girth fastest. Early growth in a tree is determined to a large extent by its leaf area. The objective of horticultur… More

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  Effect of low and controlled pruning on growth and yield of Hevea brasiliensis

Authors: Leong, W. | Yoon, P.K.

Date: 113-08-27 |113-08-27 |2001–1 |1983 | | | | | | |

Subject: eBook | Planting techniques and management

Language: EN

Type: eBook

Identifier: valet-20130827-153714

Description: This paper presents more results, including yields, from the 1973 to 1975 trials and early results from the new trial together with a recommendation of a simplified pruning procedure for use by the in… More

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