【摘要】 为解决延安地区荞麦品种混杂、优良品种匮乏的现状，2017-2018年连续两年引进9个品种，对其物候期、生物学特性、经济性状等进行综合鉴定。结果表明:所有品种的两年生育期介于71.5～76.0 d之间，其中04-137、云甜荞2号、TQ12-08的生育期最短，仅为71.5 d，固荞1号的生育期最长，达76.0 d;蒙1308-8的单株粒重最重，为6.05 g，高于CK(平荞2号) 28.18%，千粒重仅次于固荞1号，达29.70 g，高于CK(平荞2号) 17.62%; CK(平荞2号)的异色率只有9.50%，是9个品种中最低的;云甜荞2号的株高最高，达到177.45 cm，主茎分枝数为4个，其余品种均为3个，主茎节数也最多，达19节，高于CK(平荞2号) 7节;赤甜-128的株高最低，仅为115.25 cm，比云甜荞2号低35.05%;但赤甜-128连续两年的小区平均产量最高，且显著高于CK(平荞2号)60.14%。因此，引进的9个品种均能在延安地区完成整个生育期过程，表现出较好的适应性。各品种不同的性状间存在不同程度的差异，建议在实际生产过程中应根据不同的需求选择相应的品种。更多还原

【Abstract】 To address the problems of mixed buckwheat varieties and a shortage of elite varieties in the Yan’an area,nine varieties were introduced from 2017 to 2018,and their phenological phases,biological characteristics,and economic traits were comprehensively evaluated. The results showed that the average growth period of all varieties over the two years ranged from 71. 5 to 76. 0 days; ‘04-137’,‘Yuntianqiao No. 2’,and ‘TQ12-08’had the shortest growth period,at only 71. 5 days,whereas ‘Guqiao 1’had the longest growth period,at76. 0 days． ‘Meng 1308-8’had the highest grain weight per plant,at 6. 05 g,which was 28. 18% higher than that of CK( ‘Pingqiao No. 2’). Its 1000-grain weight was second only to that of ‘Guqiao 1’,reaching 29. 70g,which was 17. 62% higher than that of CK( ‘Pingqiao No. 2 ’). The heterochromatic grain rate of CK( ‘Pingqiao No. 2’) was only 9. 50%,the lowest among all varieties． ‘Yuntianqiao No. 2’had the greatest plant height,reaching 177. 45 cm,with 4 main stem branches,whereas the other varieties had 3. The number of main stem nodes in ‘Yuntianqiao No. 2’was also the highest,reaching 19,which was 7 nodes more than that of CK( ‘Pingqiao No. 2’) ． ‘Chitian-128’had the lowest plant height,only 115. 25 cm,which was 35. 05%lower than that of ‘Yuntianqiao No. 2’; however,its average plot yield over the two years was the highest and was significantly higher than that of CK( ‘Pingqiao No. 2’) by 60. 14%. In summary,all introduced varieties can complete their growth cycle in the Yan’an area and demonstrate good adaptability. There are difference in the traits among varieties,and appropriate varieties should be selected according to production needs in practical cultivation.更多还原