Biomass yields, cytogenetics, fertility, and compositional analyses of novel bioenergy grass hybrids (Tripidium spp.)
Abstract High biomass yields have been documented for Tripidium spp. (Erianthus spp., Saccharum spp.), but targeted breeding for bioenergy applications has been limited. Advanced, interspecific hybrids between Tripidium ravennae and T. arundinaceum were planted in replicated field plots in 2016. Com...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-05-01
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| Series: | GCB Bioenergy |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/gcbb.12676 |
| _version_ | 1819262514399019008 |
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| author | Nathan A. Maren Darren H. Touchell Thomas G. Ranney Hamid Ashrafi Matthew B. Whitfield Mari Chinn |
| author_facet | Nathan A. Maren Darren H. Touchell Thomas G. Ranney Hamid Ashrafi Matthew B. Whitfield Mari Chinn |
| author_sort | Nathan A. Maren |
| collection | DOAJ |
| description | Abstract High biomass yields have been documented for Tripidium spp. (Erianthus spp., Saccharum spp.), but targeted breeding for bioenergy applications has been limited. Advanced, interspecific hybrids between Tripidium ravennae and T. arundinaceum were planted in replicated field plots in 2016. Comparative feedstock evaluations examined biomass yields, cytogenetics, plant fertility, and compositional analyses relative to Miscanthus × giganteus. Dry biomass yields varied as a function of year and accession and increased each year ranging from 3.4 to 10.6, 8.6 to 37.3, and 23.7 to 60.6 Mg/ha for Tripidium hybrids compared to 2.3, 16.2 and 27.9 Mg/ha for M. × giganteus in 2016, 2017, and 2018, respectively. Cytology and cytometry confirmed that Tripidium hybrids were tetraploid with 2n = 4x = 40 (2C genome size = 5.06 pg) and intermediate between T. ravennae with 2n = 2x = 20 (2C genome size = 2.55 pg) and T. arundinaceum with 2n = 6x = 60 (2C genome size = 7.61 pg). Plant fertility characteristics varied considerably with some accessions producing no viable seeds or fewer than that observed for M. × giganteus. Accessions varied significantly for flowering culm number and height and dates of peak anthesis ranging from 14 September to 2 October. Variations in yield and compositional analyses contributed to variations in theoretical ethanol yields ranging from 10,181 to 27,546 L/ha for Tripidium accessions compared to 13,095 L/ha for M. × giganteus. Relative feed value (RFV) indices for winter‐harvested Tripidium accessions varied from 52.8 to 60.0 compared to M. × giganteus with 45.4. RFV for summer‐harvested Tripidium accessions varied from 71.6 to 80.5 compared to M. × giganteus with 61.0. These initial findings for Tripidium hybrids, including high biomass yields, cold hardiness, and desirable traits for multiple markets (e.g., forage, bioenergy, bioproducts), are promising and warrant further development of Tripidium as a temperate bioenergy feedstock. |
| first_indexed | 2024-12-23T19:58:54Z |
| format | Article |
| id | doaj.art-37584d4f8d844cdaad29fb5303b4f78e |
| institution | Directory Open Access Journal |
| issn | 1757-1693 1757-1707 |
| language | English |
| last_indexed | 2024-12-23T19:58:54Z |
| publishDate | 2020-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | GCB Bioenergy |
| spelling | doaj.art-37584d4f8d844cdaad29fb5303b4f78e2022-12-21T17:33:08ZengWileyGCB Bioenergy1757-16931757-17072020-05-0112536137310.1111/gcbb.12676Biomass yields, cytogenetics, fertility, and compositional analyses of novel bioenergy grass hybrids (Tripidium spp.)Nathan A. Maren0Darren H. Touchell1Thomas G. Ranney2Hamid Ashrafi3Matthew B. Whitfield4Mari Chinn5Mountain Crop Improvement Lab Department of Horticultural Science Mountain Horticultural Crops Research and Extension Center North Carolina State University Mills River NC USAMountain Crop Improvement Lab Department of Horticultural Science Mountain Horticultural Crops Research and Extension Center North Carolina State University Mills River NC USAMountain Crop Improvement Lab Department of Horticultural Science Mountain Horticultural Crops Research and Extension Center North Carolina State University Mills River NC USADepartment of Horticultural Science North Carolina State University Raleigh NC USADepartment of Biological and Agricultural Engineering North Carolina State University Raleigh NC USADepartment of Biological and Agricultural Engineering North Carolina State University Raleigh NC USAAbstract High biomass yields have been documented for Tripidium spp. (Erianthus spp., Saccharum spp.), but targeted breeding for bioenergy applications has been limited. Advanced, interspecific hybrids between Tripidium ravennae and T. arundinaceum were planted in replicated field plots in 2016. Comparative feedstock evaluations examined biomass yields, cytogenetics, plant fertility, and compositional analyses relative to Miscanthus × giganteus. Dry biomass yields varied as a function of year and accession and increased each year ranging from 3.4 to 10.6, 8.6 to 37.3, and 23.7 to 60.6 Mg/ha for Tripidium hybrids compared to 2.3, 16.2 and 27.9 Mg/ha for M. × giganteus in 2016, 2017, and 2018, respectively. Cytology and cytometry confirmed that Tripidium hybrids were tetraploid with 2n = 4x = 40 (2C genome size = 5.06 pg) and intermediate between T. ravennae with 2n = 2x = 20 (2C genome size = 2.55 pg) and T. arundinaceum with 2n = 6x = 60 (2C genome size = 7.61 pg). Plant fertility characteristics varied considerably with some accessions producing no viable seeds or fewer than that observed for M. × giganteus. Accessions varied significantly for flowering culm number and height and dates of peak anthesis ranging from 14 September to 2 October. Variations in yield and compositional analyses contributed to variations in theoretical ethanol yields ranging from 10,181 to 27,546 L/ha for Tripidium accessions compared to 13,095 L/ha for M. × giganteus. Relative feed value (RFV) indices for winter‐harvested Tripidium accessions varied from 52.8 to 60.0 compared to M. × giganteus with 45.4. RFV for summer‐harvested Tripidium accessions varied from 71.6 to 80.5 compared to M. × giganteus with 61.0. These initial findings for Tripidium hybrids, including high biomass yields, cold hardiness, and desirable traits for multiple markets (e.g., forage, bioenergy, bioproducts), are promising and warrant further development of Tripidium as a temperate bioenergy feedstock.https://doi.org/10.1111/gcbb.12676bioenergybioprocessingErianthusfertilityforagelignocellulose |
| spellingShingle | Nathan A. Maren Darren H. Touchell Thomas G. Ranney Hamid Ashrafi Matthew B. Whitfield Mari Chinn Biomass yields, cytogenetics, fertility, and compositional analyses of novel bioenergy grass hybrids (Tripidium spp.) GCB Bioenergy bioenergy bioprocessing Erianthus fertility forage lignocellulose |
| title | Biomass yields, cytogenetics, fertility, and compositional analyses of novel bioenergy grass hybrids (Tripidium spp.) |
| title_full | Biomass yields, cytogenetics, fertility, and compositional analyses of novel bioenergy grass hybrids (Tripidium spp.) |
| title_fullStr | Biomass yields, cytogenetics, fertility, and compositional analyses of novel bioenergy grass hybrids (Tripidium spp.) |
| title_full_unstemmed | Biomass yields, cytogenetics, fertility, and compositional analyses of novel bioenergy grass hybrids (Tripidium spp.) |
| title_short | Biomass yields, cytogenetics, fertility, and compositional analyses of novel bioenergy grass hybrids (Tripidium spp.) |
| title_sort | biomass yields cytogenetics fertility and compositional analyses of novel bioenergy grass hybrids tripidium spp |
| topic | bioenergy bioprocessing Erianthus fertility forage lignocellulose |
| url | https://doi.org/10.1111/gcbb.12676 |
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