Effects of different opening angles of apricot and plum on fruit yield and quality
[Objective]To study the influence of'Konglongdan','Weihou'branches and branch groups on fruit yield and quality,screening the appropriate pulling angle,so as to provide guidance for the promotion of high yield cultivation technology of hybrid apricot plum.[Method]The'Konglongdan','Weihou'selected in Wensu county,Aksu,Xinjiang,were used as the research object.The different base diameter of coarse treatment of branches,branches group,determination of branches,branches group growth and mature different treatment of fruit quality and fruit yield were determined using the variance analysis of different base angle and theoretical load,branch angle and difference between fruit yield and quality.[Result]The results showed that with the increase of the base angle,the theoretical maximum fruit load of branches and branches groups increased,however,the theoretical minimum fruit load decreases;The continuous growth and base angle was the largest at 60°,Next to the base angle of 45°,Minimum at a base angle angle of 30°,The overall trend of positive correlation;Single branch yield,single fruit mass and fruit shape index of branches and branch groups were positively correlated with the pulling angle.However,the difference between the fruit external quality and the pulling angle was not obvious.Increasing the pull angle effectively increased the yield and corrected the fruit shape;The content of soluble solid substance,soluble sugar and vitamin C were positively correlated with the pulling angle.The titratable acid content was negatively correlated with the pulling angle.Increasing the angle of pulling branches improved the inner quality of the fruit.However,the differences between the treatments were not obvious.[Conclusion]In a comprehensive,when the pulling angle is 60°,it can significantly improve the yield of branches and branches group,increase the fruit size of the fruit,correct the fruit shape,and can improve the hardness of the fruit,but the effect of improving the internal quality of the fruit is not obvious.