Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2026, Vol. 42 ›› Issue (19): 154-162.doi: 10.11924/j.issn.1000-6850.casb2026-0120

Special Issue: 生物技术; 畜牧兽医

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Comprehensive Evaluation of Production Performance and Nutritional Quality of Different Oat Varieties in Alpine Region of Qinghai Province

YANG Wei1,2,3(), ZHANG Chenxu1,2,3, LIU Minjie1,2,3, MA Guosheng4, LIU Wenhui5(), BAO Gensheng5, KONG Fanmei1,2,3   

  1. 1 The College of Ecological Environment and Resources, Qinghai Minzu University, Xining 810007
    2 Qinghai Provincial Key Laboratory of High-value Utilization of Characteristic Economic Plants, Xining 810007
    3 Qinghai Provincial Biotechnology and Analytical Testing Key Laboratory, Xining 810007
    4 Haidong Taxation Bureau, Haidong, Qinghai 810600
    5 Qinghai Academy of Animal and Veterinary Sciences/Laboratory for Research and Utilization of Qinghai-Xizang Plateau Germplasm Resources, Xining 810016
  • Received:2026-01-23 Revised:2026-06-03 Online:2026-10-15 Published:2026-10-15

Abstract:

This study aims to screen optimal oat varieties adaptable to the alpine regions of Qinghai, so as to tackle long-standing problems including single forage cultivar structure and persistent imbalance between forage supply and livestock demand in the region. Using 20 oat varieties as test materials, a randomized block trial design was adopted. The introduction experiment was conducted from May to November 2024 in Ningxiu Town, Zeku County, Huangnan Prefecture. By comparing the differences in yield and nutritional indicators among various oat varieties, and combining K-means cluster analysis with the TOPSIS-multicriteria decision-making model, the optimal oat varieties suitable for local extension and cultivation were screened out. The results indicated significant differences in production performance and nutritional quality among the different oat varieties. A. sativa ‘Qingyan No.1’ had the tallest plant height (149.50 cm), A. sativa ‘Qingyan No.3’ had the largest flag leaf area (49.93 cm2), both A. sativa ‘Baiyan No.7’ and A. sativa ‘Qingyan No.3’ had the highest number of tillers (2.67 per plant), and A. sativa ‘Baiyan No.7’ achieved the highest dry hay yield (26.42 t/hm2). A. sativa ‘Qingyin No.4’ had the lowest stem-to-leaf ratio (1.59). In terms of nutritional quality, A. sativa ‘Qinghai’ had the highest crude protein content at 7.80%; A. sativa ‘Baiyan No.7’ showed the highest relative feed value at 87.84, and simultaneously the lowest fiber contents, with 36.06% acid detergent fiber and 55.96% neutral detergent fiber. Pearson correlation analysis showed significant positive correlations (P<0.05) between plant height, flag leaf length, flag leaf width, flag leaf area, and dry hay yield. Flag leaf length, flag leaf area, and stem-to-leaf ratio had extremely significant effects on crude protein content (P<0.01). Plant height and flag leaf width significantly influenced the relative feed value (P<0.05). The TOPSIS model evaluation demonstrated that A. sativa ‘Baiyan No.7’ and A. sativa ‘Qingyan No.3’ possess high-yield and high-quality potential in the alpine region, making them ideal oat varieties for cultivation in this area.

Key words: oat, alpine regions, production performance, nutritional quality, comprehensive evaluation

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