Abstract
Turfs of bermudagrass (Cynodon dactylon (L.) Pers. cv. 'Tifgreen'), Kentucky bluegrass (Pao pratensis L. cv. 'Touchdown'), perennial ryegrass (Lolium perenne L. cv. 'Manhattan'), and four St. Augustinegrass (Stenotaphrum secundatum (Walt. Kuntze) accessions of deferring hardiness (Floratam, NCS A-21, Scotts 1081, and Texas Common) were artificially cold hardened for two weeks in a growth chamber at D/N temperature regime of 5.2 and 3.0 C, respectively. Cold hardiness levels of each species and accession were then determined using a low temperature stress simulator which consisted of a chest freezer modified with a heat source, Partlow recording cam programmer-controller, and an externally driven fan. The temperature range of the low temperature stress simulator was from ambient to -20.1 C. Concurrent with cold hardiness determinations, the crowns of replicate turfs of each species accession were analyzed for fatty acid content of their whole cell mitochondrial fractions. ...
DiPaola, Joseph Michael (1979). Fatty acid composition of turfgrass crowns and its relationship with direct low temperature hardiness. Texas A&M University. Texas A&M University. Libraries. Available electronically from
https : / /hdl .handle .net /1969 .1 /DISSERTATIONS -145526.