【摘要】 为了筛选适宜在武陵山区推广栽培的高产、稳产、优质、抗逆性强、出菇时间短的羊肚菌种质资源，统计了18个羊肚菌品种的13个主要农艺性状，采用灰色关联度法(grey relational anlysis, GRA)和逼近理想解排序(DTOPSIS)法相结合，进行综合评价比较和分析各个品种的差异，为羊肚菌新品种的选育提供新的综合评价方法。结果表明，在赋予相同权重的情况下，灰色关联度法和DTOPSIS法的结果存在差异。灰色关联度分析结果显示，羊肚菌试验品种与理想品种之间的加权关联系数(R_i′)最大差异率为41.64%,等权关联系数(R_i)差异率为34.73%,R_i′大于R_i,选用加权关联系数(R_i′)对品种优劣排序更合理；DTOPSIS法分析结果显示，试验品种与理想品种的相对接近度C_i值最大差异率为68.30%,C_i值的最大差异率大于灰色关联度分析加权关联系数R_i′值最大差异率，因此DTOPSIS法更能体现羊肚菌品种间的差异和优劣，比灰色关联度分析法更适用于羊肚菌品种的综合评价。经DTOPSIS法综合评价，七妹羊肚菌(Morchella eximia)19号、1号、18号、15号和六妹羊肚菌(Morchellasextelata)21号品种适宜在在武陵山区栽培，可进一步试验示范推广，为武陵山区羊肚菌的选育奠定基础。更多还原

【Abstract】 In order to screen high-yielding, stable, high-quality, stress-resistant, and early-fruiting Morchella spp. germplasm resources suitable for cultivation and promotion in Wuling Mountain area, 13 key agronomic traits of 18 Morchella spp. varieties were statistically analyzed. Two comprehensive evaluation methods, the Grey Relational Analysis(GRA) and the Distance to the Ideal Solution method based on Technique for Order Preference by Similarity to an Ideal Solution(DTOPSIS) were combined to compare and analyze the differences among the varieties, aiming to provide a new comprehensive evaluation approach for the selection and breeding of new Morchella spp. varieties. The results indicated that under equal weight settings, the evaluation outcomes of the GRA and DTOPSIS methods were different. The GRA results showed that the maximum difference rate of the weighted grey relational coefficient(R_i′) between tested varieties and the ideal variety was 41.64%,while the difference rate of the equally weighted coefficient(R_i) was 34.73%. Since R_i′ was greater than R_i,using the weighted coefficient(R_i′) for variety ranking proved more reasonable. The DTOPSIS results revealed that the maximum difference rate in relative closeness(C_i) between tested varieties and the ideal variety was 68.30%. As this difference rate was greater than that of R_i′,DTOPSIS was better able to reflect differences and merits among Morchella spp. varieties, making it more suitable for comprehensive evaluation of Morchella spp. germplasm.Based on the comprehensive evaluation using the DTOPSIS method, the varieties No.19,No.1,No.18,No.15 of Morchella eximia,and Morchella sextelata No.21 were found to be suitable for cultivation in the Wuling Mountain area. These varieties can be further tested, demonstrated and promoted, thereby laying a foundation for the selection and breeding of Morchella spp. in the Wuling Mountain area.更多还原