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Title: Genotype × environment interaction analysis of North American shrub willow yield trials confirms superior performance of triploid hybrids

Development of dedicated bioenergy crop production systems will require accurate yield estimates, which will be important for determining many of the associated environmental and economic impacts of their production. Shrub willow (Salix spp) is being promoted in areas of the USA and Canada due to its adaption to cool climates and wide genetic diversity available for breeding improvement. Willow breeding in North America is in an early stage, and selection of elite genotypes for commercialization will require testing across broad geographic regions to gain an understanding of how shrub willow interacts with the environment. We analyzed a dataset of first-rotation shrub willow yields of 16 genotypes across 10 trial environments in the USA and Canada for genotype-by-environment interactions using the additive main effects and multiplicative interactions (AMMI) model. Mean genotype yields ranged from 5.22 to 8.58 oven-dry Mg ha -1 yr -1. Analysis of the main effect of genotype showed that one round of breeding improved yields by as much as 20% over check cultivars and that triploid hybrids, most notably Salix viminalis × S. miyabeana, exhibited superior yields. We also found important variability in genotypic response to environments, which suggests specific adaptability could be exploited among 16 genotypes formore » yield gains. Strong positive correlations were found between environment main effects and AMMI parameters and growing environment temperatures. These findings demonstrate yield improvements are possible in one generation and will be important for developing cultivar recommendations and for future breeding efforts.« less
Authors:
 [1] ;  [2] ;  [3] ;  [1] ;  [4] ;  [5] ;  [5] ;  [6] ;  [7] ;  [8] ;  [9] ;  [10] ;  [11] ; ORCiD logo [1]
  1. Cornell Univ., Geneva, NY (United States). New York State Agricultural Experiment Station. School of Integrative Plant Science. Horticulture Section
  2. State Univ. of New York College of Environmental Science and Forestry, Syracuse, NY (United States). Dept. of Forest and Natural Resources Management
  3. Michigan State Univ., Escanaba, MI (United States). Forest Biomass Innovation Center
  4. Cornell Univ., Ithaca, NY (United States). School of Integrative Plant Science. Soil and Crop Sciences Section
  5. Univ. of Saskatchewan, Saskatoon, SK (Canada). Dept. of Soil Science
  6. Univ. of Saskatchewan, Saskatoon, SK (Canada). Center for Northern Agroforestry and Afforestation
  7. Univ. of Connecticut, Storrs, CT (United States). Dept. of Plant Science
  8. Univ. of Montreal, QC (Canada). Plant Biology Research Inst.
  9. Univ. of Minnesota, Waseca, MN (United States). Southern Research and Outreach Center
  10. State Univ. of New York at Potsdam, NY (United States). Dept. of Biology
  11. Univ. of Illinois, Urbana, IL (United States). Dept. of Crop Sciences
Publication Date:
Grant/Contract Number:
FC36-05GO85041; 2012-68005-19703
Type:
Published Article
Journal Name:
Global Change Biology. Bioenergy
Additional Journal Information:
Journal Volume: 9; Journal Issue: 2; Journal ID: ISSN 1757-1693
Publisher:
Wiley
Research Org:
Cornell Univ., Ithaca, NY (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (EE-3B); National Inst. of Food and Agriculture (NIFA) (United States)
Contributing Orgs:
State Univ. of New York College of Environmental Science and Forestry, Syracuse, NY (United States); Michigan State Univ., Escanaba, MI (United States); Cornell Univ., Geneva, NY (United States); Univ. of Saskatchewan, Saskatoon, SK (Canada); Univ. of Connecticut, Storrs, CT (United States); Univ. of Montreal, QC (Canada); Univ. of Minnesota, Waseca, MN (United States); State Univ. of New York at Potsdam, NY (United States); Univ. of Illinois, Urbana, IL (United States)
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; AMMI; biomass; ploidy; Salix; short-rotation coppice; yield
OSTI Identifier:
1341327
Alternate Identifier(s):
OSTI ID: 1341328; OSTI ID: 1361672