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ARS Home » Southeast Area » Raleigh, North Carolina » Plant Science Research » Research » Publications at this Location » Publication #184595
Title: UNIFORM BARLEY WINTER HARDINESS NURSERY 2004-2005 REPORT

Author
item Livingston, David
item Premakumar, Ramaswamy

Submitted to: Uniform Winter Barley Yield Nursery Reports
Publication Type: Government Publication
Publication Acceptance Date: 8/16/2005
Publication Date: 8/16/2005
Citation: Livingston, D.P., Premakumar, R. 2005. Uniform barley winter hardiness nursery 2004-2005 report. Uniform Winter Barley Yield Nursery Reports. p. 1-7.

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 2004-05 UBWHN consisted of 19 entries including 6 check varieties(1 wheat variety and 5 barley varieties). The 13 experimental lines were contributions from 2 states. Six of these 13 lines were new entries this year. The nursery was planted at each location as two replications of single-row, 5-foot plots. Seed for 11 tests was sent to 7 US states and 2 foreign countries. All plants survived at 4 locations. The data from 6 locations were analyzed statistically. Winter survival for the lines, averaged over 6 locations, ranged from 22.1% -89.2%. Location averages ranged from 6.8 % to 98.0 %. Kenosha (wht check) had the highest survival (89.2 %) in the test when averaged over 6 locations. NE018199 had the highest survival of the experimental barley varieties (74.2 %) when averaged over 6 locations. Based on these tests, 9 experimental lines had overall averages which differed from NE018199 by an amount too small to determine if the differences were due to environmental variation or genetic differences in winter hardiness

Technical Abstract: The 2004-05 UBWHN consisted of 19 entries including 6 check varieties(1 wheat variety and 5 barley varieties). The 13 experimental lines were contributions from 2 states. Six of these 13 lines were new entries this year. The nursery was planted at each location as two replications of single-row, 5-foot plots. Seed for 11 tests was sent to 7 US states and 2 foreign countries. All plants survived at 4 locations. The data from 6 locations were analyzed statistically. Winter survival for the lines, averaged over 6 locations, ranged from 22.1% -89.2%. Location averages ranged from 6.8 % to 98.0 %. Kenosha (wht check) had the highest survival (89.2 %) in the test when averaged over 6 locations. NE018199 had the highest survival of the experimental barley varieties (74.2 %) when averaged over 6 locations. Based on these tests, 9 experimental lines had overall averages which differed from NE018199 by an amount too small to determine if the differences were due to environmental variation or genetic differences in winter hardiness.