A Multi-Site Evaluation of Winter Hardiness in Indigenous Alfalfa Cultivars in Northern China
Integration of perennial grass species into the current food production systems, especially in the agropastoral regions worldwide, may produce multiple benefits including, among others, a more stable productivity and a smaller eco-environmental footprint. However, one of the fundamental challenges f...
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MDPI AG
2021
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oai:doaj.org-article:a2c3012db5734a9191976dea909accf02021-11-25T16:46:00ZA Multi-Site Evaluation of Winter Hardiness in Indigenous Alfalfa Cultivars in Northern China10.3390/atmos121115382073-4433https://doaj.org/article/a2c3012db5734a9191976dea909accf02021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4433/12/11/1538https://doaj.org/toc/2073-4433Integration of perennial grass species into the current food production systems, especially in the agropastoral regions worldwide, may produce multiple benefits including, among others, a more stable productivity and a smaller eco-environmental footprint. However, one of the fundamental challenges facing the large-scale adoption of such grass species is their ability to withstand the vagaries of winter in these regions. Here, we present a comprehensive evaluation of the winter hardiness of 50 indigenous Chinese cultivars of alfalfa, a high-quality leguminous perennial grass, in comparison with six introduced U.S. cultivars in a multi-site field experiment in northern China. Our results reveal that indigenous cultivars have stronger winter hardiness than introduced cultivars. Cultivars native in the north performed better than southern cultivars, suggesting that suitability evaluation is an unavoidable step proceeding any regional implementations. Our results also show that the metric we used to assess alfalfa’s winter hardiness, the average score index (ASI), produced more consistent results than another more-widely used metric of winter survival rate (WSR). These findings offer a systematic field evidence that supports regional cropping system adjustment and production system betterment to ensure food security under climate change in the region and beyond.Lijun XuQian LiuYingying NieFeng LiGuixia YangYa TaoShijie LvXinjia WuLiming YeMDPI AGarticlealfalfaaverage score indexwinter survival rateclimate changeadaptationmitigationMeteorology. ClimatologyQC851-999ENAtmosphere, Vol 12, Iss 1538, p 1538 (2021) |
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| topic |
alfalfa average score index winter survival rate climate change adaptation mitigation Meteorology. Climatology QC851-999 |
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alfalfa average score index winter survival rate climate change adaptation mitigation Meteorology. Climatology QC851-999 Lijun Xu Qian Liu Yingying Nie Feng Li Guixia Yang Ya Tao Shijie Lv Xinjia Wu Liming Ye A Multi-Site Evaluation of Winter Hardiness in Indigenous Alfalfa Cultivars in Northern China |
| description |
Integration of perennial grass species into the current food production systems, especially in the agropastoral regions worldwide, may produce multiple benefits including, among others, a more stable productivity and a smaller eco-environmental footprint. However, one of the fundamental challenges facing the large-scale adoption of such grass species is their ability to withstand the vagaries of winter in these regions. Here, we present a comprehensive evaluation of the winter hardiness of 50 indigenous Chinese cultivars of alfalfa, a high-quality leguminous perennial grass, in comparison with six introduced U.S. cultivars in a multi-site field experiment in northern China. Our results reveal that indigenous cultivars have stronger winter hardiness than introduced cultivars. Cultivars native in the north performed better than southern cultivars, suggesting that suitability evaluation is an unavoidable step proceeding any regional implementations. Our results also show that the metric we used to assess alfalfa’s winter hardiness, the average score index (ASI), produced more consistent results than another more-widely used metric of winter survival rate (WSR). These findings offer a systematic field evidence that supports regional cropping system adjustment and production system betterment to ensure food security under climate change in the region and beyond. |
| format |
article |
| author |
Lijun Xu Qian Liu Yingying Nie Feng Li Guixia Yang Ya Tao Shijie Lv Xinjia Wu Liming Ye |
| author_facet |
Lijun Xu Qian Liu Yingying Nie Feng Li Guixia Yang Ya Tao Shijie Lv Xinjia Wu Liming Ye |
| author_sort |
Lijun Xu |
| title |
A Multi-Site Evaluation of Winter Hardiness in Indigenous Alfalfa Cultivars in Northern China |
| title_short |
A Multi-Site Evaluation of Winter Hardiness in Indigenous Alfalfa Cultivars in Northern China |
| title_full |
A Multi-Site Evaluation of Winter Hardiness in Indigenous Alfalfa Cultivars in Northern China |
| title_fullStr |
A Multi-Site Evaluation of Winter Hardiness in Indigenous Alfalfa Cultivars in Northern China |
| title_full_unstemmed |
A Multi-Site Evaluation of Winter Hardiness in Indigenous Alfalfa Cultivars in Northern China |
| title_sort |
multi-site evaluation of winter hardiness in indigenous alfalfa cultivars in northern china |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/a2c3012db5734a9191976dea909accf0 |
| work_keys_str_mv |
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| _version_ |
1718412974013546496 |