ZHAO Mingxin,MA Mingze,CAO Sufang,et al.Comprehensive Evaluation of Growth Characteristics and Tree Shape of ‘Zaosu’ Pear Trees in Northwest China[J].Northern Horticulture,2025,(9):72-78.[doi:10.11937/bfyy.20244228]
西北地区“早酥”梨树体生长特性及树形综合评价
- Title:
- Comprehensive Evaluation of Growth Characteristics and Tree Shape of ‘Zaosu’ Pear Trees in Northwest China
- 文章编号:
- 1001-0009(2025)09-0072-07
- Keywords:
- Northwest China; ‘Zaosu’ pear; tree shape; comprehensive evaluation
- 分类号:
- S 661.2
- 文献标志码:
- A
- 摘要:
- 以西北干旱地区“早酥”梨为试材,采用主成分分析法,研究了不同树形在轻简化栽培体系中的适应性和效果,以期为提高梨树栽培技术水平提供参考依据。结果表明:双臂形主枝数量达到27条,在5种树形中最多,新梢长度则纺锤形最长,为63.3 cm,双臂形总果枝数最多,达到689.3条,667 m2产量为3 297 kg,同样在5种树形中最高,667 m2用工数合计为5.3个,与单臂形每667 m2工数相同,且在5种树形中为最少。主成分分析发现,5种树形综合得分由高到低依次为双臂形、纺锤形、Y形、单臂形、主干形,分别为0.707、0.433、-0.114、-0.306、-0.720。因此,双臂形树形可在西北干旱地区作为轻简化栽培树形推广应用,可进一步提高果园经济效益。
- Abstract:
- Taking ‘Zaosu’ pear in the arid region of northwest China as the test materials,the adaptability and effect of different tree shapes in the light simplified cultivation system were investigated by using principal component analysis,in order to provide reference for improving the cultivation technology level of pear trees.The results showed that,the number of main branches of double-armed shape reached 27,the most in five tree shapes,the length of new shoots was the longest in spindle shape,63.3 cm,the number of total fruiting branches of double-armed shape was the most,reaching 689.3,the yield was 3 297 kg per 667 m2,also the highest in five tree shapes,the number of laborers per 667 m2 was 5.3,the same as the number of laborers per 667 m2 of singlearmed shape,and the least in five tree shapes.Principal component analysis revealed that the composite scores of the five tree shapes were 0.707,0.433,-0.114,-0.306,-0.720 for doublearmed,fusiform,Y-shape,singlearmed,and trunk shape,respectively,in descending order,so the doublearmed shape can be popularized and applied as a light and simplified cultivation tree shape in arid northwestern regions,which can further improve the economic benefits of orchards.
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备注/Memo
第一作者简介:赵明新(1985-),男,博士,副研究员,现主要从事果树栽培生理等研究工作。E-mail:zmx850312@163.com.责任作者:李红旭(1973-),男,本科,研究员,现主要从事果树栽培及育种等研究工作。E-mail:lihongxu@gsagr.cn.基金项目:国家现代农业产业技术体系资助项目(CARS-28-47);甘肃省科技重大专项计划资助项目(23ZDNA001);甘肃省农业科学院区域协同创新资助项目(2024GAAS06)。收稿日期:2024-10-29