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ARS Home » Southeast Area » Raleigh, North Carolina » Plant Science Research » Research » Publications at this Location » Publication #152119
Title: RESULTS FROM THE UNIFORM BARLEY WINTER HARDINESS NURSERY 2002-2003.

Author
item Livingston, David
item Premakumar, Ramaswamy
item Caudell, Sharyn

Submitted to: Extension Service Bulletins
Publication Type: Other
Publication Acceptance Date: 9/10/2003
Publication Date: 9/30/2003
Citation: LIVINGSTON, D.P., PREMAKUMAR, R., CAUDELL, S.R. RESULTS FROM THE UNIFORM BARLEY WINTER HARDINESS NURSERY 2002-2003.. EXTENSION SERVICE BULLETINS. 2003.

Interpretive Summary: The Uniform Barley Winter Hardiness Nursery (UBWHN) 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 2002-03 UBWHN consisted of 16 entries including six check varieties (one wheat variety and five barley varieties). The 10 experimental lines were contributions from two states. Nine of these 10 lines were new entries this year. The nursery was planted at each location as two replications of single-row, 5-foot plots. Seed for nine tests was sent to eight US states and one foreign country. All plants survived at six locations. The data from three locations were analyzed statistically. Winter survival for the lines, averaged over three locations, ranged from 61% to 100%. Location averages ranged from 78.1% to 97.5%. Kenosha (wheat check) had the highest survival (100 %) in the test when averaged over three locations. VA00H-122 had the highest survival of the barley varieties (91.3 %) when averaged over three locations. Based on these tests, nine experimental lines had overall averages which differed from VA00H-122 by an amount too small to determine if the differences were due to environmental variation or genetic differences in winter hardiness.

Technical Abstract: The 2002-03 UBWHN consisted of 16 entries including six check varieties (one wheat variety and five barley varieties). The 10 experimental lines were contributions from two states. Nine of these 10 lines were new entries this year. The nursery was planted at each location as two replications of single-row, 5-foot plots. Seed for nine tests was sent to eight US states and one foreign country. All plants survived at six locations. The data from three locations were analyzed statistically. Winter survival for the lines, averaged over three locations, ranged from 61% to 100%. Location averages ranged from 78.1% to 97.5%. Kenosha (wheat check) had the highest survival (100 %) in the test when averaged over 3 locations. VA00H-122 had the highest survival of the barley varieties (91.3 %) when averaged over three locations. Based on these tests, nine experimental lines had overall averages which differed from VA00H-122 by an amount too small to determine if the differences were due to environmental variation or genetic differences in winter hardiness.