Fig. 1.
Fig. 1.

(A) Precipitation and (B) temperature recorded in two consecutive growing seasons (October 2008– September 2009 and October 2009– September 2010) at Kellogg Biological Station, Hickory Corners, MI.

 


Fig. 2.
Fig. 2.

Seed yield (Mg ha−1) for Triticum spp. (two annual checks and four perennial test lines) in a 2009–2010 field study at Kellogg Biological Station, Hickory Corners, MI. Means and standard errors for each accession in 2009 and 2010 are shown separately.

 


Fig. 3.
Fig. 3.

Seed yield (Mg ha−1) for Secale spp. (one annual check and one perennial test line) in a 2009–2010 field study at Kellogg Biological Station, Hickory Corners, MI. Means and standard errors for each accession in 2009 and 2010 are shown separately.

 


Fig. 4.
Fig. 4.

Kernel mass (mg kernel−1) for four perennial wheat lines (Triticum aestivum × Thinopyrum elongatum) and one perennial rye (Secale cereale × montanum), including 1- and 2- yr-old plants, in a 2010 field study at Kellogg Biological Station, Hickory Corners, MI. Means and standard errors for 1- and 2-yr-old plants are shown separately