不同砧木嫁接对设施小果型西瓜生长和果实品质的影响OA

This study aimed to select superior rootstocks for grafting mini-watermelon(Citrullus lanatus L.)cultivar Sux-iaobao 2K-1 under protected cultivation.Field experiments were conducted in spring(March-June)and autumn(July-October)of 2024 in plastic greenhouse at the Watermelon Experiment Station of Northwest A&F University in Pucheng county,Shaanxi province.A total of 16 treatments were arranged in a randomized complete block design with three repli-cations,including 12 experimental rootstock-scion combinations,two local conventional rootstocks(CK),non-grafted seedlings(blank CK),and self-grafted seedlings(grafting CK).Grafting survival rate,plant growth,single fruit mass,and fruit quality parameters were evaluated.Fruit internal quality was comprehensively assessed using the membership func-tion method.The results showed that all rootstocks exhibited high grafting compatibility with survival rates above 90%,and combinations 2K/J2,2K/J4,and 2K/S7 reached 100%.The single fruit mass of 2K/J2,2K/S7,and 2K/JF was signifi-cantly higher than that of non-grafted control in both seasons,with an increase of 32%-36%.The top three combinations in terms of fruit quality were 2K/T1,2K/J4,and 2K/J2,all outperforming local conventional rootstocks.In conclusion,J2(Jingxinzhen No.2),J4(Jingxinzhen No.4),and T1(wild watermelon TC)are recommended as excellent rootstocks for grafting Suxiaobao 2K-1 in protected cultivation,supporting local promotion and application.