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Comparative Morphology of Caucasian Old World Bluestem and Native Grasses

^a Kansas State Univ. Agricultural Research Center, Hays, KS 67601
^b Dep. of Plant and Soil Sci., Oklahoma State Univ., Stillwater, OK 74078

View larger version (40K): [in a new window]   Fig. 1. Precipitation from March through August for 2002 and 2003, and the long-term normal mean for Hays, KS.

View larger version (54K): [in a new window]   Fig. 2. Average high and low temperatures for March through August in 2002 and 2003, and the monthly long-term normal mean for Hays, KS.

View larger version (21K): [in a new window]   Fig. 3. Relationship of mean stage weight (MSW) to mean stage count (MSC) for Caucasian old world bluestem (OWB), big bluestem, little bluestem, and side-oats grama from eight harvests per season in 2002 and 2003 at Hays, KS.

View larger version (19K): [in a new window]   Fig. 4. Mean stage weight (MSW) trends of Caucasian old world bluestem (OWB), big bluestem, little bluestem, and side-oats grama at eight harvest dates in 2002 at Hays, KS. * indicates dates at which MSW of Caucasian OWB was greater than all three native species, LSD(0.05) = 0.24.

View larger version (20K): [in a new window]   Fig. 5. Mean stage weight (MSW) trends of Caucasian old world bluestem (OWB), big bluestem, little bluestem, and side-oats grama at eight harvest dates in 2003 at Hays, KS. * indicates dates at which MSW of Caucasian OWB was greater than all three native species LSD(0.05) = 0.25.