Accession Number : AD0687513

Title :   PROTEIN CONTENT OF WESTERN CANADIAN HARD RED SPRING WHEAT IN RELATION TO SOME ENVIRONMENTAL FACTORS,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF BIOSCIENCES

Personal Author(s) : Hopkins,J. W.

Report Date : 10 JAN 1968

Pagination or Media Count : 21

Abstract : Area sample survey data for 2,274 wheat belt district-years were related to point meteorological records of daily rainfall and air temperature and to specific district and year characteristics. Although these variables specified the actual crop environments only incompletely and imprecisely, they nevertheless yielded provisional quantitative statistical associations of below average midsummer and previous season rainfall and above average July temperatures with above average protein and of exceptionally heavy spring rainfall or undue heat and drought during terminal ripening with below average protein. They were also suggestive of a slight tendency, over the 25 years, for the crop to have become more sensitive to spring and less sensitive to later weather conditions. After allowing for variations thus associated with the specified weather factors, after 1942 no appreciable decline in annual average wheat protein levels was indicated. The analysis also suggested that interzones between main brown (prairie grassland) and black (parkland), and between grey (northern forest) and black soil types might have been of above type average protein potential. (Author)

Descriptors :   (*WHEAT, *PROTEINS), (*CLIMATE, AGRICULTURE), RAINFALL, PERIODIC VARIATIONS, ATMOSPHERIC TEMPERATURE, STATISTICAL DATA, VOLUME, HEAT, SENSITIVITY, CLASSIFICATION, SAMPLING, DISTRIBUTION, MAPS, GRAPHICS, REGRESSION ANALYSIS, CANADA

Subject Categories : Agricultural Chemistry
      Agronomy, Horticulture and Aquiculture

Distribution Statement : APPROVED FOR PUBLIC RELEASE