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Agronomic Changes from 58 Years of Genetic Improvement of Short-Season Soybean Cultivars in Canada

Malcolm J. Morrison, Harvey D. Voldeng and Elroy R. Cober

Agric. and Agri-Food Canada, Eastern Cereal and Oilseed Res. Cent., Central Exp. Farm, K.W. Neatby Bldg., Ottawa, ON, Canada, K1A 0C6



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Fig. 1 Relationship between year of cultivar release and (a) seed yield, (b) weight of 1000 seed, and (c) number of seeds per plant. The error bar represents differences between cultivars (LSD 0.05). *,** Linear correlation coefficient significant at the 0.05 and 0.01 probability levels, respectively

 


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Fig. 2 Relationship between year of cultivar release and (a) protein concentration; (b) oil concentration; (c) protein + oil concentration; and (d) seed quality. The error bar represents differences between cultivars (LSD 0.05). ** Linear correlation coefficient significant at the 0.01 probability level

 


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Fig. 3 Relationship between year of cultivar release and (a) plant height, (b) lodging rating, and (c) foliar disease rating. The error bar represents differences between cultivars (LSD 0.05). ** Linear correlation coefficient significant at the 0.01 probability level

 





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