ARS | Publication request: UNIFORM OAT WINTER HARDINESS NURSERY 1994-95

Submitted to: Extension Service Bulletins
Publication Type: Other
Publication Acceptance Date: September 9, 1996
Publication Date: N/A

Interpretive Summary: The Uniform Oat Winter Hardiness Nursery (UOWHN) is a cooperative effort of the USDA-ARS and various state Agricultural Experiment Stations to allow plant breeders to evaluate promising experimental cultivars for their ability to survive the winter in a wide variety of growing conditions. The 1994-95 UOWHN consisted of 36 entries including 4 check varieties. The 32 experimental lines were contributions from 5 states and 1 foreign country; 20 of these 32 lines were new entries this year. The nursery was planted at each location as 2 replications of single-row, 5-foot plots. Seed for 17 tests was sent to 9 states and 4 foreign countries. All plants survived at 4 locations, and the data from the remaining 13 locations was analyzed statistically. Winter survival for the lines, averaged over 13 locations, ranged from 47.1 to 85.9%. Location averages ranged from 4.0 to 99.3%. PA83G785-2 had the highest survival in the test when averaged over 13 locations. Fourteen other experimental lines had overall averages which differed from PA83G785-2 by an amount small enough that, based on these tests, it was impossible to tell whether the differences were due to environmental variation or to genetic differences in winter hardiness.

Technical Abstract: The 1994-95 UOWHN consisted of 36 entries including 4 check varieties. The 32 experimental lines were contributions from 5 states and 1 foreign country; 20 of these 32 lines were new entries this year. The nursery was planted at each location as 2 replications of single-row, 5-foot plots. Seed for 17 tests was sent to 9 states and 4 foreign countries. All plants survived at 4 locations, and the data from the remaining 13 locations was analyzed statistically. Winter survival for the lines, averaged over 13 locations, ranged from 47.1 to 85.9%. Location averages ranged from 4.0 to 99.3%. PA83G785-2 had the highest survival in the test when averaged over 13 locations. Fourteen other experimental lines had overall averages which differed from PA83G785-2 by an amount small enough that, based on these tests, it was impossible to tell whether the differences were due to environmental variation or to genetic differences in winter hardiness.