Preliminary Report of the Major Traits for Macadamia cv.Disi 1
The macadamia cv.Disi 1 was selected from seedlings by Yunnan Disi Group Nut Co.,Ltd.through years of exper-imentation.It is of high yield,excellent quality,and strong stress resistance.This study investigates the major fruit traits and kernel nutrient content of Disi 1.The results indicated that the average fresh fruit yield of 5-year-old Disi 1 trees was 10.56 kg per plant,with an average fresh fruit weight of 21.6 g,an average fresh fruit shell weight of 10.9 g,and an aver-age kernel weight of 3.4 g.The seed yield rate was 50.87％,and the kernel yield rate was 39.08％.The soluble sugar con-tent of Disi 1 was 5.31％,which was 15.58％lower than that of O.C(CK).The content of crude fat was 71.45 g/100 g,2.95％higher than that of CK.The content of protein was 11.15 g/100 g,4.70％lower than that of O.C.The content of car-bohydrate was 15.95％,1.24％lower than that of O.C.In terms of mineral content,Disi 1 has potassium,iron,and zinc con-tents of 4.23 g/kg,118.00 mg/kg,and 20.07 mg/kg,respectively,which are higher than O.C,the calcium and magnesium contents are 0.95 and 1.01 g/kg,respectively,which are lower than O.C.Disi 1 has certain advantages in both phenotypic trait and fruit quality,can be used as conservation of germplasm resources,amelioration and planting cultivar.
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