Introduction performance of 16 Macadamia varieties in Yingjiang of Yunnan province
[Objective]To provide reference for the adjustment of Macadamia industry variety structure and optimization of variety layout in Yingjiang,Yunnan province.[Method]The growth condition,yield and nut quality of 16 Macadamia varieties were comparatively analysed and comprehensively evaluated by membership function.[Result]13 varieties aged 11-13 years showed good condition of tree growth.The average single plant yield of fruit was the highest at HAES333 and the lowest at HAES800.Except for HAES741,HAES788,and HAES800,all other varieties which in high-yielding period had an average yield of over 10 kg per plant for fresh nut-in-shell(NIS).Except for HAES800,the average single plant yield of kernel in all varieties during their high-yielding period exceeded 2 kg.The kernel ratio of Disi 1 was significantly higher than other varieties.In the comparative analysis of nut quality,the kernel recovery rate of A4 and A16 was significantly higher than other varieties.DiSi 1 and DiSi 2 had excellent performance in NIS size,individual dried NIS and kernel mass.Nanya san hao also performed well in NIS size and individual dried NIS mass.Guire 1 had better NIS uniformity and first-class kernel rate than other varieties.The varieties with nut quality membership function value greater than 0.6 were A4,Disi 1,A16,Guire 1,Disi 2,HAES800 and O.C.The top 4 varieties in the comprehensive evaluation of yield and nut quality are Disi 1,O.C,Disi 2 and Nanya san hao.[Conclusion]In Yingjiang,the newly introduced varieties A4,A16 and Guire 1 showed excellent nut quality and had certain cultivation potential.Disi 1,Disi 2 and O.C showed excellent yield and nut quality and were suitable for cultivation in Yingjiang.
Yingjiang,YunanMacadamiayieldnut qualitymembership function analysis method