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Authors:
Southorn, W.A.
Date: 20050826 |
20070717 | |
1969 | | | | | | |
Subject: PRRIM
Type: Article
Identifier: vital1:36620
Description: Tapping and collection now account for the major cost of natural rubber production. Modern methods of exploitation with higher yielding trees have resulted in longer flow times so that an increasingly… More
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Authors:
Southorn, W.A.
Date: 20050705 |
20050705 | |
1961 | | | | | | |
Subject: PRRIM
Type: Article
Identifier: vital1:34454
Description: -
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Authors:
Cockbain, E.G. | Southorn, W.A.
Date: 20050113 |
20050113 | |
1962 | | | | | | |
Subject: PRRIM
Type: Article
Identifier: vital1:28938
Description: -
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Authors:
Southorn, W.A.
Date: 20041203 |
20041203 | |
1960 | | | | | | |
Subject: PRRIM
Type: Article
Identifier: vital1:29807
Description: A photomicrographic study has been made of fractions separated from chilled Hevea latex by high speed centrifuging. Several new features have been photographed including a characteristic internal stru… More
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Date: 20041202 |
20050202 | |
1969 | | | | | | |
Subject: PRRIM | Plant physiology growth
Type: Article
Identifier: vital1:30005
Description: Electrical potentials can be detected in Hevea brasiliensis as a response lo wounding. The response can be detected only very near the wound and there is no mechanism for distant transmission as obser… More
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Authors:
Southorn, W.A.
Date: 20041202 |
20050131 | |
1969 | | | | | | |
Subject: PRRIM | Latex physiology
Type: Article
Identifier: vital1:30169
Description: Hevea brasiliensis latex is a cytoplasm contained in vessels with elastic and permeable walls. The latex is at high pressures in the vessels before tapping. Latex flows because of contraction of the v… More
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Authors:
Southorn, W.A.
Date: 20030923 |
20050207 | |
1964 | | | | | | |
Type: Article
Identifier: vital1:23796
Description: Electron micrographs of sections taken through the thickness of partially dried sheet rubber show differences in micro-structure in different regions of the sheet and give direct evidence of a barrier… More
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Authors:
Southorn, W.A.
Date: 20030923 |
20050111 | |
1968 | | | | | | |
Subject: PRRIM | Latex physiology
Type: Article
Identifier: vital1:23822
Description: Microscopic examination of the tapping region shows that stoppage of latex flow is not caused by physical plugging of the vessel by bacteria, Frey- Wyssling particles or lutoids. After flow has stoppe… More
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Authors:
Southorn, W.A. | Edwin, E.E.
Date: 20030923 |
20050111 | |
1968 | | | | | | |
Subject: PRRIM | Latex physiology
Type: Article
Identifier: vital1:24495
Description: The lutoids of Hevea latex are shown to contain a system capable of destabilising suspended rubber particles. This destabilising action is moderated by the ambient serum (C-serum) at the normal pH of … More
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Authors:
Southorn, W.A. | Esah Yip
Date: 20030923 |
20050111 | |
1968 | | | | | | |
Subject: PRRIM | Latex physiology
Type: Article
Identifier: vital1:24605
Description: Fresh Hevea latex is a dual colloid system. As a first approximation it consists of negatively charged particles of various types suspended in a serum containing anionic proteins. Included in the nega… More
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Authors:
Southorn, W.A.
Date: 20030923 |
20050111 | |
1968 | | | | | | |
Subject: PRRIM | Latex physiology
Type: Article
Identifier: vital1:24285
Description: A simple viscometer of the rolling-ball type has been constructed for viscosity determinations in the range 1-100 cp using less than 0.5 ml of material. This instrument is extremely sensitive to the p… More
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Authors:
Southorn, W.A. | Esah Yip
Date: 20030923 |
20050113 | |
1968 | | | | | | |
Subject: PRRIM | Latex physiology
Type: Article
Identifier: vital1:24020
Description: The study concerns the flow of fresh latex through glass capillaries of 20 to 200 u bore and at pressure gradients of up to 2 atm/cm. The apparent viscosity determined from such experiments is constan… More
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Authors:
Esah Yip | Southorn, W.A.
Date: 20030923 |
20050113 | |
1968 | | | | | | |
Subject: PRRIM | Latex physiology
Type: Article
Identifier: vital1:23776
Description: Flow of fresh Hevea latex at high pressures through glass capillaries of internal diameter 22 to 80 u was investigated. Flow usually ceased when fresh latex was forced through the capillaries at press… More
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Date: 20030923 |
20050822 | |
1974 | | | | | | |
Subject: PRRIM | Latex physiology
Type: Article
Identifier: vital1:23934
Description: Latices from trees stimulated with Ethrel (containing 2-ckloroethyl phosphonic acid), acetylene and 2,4,5- T were studied over a period of a year. Rheological measurements showed a change in the surfa… More
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Authors:
Southorn, W.A. | Gomez, J.B.
Date: 20030923 |
20050218 | |
1970 | | | | | | |
Subject: PRRIM | Latex physiology
Type: Article
Identifier: vital1:24445
Description: The length of the tapping cut has a strong influence on the pattern of latex flow. Plugging is intense, turgor pressures remain high and yields per severed latex vessel are more for very short cuts. T… More
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