Journal
LEGUME RESEARCH
Volume 44, Issue 1, Pages 15-20Publisher
AGRICULTURAL RESEARCH COMMUNICATION CENTRE
DOI: 10.18805/LR-551
Keywords
Alfalfa; Fall dormancy; Forage quality; Winter survival rate; Yield
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Selection for fall dormancy in alfalfa can impact other traits such as dry matter yield, winter survival rate, and chemical compositions. The study found that varieties Zhongmu No. 2 and Caoyuan No. 3 had high winter survival rates and were recommended for planting in Hohhot, Inner Mongolia, China. Zhongmu No. 2 had the highest dry matter yield over four years, along with lower fiber contents and higher relative feed values.
Selection for fall dormancy (FD) in alfalfa can impact other traits, such as dry matter yield (DMY), winter survival rate (WSR) and chemical compositions. Nine alfalfa varieties were mowed during the early flowering stage from 2015 to 2018. The results showed that the WSRs of both Zhongmu No. 2 and Caoyuan No. 3 exceeded 95% and there was a significant negative correlation between the FD rating and WSR (-0.988; P<0.01). The four-year average DMY of Zhongmu No. 2 was the highest (11,912 kg ha(-1)). The crude protein contents of Caoyuan No. 3 and Zhongmu No. 2 were both greater than 20%. Zhongmu No. 2 had the lowest acid detergent fiber (30.2%) and neutral detergent fiber (48.4%) contents as well as the highest relative feed values (126). Zhongmu No. 2, Adrenalin, Gold Empress and Caoyuan No. 3 (FD 1-4) were the optimum alfalfa varieties for planting in Hohhot, Inner Mongolia, China.
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