Effects of different pumpkin rootstocks on the growth,yield and fruit quality of watermelon

CHEN Yu; BIE Zhilong; SONG Yu; MA Jie; WANG Lijun; GAO Ruijie

doi:10.16861/j.cnki.zggc.2024.0705

Abstract：To screen out suitable pumpkin rootstock variety for grafting watermelon cultivars in the Bayannur region,11 pumpkin rootstock combinations and 2 commercial pumpkin rootstocks(CK1,CK2)were used as experimental materials,and the local watermelon variety lvbaodesert 1 was used as scion to study the effects of different pumpkin rootstocks on the survival rate of grafted watermelon seedlings,the survival rate of planting,the position of flowering and fruit setting nodes,fruit quality and yield,and the principal component analysis method was used to comprehensively evaluate the above indicators.The results showed that B1,B5,B8 and B10 had high compatibility with scion Lvbao desert 1.The fruit-setting ability of B2,B3,B4,B5 and B8 was stronger than that of the control;The yield of B2,B5,B8,B10 and B4 rootstocks was higher than that of commercial control.Except B8,the grafting of other rootstocks did not significantly change the fruit shape of watermelon.Except B4,the soluble solids content at the edge was significantly lower than that of the commercial control,there was no significant difference between the other rootstocks and the control.Through prin-cipal component analysis,two high-quality pumpkin rootstock combinations B2 and B10 were finally selected suitable for grafting watermelon in Bayannaoer area,the yield increased 24.92％,29.20％and 12.75％,16.61％higher than the com-mercial control rootstocks CK1 and CK2,respectively,and could be popularized and applied in production.