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| Yield Evaluation of Twenty-Eight Alfalfa Cultivars in Hebei Province of China |
| ZHANG Tie-jun, KANG Jun-mei, GUO Wen-shan, ZHAO Zhong-xiang, XU Yu-peng, YAN Xudong , YANG Qing-chuan |
1、Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.China
2、Cangzhou Technical College, Cangzhou 061001, P.R.China |
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摘要 Cultivar selection is important for alfalfa (Medicago sativa L.) hay production. From 2009 to 2012, a field study was conducted to evaluate the dry matter yield (DMY) of 28 cultivars in Cangzhou District of Hebei province, China, and to determine the most suitable cultivars for this province and other zones with similar climate conditions. 28 alfalfa cultivars were sown in late March of 2009 and were harvested for hay four times in each subsequent year. The results showed that the climatic conditions resulted in significant differences in annual DMY among years, with the second year being the highest and the first year the lowest. The top five cultivars with the highest total DMY were L2750 (62.75 t ha-1), Horn (62.72 t ha-1), 86-266 (61.55 t ha-1), German (61.44 t ha-1) and Zhongmu 1 (61.18 t ha-1), respectively. Across all four years, first harvest had the highest ratios to annual DMY except the cultivar of Rambler, while the fourth harvest had the lowest ratio. There were positive correlation relationships between DMY of each harvest and annual DMY, and the correlation coefficients were all significant in four years. And the path coefficients of first harvest were always the highest in four years. The qualities showed small variations among these cultivars and the cultivar L3750 presented the highest crude protein in both years. Crude protein had significant positive correlation with relative feed value (RFV) in both years while crude fiber had significant negative correlation with RFV and crude fiber.
Abstract Cultivar selection is important for alfalfa (Medicago sativa L.) hay production. From 2009 to 2012, a field study was conducted to evaluate the dry matter yield (DMY) of 28 cultivars in Cangzhou District of Hebei province, China, and to determine the most suitable cultivars for this province and other zones with similar climate conditions. 28 alfalfa cultivars were sown in late March of 2009 and were harvested for hay four times in each subsequent year. The results showed that the climatic conditions resulted in significant differences in annual DMY among years, with the second year being the highest and the first year the lowest. The top five cultivars with the highest total DMY were L2750 (62.75 t ha-1), Horn (62.72 t ha-1), 86-266 (61.55 t ha-1), German (61.44 t ha-1) and Zhongmu 1 (61.18 t ha-1), respectively. Across all four years, first harvest had the highest ratios to annual DMY except the cultivar of Rambler, while the fourth harvest had the lowest ratio. There were positive correlation relationships between DMY of each harvest and annual DMY, and the correlation coefficients were all significant in four years. And the path coefficients of first harvest were always the highest in four years. The qualities showed small variations among these cultivars and the cultivar L3750 presented the highest crude protein in both years. Crude protein had significant positive correlation with relative feed value (RFV) in both years while crude fiber had significant negative correlation with RFV and crude fiber.
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Received: 09 June 2013
Accepted: 10 October 2014
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| Fund: This research was supported by the Earmarked Fund for the Modern Agro-Industry Technology Research System, China (CARS-35). |
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Corresponding Authors:
YANG Qing-chuan, Tel/Fax: +86-10-62735996,E-mail: qchyang66@163.com
E-mail: qchyang66@163.com
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| About author: ZHANG Tie-jun, Tel: +86-10-62816357-601, Mobile: 18911629095, E-mail: tiejunzhang@126.com; |
Cite this article:
ZHANG Tie-jun, KANG Jun-mei, GUO Wen-shan, ZHAO Zhong-xiang, XU Yu-peng, YAN Xudong , YANG Qing-chuan.
2014.
Yield Evaluation of Twenty-Eight Alfalfa Cultivars in Hebei Province of China. Journal of Integrative Agriculture, 13(10): 2260-2267.
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