Estimation of alfalfa fall dormancy using spaced plant and sward trials across multiple environments
Abstract Background Alfalfa is a globally important forage crop. Cultivars are characterized by fall dormancy (FD). FD affects biomass yield and winter survival and is used to identify appropriate growing regions of cultivars. It has historically been assessed by measuring the natural height of regr...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-03-01
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| Series: | Grassland Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/glr2.12042 |
| _version_ | 1797823434411999232 |
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| author | Scott A. Newell Daniel J. Undersander Donald Viands Julie Hansen Steve Orloff Daniel H. Putnam E. Charles Brummer |
| author_facet | Scott A. Newell Daniel J. Undersander Donald Viands Julie Hansen Steve Orloff Daniel H. Putnam E. Charles Brummer |
| author_sort | Scott A. Newell |
| collection | DOAJ |
| description | Abstract Background Alfalfa is a globally important forage crop. Cultivars are characterized by fall dormancy (FD). FD affects biomass yield and winter survival and is used to identify appropriate growing regions of cultivars. It has historically been assessed by measuring the natural height of regrowth in autumn of spaced plants in the field. Because commercial alfalfa is normally grown as a solid planted sward, FD could be different if plants were grown under real production conditions. The objective of this experiment was to assess whether FD ratings obtained from swards were similar to those obtained on spaced plants. Methods We evaluated 20 alfalfa cultivars in field trials established in 2015 at five locations in the United States. We harvested the trials in early autumn and measured regrowth plant height approximately 3 weeks later in 2015 and 2016. Results Autumn plant height responded as expected for the established check cultivars in all locations. Fall dormancy ratings for cultivars under both management systems were highly correlated. Conclusions Estimating FD from spaced plant height measurements in autumn is very robust, and using height data from sward plots gives equivalent results to that measured in spaced plant nurseries. This finding has many practical advantages. |
| first_indexed | 2024-03-13T10:23:57Z |
| format | Article |
| id | doaj.art-848fce7490b243cba1ea00897705c5fe |
| institution | Directory Open Access Journal |
| issn | 2097-051X 2770-1743 |
| language | English |
| last_indexed | 2024-03-13T10:23:57Z |
| publishDate | 2023-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Grassland Research |
| spelling | doaj.art-848fce7490b243cba1ea00897705c5fe2023-05-19T14:45:02ZengWileyGrassland Research2097-051X2770-17432023-03-0121152110.1002/glr2.12042Estimation of alfalfa fall dormancy using spaced plant and sward trials across multiple environmentsScott A. Newell0Daniel J. Undersander1Donald Viands2Julie Hansen3Steve Orloff4Daniel H. Putnam5E. Charles Brummer6Department of Plant Sciences University of California, Davis Davis California USADepartment of Agronomy University of Wisconsin, Madison Madison Wisconsin USAPlant Breeding & Genetics Section, School of Integrated Plant Sciences Cornell University Ithaca New York USAPlant Breeding & Genetics Section, School of Integrated Plant Sciences Cornell University Ithaca New York USAUniveristy of California Cooperative Extension Yreka California USADepartment of Plant Sciences University of California, Davis Davis California USADepartment of Plant Sciences University of California, Davis Davis California USAAbstract Background Alfalfa is a globally important forage crop. Cultivars are characterized by fall dormancy (FD). FD affects biomass yield and winter survival and is used to identify appropriate growing regions of cultivars. It has historically been assessed by measuring the natural height of regrowth in autumn of spaced plants in the field. Because commercial alfalfa is normally grown as a solid planted sward, FD could be different if plants were grown under real production conditions. The objective of this experiment was to assess whether FD ratings obtained from swards were similar to those obtained on spaced plants. Methods We evaluated 20 alfalfa cultivars in field trials established in 2015 at five locations in the United States. We harvested the trials in early autumn and measured regrowth plant height approximately 3 weeks later in 2015 and 2016. Results Autumn plant height responded as expected for the established check cultivars in all locations. Fall dormancy ratings for cultivars under both management systems were highly correlated. Conclusions Estimating FD from spaced plant height measurements in autumn is very robust, and using height data from sward plots gives equivalent results to that measured in spaced plant nurseries. This finding has many practical advantages.https://doi.org/10.1002/glr2.12042alfalfafall dormancylucerneMedicago sativaplant height |
| spellingShingle | Scott A. Newell Daniel J. Undersander Donald Viands Julie Hansen Steve Orloff Daniel H. Putnam E. Charles Brummer Estimation of alfalfa fall dormancy using spaced plant and sward trials across multiple environments Grassland Research alfalfa fall dormancy lucerne Medicago sativa plant height |
| title | Estimation of alfalfa fall dormancy using spaced plant and sward trials across multiple environments |
| title_full | Estimation of alfalfa fall dormancy using spaced plant and sward trials across multiple environments |
| title_fullStr | Estimation of alfalfa fall dormancy using spaced plant and sward trials across multiple environments |
| title_full_unstemmed | Estimation of alfalfa fall dormancy using spaced plant and sward trials across multiple environments |
| title_short | Estimation of alfalfa fall dormancy using spaced plant and sward trials across multiple environments |
| title_sort | estimation of alfalfa fall dormancy using spaced plant and sward trials across multiple environments |
| topic | alfalfa fall dormancy lucerne Medicago sativa plant height |
| url | https://doi.org/10.1002/glr2.12042 |
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