Henri L. Le Roy

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Henry Louis Le Roy (born June 5, 1926 in Bern ; citizen of Delsberg , Canton of Jura; † May 14, 2015 in Zurich ) was a Swiss biometrician and population geneticist at the Swiss Federal Institute of Technology in Zurich .

Live and act

Henry Le Roy was born in Bern in 1926 and was a citizen of the city of Delémont in the canton of Jura. He spent his youth in Bern, learned the trade of a farmer between 1941 and 1946 and also attended the year school in Zollikofen-Rütti . From 1947 to 1951 he studied at the Agriculture Department of the Swiss Federal Institute of Technology (ETH) in Zurich, where he graduated as a Dipl.-Ing. agr. from. He then worked as an assistant at the Institute for Animal Breeding at the ETH (with Prof. Hans Lörtscher ), interrupted by research stays on modern population genetics and biometrics in the USA (at Iowa State College) and Great Britain. In 1955, Le Roy received his doctorate with distinction from the ETH as Dr. sc. techn. agr. Already two years later he completed his habilitation here, became associate professor on April 1, 1959, in 1961 head of the laboratory for biometrics and population genetics and in 1967 full professor for the subjects mentioned. In 1993 he retired.

Honorary positions

  • 1975–1978 Vice President, then President of the International Biometric Society (IBS)
  • President of the Swiss Association of Agronomists and Food Technologists (SVIAL)

Appreciation

Henri Le Roy made biometrics and population genetics an integral part of the education of agricultural students. To this end, he wrote several easily understandable standard works, contributed to the scientific dissemination of these then new subject areas and prepared the introduction of mathematical programs using electronic data processing. The Swiss Association of Engineer-Agronomists and Food Technologists (SVIAL) made its long-term president an honorary member.

Main work (selection)

  • The selection index, a tool for artificial selection. Diss. Of the technical sciences at the Federal. Technical University of Zurich, 1955, 151 pp.
  • The parentage rating. Hab.-Schr. No. 29 ETH Zurich. In: Zeitschr. for animal breeding and breeding biology , Volume 71, H. 4, 1958, pp. 328-378.
  • Statistical Methods of Population Genetics - A Floor Plan for Geneticists, Agronomists, and Biomathematists. Basel 1960, 397 pp.
  • Basics and possible applications of the method of path coefficients. Berlin 1959, pp. 30-43.
  • Various publications in the field of animal breeding. 195 pp.
  • Population genetic elements of breeding planning. Zurich 1965, 119 pp.
  • Elements of animal breeding: genetics, mathematics, population genetics. Munich 1966, 364 pp.
  • ABC of population genetics. Hanover 1967, 127 pp.
  • Principles of Linear Algebra - an application-oriented introduction for scientists and non-mathematicians. Bern / Stuttgart 1980, 328 pp.

literature

  • Theophil Gerber: Personalities from agriculture and forestry, horticulture and veterinary medicine - Biographisches Lexikon Landwirtschaft. 4th ext. Ed., NORA Berlin 2014, p. 444.
  • Lino Guzzella, Sarah Springman: ETH Zurich says goodbye to Prof. Dr. Henri Louis Le Roy. 10 June 2015.
  • Roy, Henri Le (1926–) --- DB2954. In: Archive for Agricultural History, Bern.
  • Swiss Association of Engineer-Agronomists and Food Technologists (SVIAL), Bulletin August 1984, pp. 9-10.
  • Archive for Agricultural History Bern, Personal Dossier No. 206.

Web links

Individual evidence

  1. ^ Entry in the archive for agricultural history in Bern
personal data
SURNAME Le Roy, Henri L.
ALTERNATIVE NAMES Le Roy, Henry Louis
BRIEF DESCRIPTION Swiss agricultural scientist, biometrician and population geneticist
DATE OF BIRTH June 5, 1926
PLACE OF BIRTH Bern
DATE OF DEATH May 14, 2015
Place of death Zurich , Switzerland