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Comparative Responses of Two Kentucky Bluegrass Cultivars to Salinity Stress

^a Dep. of Horticulture and Landscape Architecture, Colorado State Univ., Fort Collins, CO 80523-1173
^b Dep. of Plant Sciences, Univ. of Arizona, Tucson, AZ 85721-0036

View larger version (25K): [in a new window]   Fig. 1. Effect of salinity between 2.2 and 14.2 dS m-1 on percentage leaf firing of Kenblue and Limousine Kentucky bluegrass in experiment II. Vertical lines represent standard errors. Columns labeled with different letters are significantly different, within a given salinity level, at 0.05 probability using Fisher's LSD test.

View larger version (28K): [in a new window]   Fig. 2. Mean weekly clipping yield of Kenblue and Limousine Kentucky bluegrass as influenced by salinity from 2.2 to 14.2 dS m-1 in experiment II. Vertical lines represent standard errors. Columns labeled with different letters are significantly different, within a given salinity level, at 0.05 probability using Fisher's LSD test.

View larger version (27K): [in a new window]   Fig. 3. Root mass of Kenblue and Limousine Kentucky bluegrass as affected by salinity from 2.2 to 14.2 dS m-1 in experiment II. Vertical lines represent standard errors. Columns labeled with different letters are significantly different, within a given salinity level, at 0.05 probability using Fisher's LSD test.

View larger version (34K): [in a new window]   Fig. 4. Leaf water potential, osmotic potential, and pressure potential of Kenblue and Limousine Kentucky bluegrass grown under five salinity treatments. Vertical lines represent standard errors. Columns labeled with different letters are significantly different at the 0.05 probability level using Fisher's LSD test.

View larger version (27K): [in a new window]   Fig. 5. Proline content in Kenblue and Limousine Kentucky bluegrass shoot tissues under five salinity levels. Vertical lines represent standard errors. Columns labeled with different letters are significantly different at the 0.05 probability level using Fisher's LSD test.