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Latex physiology | Southorn, W.A.

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Add  Physiology of Hevea (latex flow)
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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Add  Latex flow studies I. Electron microscopy of Hevea brasiliensis in the region of the tapping cut.
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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Add  Latex flow studies II. Influence of lutoids on the stability and flow of Hevea latex.
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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Add  Latex flow studies III. Electrostatic considerations in the colloidal stability of fresh Hevea latex.
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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Add  Latex flow studies IV. Thixotropy due to lutoids in fresh latex demonstrated by a microviscometer of new design.
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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Add  Latex flow studies V. Rheology of fresh Hevea latex flow in capillaries.
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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Add  Latex flow studies VI. Effects of high pressure gradients on flow of fresh Hevea latex in narrow bore capillaries.
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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Add  Latex flow studies. IX. Effects of application of yield stimulants on rheology of Hevea latex and on concentrations of charged components in its sera.
Authors: Esah Yip | Southorn, W.A. | Gomez, J.B.
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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Add  Latex flow studies. VII. Influence of length of tapping cut on latex flow pattern.
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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