中文摘要：

以4个苦荞品种为试验材料，测定了在6个生态区下株高、主茎分枝数、主茎节数、单株粒数、单株粒重、千粒重和最终产量的差异．结果表明：苦荞株高、主茎分枝数、主茎节数、单株粒数、单株粒重、千粒重和产量的变异范围分别为：57．20～123．70cm、1．60～17．00、8．20-19．46、92。00～544．00、1．90～11．07g、10．50～32．80g和51．47～286．14kg；苦荞材料间以九江苦荞的株高显著高于其余3份苦荞材料，以威苦1号的主茎分枝数、主茎节数最高，以六盘水苦荞的单株粒数、单株粒重和千粒重显著高于其余3份苦荞材料，产量则以九江苦荞和六盘水苦荞显著高于威苦1号和成苦2号；不同生态区间苦荞的产量以威宁地区显著高于其余5个生态区．相关性分析表明苦荞的产量与千粒重、株高呈密切的正相关关系．

英文摘要：

Used 4 kinds of tartary buckwheat as experimental materials to determine the differences among the plant height, main stem branches, main stem nodes, grain number per plant, grain weight per plant thousand seed weight and final production yield. The results showed that, the plant height, main stem branches, main stem nodes, per grain number, per grain weight, thousand seed weight and final production yield of tartary buckwheat changed between 57.20 cm-123.70 cm,1.60-I7. 00,8.20-19. 46,92.00-544.00,1.90 g-11. 07 g,10.50 g-32.80 g and 51.47 kg-286.14 kg; The plant height of Jiujiang tartary buckwheat is significance differences higher than the other buckwheat. The main stem branches and main stem nodes of Weikul tartary buckwheat is significance differences higher than other buckwheat while the grain number per plant grain weight per plant and thousand seed weight of Liupanshui tartary buckwheat is significence differences higher than the other. The final production yield of Jiujiang and Liupanshui is higher than Weikul and Weiku2. Weining region＇s final production yield of tartary buckwheat is higher than the other 5 ecological regions. According to the correlation analysis, the final production yield have the positive correlation with the thousand seed weight and the plant height.