Fig. 1.

Mean (± SEM) percent overwinter survival of three hairy vetch varieties grown in monoculture or in mixture with cereal rye, (A) 2008–2009 and (B) 2009–2010. Neither variety nor cropping system effects were significant (0.05) in 2008–2009. In 2009–2010, cropping system effects were significant (p < 0.05), but neither variety nor variety × cropping system interactions were significant (0.05).

 


Fig. 2.

Relationship between the number of flowering racemes per stem (Fn) and visual estimates of flowering percentage, 2009 and 2010.

 


Fig. 3.

Mean (± SEM) number of flowering racemes per stem (Fn) of three hairy vetch varieties grown in monoculture or in mixture with cereal rye, 2008–2009 (A) and 2009–2010 (B).

 


Fig. 4.

Mean (± SEM) cover crop shoot dry weight at the time of mowing for hairy vetch monoculture (‘mono’) or rye–vetch mixtures, 2009 and 2010. Data within each cropping system is mean of all three varieties.

 


Fig. 5.

Mean (± SEM) cover crop shoot N by source at the time of mowing for hairy vetch monoculture (‘mono’) or rye–vetch mixtures, 2009 and 2010. Data within each cropping system is mean of all three varieties.