Differences in Sod Strength, Rooting, and Turfgrass Quality of Kentucky Bluegrass Cultivars Resulting from Seasonal and Environmental Conditions1
- L. H. Taylor and
- R. E. Schmidt
A field trial of Kentucky bluegrass (Poa pratensis L.) cultivars and selections was established at Blacksburg, Va., USA, in 1972 and evaluated for 4 years. Sod samples were removed and various supplementary measurements made to see which might relate to field performance.
Sod was removed in 1974 and 1976 and used to measure sod strength, regrowth from rhizomes (in area where sod was removed), strength of transplant sod rooting in sun and shade, and growth at moderate and high temperatures in growth chambers. Performances in the field and in these supplementary trials are reported and compared for 36 Kentucky bluegrass strains.
Sod strength in April 1974 was not related to turf quality ratings that year but July–August sod strength was. Shoot growth from rhizomes was negatively correlated with 1974 turf quality ratings. High growth chamber temperatures inhibited root and shoot growth. Total root weights and initiation of new roots were not correlated, but both were related to turf quality in the growth chamber and field trial. Rooting in sun and shade was correlated with shoot growth from rhizomes and with turf performance in the field 2 years later.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © 1980. . Copyright © 1980 by the American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, and International Turfgrass Society, 5585 Guilford Rd., Madison, WI 53711 USA