Allelopathic Potential of Winter Wheat Varieties for Weed Suppression
نویسندگان
چکیده
Summer weeds are an expensive economic and environmental problem during the fallow period following harvest of a wheat crop. Anecdotal evidence suggests that different varieties impact need for weed control in subsequent differently, with reasons ranging from residue amount quality to allelopathic potential such residue. Thus, our objectives were compare effects winter on crop germination suppression. We collected left after 25 grown randomized complete block design two Kansas locations (Hays Great Bend) 2022. The combined (replications within location), dried, ground, used create extracts 5% concentration later growth chamber study. total 50 seeds species Palmer amaranth (Amaranthus palmeri) giant foxtail (Setaria faberi), grain sorghum (Sorghum bicolor), added petri dishes combination 5 mL each extract four replicates. Petri sealed Parafilm placed dark set 84/75°F day/night temperatures. Seed was counted days. There significant location by variety interactions both species, greater resulting derived Bend (6–100% control) than Hays (-10 69%). difference among also large, depending location, ranged as little 26% much 90% (these differences reflected contrasts between minimum versus those maximum control). All significantly reduced seed foxtail, but differed their suppression potential. could be additional targets breeding programs pressure. Meanwhile, minimally impacted
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ژورنال
عنوان ژورنال: Kansas Agricultural Experiment Station Research Reports
سال: 2023
ISSN: ['2378-5977']
DOI: https://doi.org/10.4148/2378-5977.8477