The polyisoprene content of some South African plants

Eagle, 1981, Guayule, Rubber Chem. Tech., 54, 662, 10.5254/1.3535825 Campos-Lopez, 1979, The rubber shrub, Chemtech., 50 Hall, 1919, A rubber plant survey of western North America, Univ. Calif. Pub. Botany, 7, 159 Willits, 1946, Determination of rubber in fleshy and woody tissue plants, Ass. Off. Agric. Chem., 29, 370 Spence, 1933, Determination of rubber in rubber-bearing plants, Ind. Eng. Chem. Anal. Ed., 5, 371, 10.1021/ac50086a005 Holmes, 1947, Rubber determination in young guayule. Studies on the Spencer-Caldwell method, Anal. Chem., 19, 313, 10.1021/ac60005a009 Meeks, 1953, Determining rubber hydrocarbon in rubber-bearing plants, Anal. Chem., 25, 1535, 10.1021/ac60082a033 Buehrer, 1945, Rubber content of native plants of the south-western desert, Ariz. Agr. Expt Stat. Tech. Bull. No. 108, 3 Buchanan, 1978, Multi-use oil and hydrocarbon-producing crops in adaptive systems for food, material and energy production Hall, 1980, Renewable resources (hydrocarbons), Outlook on Agriculture, 10, 246, 10.1177/003072708001000506 Golub, 1962, High-resolution nuclear magnetic resonance (NMR) spectra of various polyisoprenes, J. Am. Chem. Soc., 84, 4981, 10.1021/ja00883a073 Campos-Lopez, 1976, Microstructure of natural guayule rubber from 300 MHz nuclear magnetic resonance spectra, J. Polym. Sci. Polym. Chem. Ed., 14, 1561, 10.1002/pol.1976.170140625 Buchanan, 1978, Hydrocarbon and rubber-producing crops — parts (i) and (ii), Economic Botany, 32, 131, 10.1007/BF02866867 Hall, 1921, Rubber content of North-American plants, Carnegie Inst. Publication 313 Berkman, 1949, Milkweed—a war strategic material and a potential industrial crop for the sub-marginal lands in the United States, Econ. Bot., 3, 223, 10.1007/BF02859094 Hall, 1980, Threatened plants of southern Africa Watt, 1962 Sim, 1919, South African rubber, The South African Journal of Industries, 1126 Ames, 1944 Nwadinigwe, 1981, Comparative yield of cis-1,4-polyisoprene from the stem latex of four Landolphia species, Phytochem., 20, 2301, 10.1016/0031-9422(81)80138-0