Ecological effects of barnyardgrass on soybeans in a greenhouse

Maun, M.A. (1977) Ecological effects of barnyardgrass on soybeans in a greenhouse. Weed Science, 25 (2). pp. 128-131.

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Abstract

Competition between soybeans cv. Vansoy and Echinochloa crus-galli was studied in the glasshouse. The competition was initiated or terminated when soybeans were 2, 3, 4, 5, 6, 7, 8, 9 and 10 weeks old. The reproductive efficiency of soybeans was not lowered by 4 to 7 weeks of competition after sowing of soybeans. Competition between the two species for the entire growing season resulted in a significant decrease in plant height of soybeans. The total d.m./plant was negatively correlated with an increase in the length of competition. Competition during the first 5 to 9 weeks of the life cycle of soybeans was more deleterious to soybean productivity than competition during the last 5 to 9 weeks of its life cycle. From summary

Item Type: Article
Author Affiliation: Department of Plant Science, Univ. Western Ontario, London, Ontario N6A 3B7, Canada.
Subjects: Atmosperic Science > Climatology
Plant Protection
Statistics and Experimentation > Experimentation
Divisions: Soyabean
Depositing User: Mr B Krishnamurthy
Date Deposited: 04 Jul 2012 03:56
Last Modified: 04 Jul 2012 03:56
Official URL: http://www.jstor.org/stable/4042821
URI: http://eprints.icrisat.ac.in/id/eprint/6463

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