摘要
以6年生首富3/M9T337为试材,研究不同留果量(干截面积的2、4、6、8、10、12倍留果)对树体生长发育的影响。结果表明,不同负载量对当年树高、干径的增长影响不显著;随着负载量的增大,冠径、新梢生长量减小;叶片的叶绿素含量变化为先升后降趋势,4、6倍负载量时净光合速率最高,分别达到19.63、20.16μmol/mol;平均单果重在8~12倍负载量时显著下降;可溶性固形物含量在12倍负载量时显著下降,其他处理间无显著差异。666.7 m^(2)产量随负载量增大表现先增后降趋势,10倍负载量时最高,12倍时最低,比10倍负载量时降低3.86%。从当年数据看,6~8倍干截面积负载量较为适宜。
The 6-years-old Shoufu No.3/M9T337 was used to study the effects of different fruit retention(2,4,6,8,10,12 times of trunk cross-sectional area)on tree growth and development.The results showed that the effects of different loads on the growth of tree height and trunk diameter were not significant,but the growth of crown diameter and new shoot decreased with the increase of crop load,the net photosynthetic rate was the highest at 4 and 6 times of load,reaching 19.63μmol/mol and 20.16μmol/mol.The average fruit weight per fruit decreased significantly at 8~12 times load,and the soluble solid content decreased significantly at 12 times load.The yeild of 666.7 m^(2)increased first and then decreased with the increase of crop load,with the highest at 10 times of load,and the lowest at 12 times of load,witch was 3.86%lower than that at 10 times of load.According to the data of the current year,the load of 6~8 times trunk cross-sectional area is more suitable.
作者
王来平
聂佩显
薛晓敏
董放
WANG Laiping;NIE Peixian;XUE Xiaomin;DONG Fang(Shandong Institute of Pomology,Tai’an,Shandong 271000,China)
出处
《落叶果树》
2023年第6期36-39,共4页
Deciduous Fruits
基金
国家苹果产业技术体系花果管理岗位(CARS-27)
山东省重点研发计划2022TZXD008(乡村振兴科技创新提振行动计划)
泰安市科技创新发展项目。
