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Relationships between Water Use Efficiency, Carbon Isotope Discrimination, and Turf Performance in Genotypes of Kentucky Bluegrass during Drought

^a Dep. of Plant and Soil Sci., 12F Stockbridge Hall, Univ. of Massachusetts, Amherst, MA 01003
^b Dep. of Plants, Soils, and Biometeorology, Utah State Univ., Logan, UT 84322

View larger version (20K): [in a new window]   Fig. 1. Relationship between 13C discrimination () and water use efficiency (WUE) among 12 Kentucky bluegrass genotypes at Days 1 to 4 and 5 to 8 during drydown in 2002. ns = nonsignificant at P > 0.10. *Significant at P 0.05.

View larger version (17K): [in a new window]   Fig. 2. Relationship between 13C discrimination () and water use efficiency (WUE) among 12 Kentucky bluegrass genotypes at Days 1 to 4 and 5 to 8 during drydown in 2003. ns = nonsignificant at P > 0.10. Significant at P 0.10.