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Influence of Corn Smut and Hail Damage on the Yield of Certain First‐Generation Hybrids between Synthetic Varieties 1
Author(s) -
Garber R. J.,
Hoover M. M.
Publication year - 1935
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1935.00021962002700010005x
Subject(s) - yield (engineering) , hybrid , smut , citation , agronomy , horticulture , library science , biology , computer science , physics , thermodynamics
INFLUENCE OF CORN SMUT AND HAIL DAMAGE ON THE YIELD OF CERTAIN FIRST-GENERATION HYBRIDS BETWEEN SYNTHETIC VARIETIES R. J. GARBER AND M. M. HoovER I N an earlier paper (2)' some evidence was presented which indicated that yield in corn may not be reduced because of smut (Ustilago zed) to the extent that is commonly supposed. In this earlier work both with selfed lines and with first-generation crosses between them, the only significant decrease in yield was that attributable to the greater incidence of barrenness among smutted plants. On the other hand, somewhat similar studies conducted in Minnesota (3, 4) and in Ohio (5), with few exceptions, showed marked decreases in yield caused by smut. The more vigorous selfed lines and first-generation crosses as reported by Kyle (6) of the U. S. Dept. of Agriculture showed the greater number of smut boils. The purpose of this paper is to present additional data relative to the influence of smut on yield, and incidentally, to present some data which show the extent to which yields may be lowered because of hail damage.