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101.
Gibbons A 《Science (New York, N.Y.)》1994,265(5174):864
102.
103.
Tick-borne fever in dairy herd 总被引：2，自引：0，他引：2
104.
Summary An expanded scheme of groundnut variety classification is presented which is revised in the light of recently collected West African material and is designed in concordance with the most recent taxonomic treatment of the species Arachis hypogaea L. This species consists of two subspecies ssp. hypogaea and ssp. fastigiata
Waldron. Each subspecies contains two botanical varieties. Those of ssp. hypogaea are var. hypogaea and var. hirsuta
Kohler and those of ssp. fastigiata
Waldron are var. fastigiata and var. vulgaris
Harz. Each infraspecific taxon contains a morphologically distinct group of cultivated varieties.Grain Legume Research Laboratory, Agricultural Research Council of Malawi, POB215, Lilongwe, Malawi.Department of Agricultural Botany, University of Reading, Reading, England. 相似文献
105.
Pathogenicity of the border disease agent for the bovine foetus 总被引：1，自引：0，他引：1
D F Gibbons C E Winkler I G Shaw S Terlecki C Richardson J T Done 《The British veterinary journal》1974,130(4):357-360
106.
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The neutron buildup processes of heavy-element synthesis in stars have left us a number of tantalizing nuclear clues to the early history of solarsystem material. Considerable illumination of our past history has been achieved through studying the correlations between abundance and neutroncapture cross section. Measurement of these cross sections required the development of new techniques for measuring time of flight of pulsed neutron beams. A clear conclusion is that many of our heavy elements were produced inside stars, which can be thought of as giant fast reactors. Extensions of these capture studies have given a clearer picture of additional. violent processes which produced some heavy elements, particularly thorium and uranium. In addition, the correlations have been used for obtaining an independent measure of the time that has elapsed since the solar-system material was synthesized. Finally, data on capture cross section relative to abundance will enable us to determine rather accurately the solar-system abundances of gaseous, volatile, and highly segregated elements. 相似文献
108.
Gibbons A 《Science (New York, N.Y.)》2001,293(5539):2368-2369
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