Table 1 Switchgrass seed sources used in this study
Strain | Description | Source |
|---|---|---|
‘Kanlow’ (K) | Released lowland-tetraploid cultivar | NRCS-Manhattan Kansas Manhattan Plant Materials Center |
Kanlow N1 (N1) | Kanlow-derived population that had survived winter-kill over a four year period in Nebraska | Syn 2 increase of isolated polycross from selected plants |
‘Summer’ (S) | Upland tetraploid with exceptional vigor and biomass yield in Nebraska and heading later than DOY 209 in 2005 | Syn 1 increase from 1000 individual polycross nursery |
Kanlow N1 Early Maturity (N1EM) | Derived from Kanlow N1 with high yields and heading day earlier than DOY224 | Syn 1 bulk harvest from 15 individuals grown in an isolated polycross nursery |
KxS F2 (KxS) | Upland-lowland hybrid population, K(♂) × S(♀) | Syn 2 seed increase 1 generation removed from initial hybrids grown in an isolated polycross |