基于枯萎病抗性及果实产量和品质特性的甜瓜砧木综合评价OA

To screen excellent rootstocks suitable for muskmelon cultivation in sandy soil under greenhouse conditions in Xinjiang,five rootstock cultivars(Shenghezhengongfu,Jinjiazhen,Jingxinzhen 2,Jingxinzhen 9 and Zhenmei F1)were evaluated for Fusarium wilt resistance using the root-dipping inoculation method,with self-rooted Xizhoumi 25 seedlings serving as the control.After grafting,fruit traits and quality parameters were measured,and a comprehensive evaluation was conducted using the membership function analysis.Resistance identification showed that only Jingxinzhen 2 exhibit-ed moderate resistance to Fusarium wilt,while the other four rootstocks were susceptible.All grafting treatments signifi-cantly increased the average single fruit mass compared with the control,with no significant difference observed among the five rootstocks.In terms of fruit quality,grafting significantly enhanced the soluble solids content and soluble sugar content.Notably,Shenghezhengongfu exhibited the best performance in improving soluble solids content,soluble sugar content and vitamin C content.The membership function analysis revealed that Jingxinzhen 9 and Shenghezhengongfu achieved the highest comprehensive scores in terms of yield and fruit quality.In conclusion,grafting technology demon-strates dual advantages in both yield increase and quality improvement for muskmelon production in greenhouse condi-tions on sandy soil in southern Xinjiang.Jingxinzhen 9 and Shenghezhengongfu are identified as the optimal rootstocks for grafting cultivation of Xizhoumi 25,capable of simultaneously achieving high yield and superior quality.In areas with high Fusarium wilt incidence,the moderately resistant rootstock Jingxinzhen 2 can be used as a supplementary option to ensure stable yield.This study provides a scientific basis for rootstock selection in muskmelon grafting cultivation in Xin-jiang.