Results 181 to 190 of about 6,144 (221)
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American Journal of Botany, 1967
Three hybrids of A. repens, 2n = 42, × A. spicatum, 2n = 28, and two reciprocal hybrids were obtained from emasculated and unemasculated crosses, respectively. The 35‐chromosome hybrids tended to be morphologically intermediate between the parent species but resembled A. repens more closely than A. spicatum. A.
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Three hybrids of A. repens, 2n = 42, × A. spicatum, 2n = 28, and two reciprocal hybrids were obtained from emasculated and unemasculated crosses, respectively. The 35‐chromosome hybrids tended to be morphologically intermediate between the parent species but resembled A. repens more closely than A. spicatum. A.
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Phytotoxic Effect of Decaying Quackgrass (Agropyron repens) Residues
Weed Science, 1979We studied the effects of temperature (5, 10, 20, and 30 C) on the phytotoxic activity of decaying quackgrass [Agropyron repens (L.) Beauv.] leaves and rhizomes that were incubated in soils for 0, 1, 2, 4, and 6 weeks. Alfalfa (Medicago sativa L.) seeds were grown for 96 h in water, water extracts of control soils, and water extracts of soil with ...
T. V. Toai, D. L. Linscott
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THE BIOLOGY OF CANADIAN WEEDS. 24. AGROPYRON REPENS (L.) BEAUV.
Canadian Journal of Plant Science, 1977Agropyron repens (L.) Beauv., quack grass, is an introduced perennial grass found in all provinces of Canada and the Northwest Territories. In most agricultural areas it is a serious weed of cultivated crops; alternately it can be used as pasture or hay.
PATRICIA A. WERNER, R. RIOUX
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MORPHOLOGY, FERTILITY, AND CYTOLOGY OF AGROPYRON REPENS × AGROPYRON DESERTORUM F2'S
American Journal of Botany, 1962Dewey, Douglas R. (Crops Res. Lab., Agric. Expt. Sta., Logan, Utah.) Morphology, fertility, and cytology of Agropyron repens × Agropyron desertorum F2's. Amer. Jour. Bot. 49(1): 78–86. Illus. 1962.—An 82‐plant population derived from F1 hybrids of A. repens × A.
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Host Specificity of Five Leaf-Spotting Pathogens of Agropyron Repens
Canadian Journal of Plant Pathology, 1985(1985). Host Specificity of Five Leaf-Spotting Pathogens of Agropyron Repens. Canadian Journal of Plant Pathology: Vol. 7, No. 2, pp. 161-164.
M.G. Sampson, A.K. Watson
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Growth and Development of Quackgrass (Agropyron repens) Biotypes
Weed Science, 1981Greenhouse and field experiments (at Rosemount and Roseau, Minnesota) were conducted to characterize the growth and development of 10 quackgrass [Agropyron repens (L.) Beauv.] biotypes selected near Roseau, Minnesota. The biotypes were highly variable for all traits studied.
P. H. Westra, D. L. Wyse
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Control of Couch Grass (Agropyron repensP.B.) with Trichloroacetic Acid
Acta Agriculturae Scandinavica, 1957(1958). Control of Couch Grass (Agropyron repens P.B.) with Trichloroacetic Acid. Acta Agriculturae Scandinavica: Vol. 8, No. 3, pp. 265-278.
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Quackgrass (Agropyron Repens) Control with SC-0224 and Glyphosate
Weed Technology, 1988Field studies were conducted from 1982 to 1984 to evaluate the effectiveness of SC-0224 (trimethylsulfonium carboxymethylaminomethylphosphonate) and glyphosate [N-(phosphonomethyl)glycine] for quackgrass [Agropyron repens(L.) Beauv. # AGRRE] control. The herbicides were compared 1) in different rates and carrier volumes, 2) on several spring and fall ...
Paul T. Kivlin, Jerry D. Doll
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SOMATIC INSTABILITY IN DERIVATIVES FROM AGROELYMUS TURNERI RESEMBLING AGROPYRON REPENS
American Journal of Botany, 1961Nielsen, E. L., and J. Nath. (U. Wisconsin, Madison.) Somatic instability in derivatives from Agroelymus turneri resembling Agropyron repens. Amer. Jour. Bot. 48(4): 345–349. Illus. 1961.—Variations in somatic chromosome numbers of 4 to over 80 were observed in root tip cells of Agropyron repens‐like plants derived from Agroelymus turneri.
E. L. Nielsen, J. Nath
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Quackgrass (Agropyron repens) Control in Red Fescue Seed Production
Weed Science, 1986Sethoxydim {2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one}, RO-13-8895 {acetone-O-[d-2-[p-[α,α,α-trifluoro-p-tolyl-oxy]phenoxy] propionyl] oxime}, and KK-80 {4-[4-[4-(trifluoromethyl)phenoxy] phenoxyl]-2-pentenoic} were evaluated for potential use for controlling quackgrass [Agropyron repens(L.) Beauv., # AGRRE] in ...
Donald L. Wyse +3 more
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