Table 2 Mean winter survival percentage and family-mean broad sense heritability (H2) for five switchgrass populations and five population groups, based on field data from Spring 2014 or 2015 at Arlington and Hancock, WI
Spring 2014Spring 2015
Mean winter SurvivalH2aMean winter SurvivalH2
%%
Liberty (111)b36.7 ± 0.70.2449.3 ± 0.30.13
WS11L (36)19.8 ± 1.1NA29.4 ± 0.9NA
WS08L (130)37.4 ± 0.90.7223.1 ± 0.70.71
WS09L (69)5.9 ± 0.50.623.1 ± 0.40.68
Expresso (59)0.5 ± 0.10.870.2 ± 0.10.92
All populations (368)24.8 ± 1.10.9524.5 ± 1.10.93
All Lowland (257)19.6 ± 1.40.9913.8 ± 1.00.89
Southern Lowland (168)5.3 ± 0.80.985.6 ± 0.80.85
Eastern Lowland (89)46.5 ± 1.50.6329.3 ± 1.20.61
  • a NA = No heritability estimates due to evaluation of this population at only one location.

  • b The number inside the parenthesis represents number of half-sib families.