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Assessments of the infection of guineacorn ( Sorghum vulgare) by covered smut ( Sphacelotheca sorghi (Link) Clint.) in Northern Nigeria in 1957 and 1958
Author(s) -
HARRIS K. M.
Publication year - 1963
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1963.tb03703.x
Subject(s) - sorghum , biology , smut , sowing , crop , agronomy
SUMMARY A survey of the guineacorn ( Sorghum vulgare ) crop in Northern Nigeria in 1957 and 1958 indicated that, in both years, about 1% of all guineacorn spikelets were infected by covered smut ( Sphacelotheca sorghi ). This level of infection represents the annual loss of about £500,000 worth of grain or the unrewarded cultivation of at least 70,000 acres. There is evidence that the levels of infection are highest in those areas where temperatures at sowing time are relatively low.