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Effect of Fertilizers on the Resistance of Certain Winter and Spring Wheat Varieties to the Wheat Stem Sawfly 1
Author(s) -
Luginbill P.,
McNeal F. H.
Publication year - 1954
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/agronj1954.00021962004600120010x
Subject(s) - entomology , agricultural experiment station , agriculture , biology , agronomy , botany , ecology
ESCUE spring wheat is the only variety of Tfiticum vu/R gare Vill. being grown extensively in Montana and to some extent in North Dakota that offers resistance to the wheat stem sawfly, Cephas cinctuJ Nort. Its resistance is associated with solidness of stem, as has been observed by Kemp (2) and Eckroth and McNeal ( I ) . Platt ( 3 ) has shown that solidness of stem is affected 'by variations in light, temperature, moisture and spacing of plants. It is possible that fertilizer treatments might also affect solidness of stem and hence resistance to the sawfly. Taylor, Apple, and Berger (4) state that corn borer survival was higher in vigorous plants than in smaller, nutrient-deficient plants of the same age. The increasing use of commercial fertilizers in areas infested with the wheat stern sawfly near Choteau, Mont., made it desirable to determine the effect of fertilizcr treatments on sawfly resistance. This paper reports the results of such a study for certain varieties of spring and winter wheat.