Quackgrass competition effect on potato yield

The effect of different periods of quackgrass (Agropyron repens L. Beauv.) competition after crop emergence was studied for potato (Solanum tuberosum L. ’Russet Burbank’). Delaying quackgrass removal for 2 wk after crop emergence reduced small-sized tuber yield, marketable tuber yield and total yiel...

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Veröffentlicht in:	Canadian journal of plant science 1986, Vol.66 (1), p.185-187
1. Verfasser:	Ivany, J.A
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences crop yield crop-weed competition Elymus repens subsp. repens Fundamental and applied biological sciences. Psychology Generalities, botany, ecology, damages, economic importance Parasitic plants. Weeds Phytopathology. Animal pests. Plant and forest protection Solanum tuberosum Weeds
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Zusammenfassung:	The effect of different periods of quackgrass (Agropyron repens L. Beauv.) competition after crop emergence was studied for potato (Solanum tuberosum L. ’Russet Burbank’). Delaying quackgrass removal for 2 wk after crop emergence reduced small-sized tuber yield, marketable tuber yield and total yield by 6%, 27% and 21%, respectively, averaged over 4 yr. Successively longer delays in quackgrass removal showed progressively greater reductions in yield.Key words: Quackgrass, potato, competition
ISSN:	0008-4220 1918-1833
DOI:	10.4141/cjps86-027