10种澳洲坚果的开花结实特性及品质性状分析OA

[Objective]This study investigated the flowering and fruiting characteristics,fruit quality traits and the correlations between various fruit quality traits in macadamia in Nanning,Guangxi,aiming to provide a reference for breeding and popularization of macadamia varieties.[Method]The flowering and fruiting characteristics in 10 macadamia(Macadamia integrifolia)va-rieties were observed by using the label-hanging method.The fruit quality traits(fruit mass,seed pro-duction rate,thickness of shell,dry mass kernel,kernel rate,fat,protein,etc.)were determined,and the differences and correlations between the fruit quality traits were analyzed.[Result]The results showed that there were some differences in the flowering time of 10 macadamia varieties.The flow-ering stage of O.C,S1,GR1 and JW was from early to late March,while the flowering stage of other 6 varieties was from mid-March to early April.There were significant differences in inflorescence length,flowers per inflorescence and fruit set rate in the 10 macadamia varieties.The inflorescence length in HAES695 and JW were significantly higher than that in the other varieties,and the flowers per inflorescence in JW,HAES695,GRY4,GR9 and A16 were more than 200.The fruit set rate in GR1 was significantly higher than that in the other varieties,followed by JW and S2.There were sig-nificant differences in fruit quality traits in different varieties.The fresh fruit in GRY4 was the larg-est,but the pericarp was the thickest,and the seed production rate and total sugar content were the lowest.GR9 had the thickest shell and the lowest kernel rate,and fat,potasium,and calcium con-tents.The fresh fruit in S1 was small,the pericarp was thinnest,the seed production rate and protein content were the highest,and the zinc content was the lowest.The contents of fat and total sugar in S2 were the highest,and the dry mass kernel was the lowest.The kernel rate in HAES695 was rela-tively high,but the fresh fruit was the lowest.A4 had the best fruit appearance quality,the thinnest shell,and the highest kernel rate and quality.GR1,A16,O.C and JW had excellent comprehensive performance.Correlation analysis showed that there were significant or extremely significant correla-tions between the fruit quality traits of the 10 varieties of macadamia.[Conclusion]On the whole,there were significant differences in flowering,fruiting and quality traits in 10 varieties of macada-mia.The varieties O.C,S1,GR 1 and JW had earlier flowering stage,and GR1,JW and S2 had higher fruit set rate.The fruit appearance quality was the best in A4,followed by GR1,A16,O.C and JW.