Storage and Handling Characteristics of Trinexapac-ethyl Treated Kentucky Bluegrass Sod

in HortScience
Authors:
Neil L. HeckmanDepartment of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE 68583-0724

Search for other papers by Neil L. Heckman in
ASHS
Google Scholar
PubMed
Close
,
Garald L. HorstDepartment of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE 68583-0724

Search for other papers by Garald L. Horst in
ASHS
Google Scholar
PubMed
Close
,
Roch E. GaussoinDepartment of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE 68583-0724

Search for other papers by Roch E. Gaussoin in
ASHS
Google Scholar
PubMed
Close
, and
Kevin W. FrankDepartment of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE 68583-0724

Search for other papers by Kevin W. Frank in
ASHS
Google Scholar
PubMed
Close

Internal heating during sod storage can lead to plant deterioration and is a limiting factor in sod transportation. Storage practices such as the use of refrigeration and vacuum packaging have increased storage time; however, these are usually not practical or economical. Experiments were conducted to develop a feasible growth regulator management technique, using trinexapac-ethyl, to increase the storage life of Kentucky bluegrass (Poa pratensis L.) sod. Experimental setup for all experiments was a completely randomized design with a 2 (trinexapac-ethyl vs. control) × 3 (storage times) factorial treatment arrangement with 3 replications. Trinexapac-ethyl was applied at 0.23 kg·ha-1 to Kentucky bluegrass 2 weeks prior to harvesting. Results showed that sod treated with trinexapac-ethyl was as much as 10 °C cooler than the controls in the center of the sod stacks after 48 hours of storage. The reduced sod temperatures led to a 30% greater tensile strength and 17% better quality ratings in treated sod after 24 hours of storage. A preharvest application of trinexapac-ethyl appears to increase storage times of Kentucky bluegrass sod, which may improve sod market quality. Chemical name used: [4(cyclopropyl-α-hydroxy-methylene)-3,5-dioxocyclohexanecarboxylic acid ethyl ester] (trinexapac-ethyl).

  • Collapse
  • Expand