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Parasite-host relationships in witchweed and corn (Zea mays L.)



Parasite-host relationships in witchweed and corn (Zea mays L.)



Abstracts, 1983 Meeting of the Weed Science Society of America: 63



Growth, water relations and gas exchange of parasitic witchweed and maize host plants were studied in a controlled-environment phytotron. In sand or sandy-loam soil at 32/23 deg C day/night temp., parasitization by witchweed significantly reduced plant ht., ear wt. and stem wt. in maize. Root:shoot ratios of witchweed-infested plants were 2-3 times greater than those of uninfested controls, indicating that parasitization by witchweed influenced photosynthate partitioning.

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Accession: 001106556

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