AN ANALYSIS OF THE GROWTH AND DEGENERATION OF PHYSIOLOGICAL RACES OF WHEAT STEM RUST IN 1964

Abstract

According to the analysis of the trend of growth and decline from 1962 to 1964, the dominance of the physiological racial group of wheat stem rust No. 21 declined year after year while that of the physiological racial group No. 34 rose year after year; therefore, with regard to the work of breeding stem rust resistant wheat varieties, both physiological racial groups should be given attention and the rust resistant varieties kept in reserve must be those varieties that are resistant to both physiological racial groups so that the danger of a sudden loss of rust resistance may be prevented.

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Document Details

Document Type
Technical Report
Publication Date
Mar 07, 1967
Accession Number
AD0675711

Entities

People

  • Hsueh Li-hsin
  • Huang Chen-t'ao
  • Jen Yu-chen
  • Wei Shao-hsing
  • Wu Yu-san

Organizations

  • United States Army Biological Warfare Laboratories

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accounting
  • Agriculture
  • Availability
  • Breeding
  • Commerce
  • Ethnic Groups
  • Fungi
  • Identification
  • Literature
  • Maryland
  • Mongolia
  • Municipalities
  • Republic
  • Resistance
  • Translations

Readers

  • Military/Explosive Ordnance Disposal (EOD) Technology
  • Oncology (Cancer Research).
  • Organizational Psychology.