利用回归系数法、稳定性参数法和高稳系数法 ,对中国北部高原地区新育成的 18个谷子品种 (系 )的高产稳产性进行了研究。结果表明 ,参试品种多数产量较高 ,约占 55 6 % ,但其中产量稳定性较差的占大多数 ,高产稳产的品种较少 ,仅有 95汾选 3、铁 93- 115和承谷 8号 3个 ,约占16 7% ,其余的均为低产稳产和低而不稳的类型 ,大约各占 2 2 2 %。这可能与品种性状的适应性有关 The high yield and stability of 18 newly cultivated millet varieties (lines) in the northern plateau of China were studied by regression coefficient method, stability parameter method and high stability coefficient method. The results showed that most of the tested varieties had a high yield, accounting for 55.6% of the total, but most of the yield stability was poor, while those with high and stable yield were fewer. Only 95% Fen 3, 93-115 and Chenggutan 3 of No. 8, accounting for 16.7% of the total. The remaining ones are both low-yielding and low-instability types, accounting for about 22.2% each. This may be related to the adaptability of variety traits