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园艺学报 ›› 2024, Vol. 51 ›› Issue (8): 1868-1880.doi: 10.16420/j.issn.0513-353x.2023-0579

• 栽培·生理生化 • 上一篇    下一篇

‘烟富3’苹果不同砧木嫁接对其15N–尿素吸收利用的影响

李旭娇1, 吕齐3, 姚东东1, 赵丰云1, 王小非2,*(), 于坤1,*()   

  1. 1 石河子大学农学院/新疆生产建设兵团特色果蔬栽培生理与种质资源利用兵团重点实验室,新疆石河子 832000
    2 山东农业大学园艺科学与工程学院,作物生物学国家重点试验室,山东果蔬优质高效生产协同创新中心,山东泰安 271018
    3 新疆农业职业技术学院,新疆昌吉 831100
  • 收稿日期:2024-04-09 修回日期:2024-06-21 出版日期:2024-08-25 发布日期:2024-08-21
  • 通讯作者:
    *E-mail:
  • 基金资助:
    国家自然科学基金项目(31760550); 新疆生产建设兵团两区建设项目(2021BB023); 新疆生产建设兵团科技研究计划项目(2022DB002); 新疆生产建设兵团财政科技计划项目(2021AB003); 八师石河子市中青年科技创新骨干人才项目(CXPY201914); 八师石河子市中青年科技创新骨干人才项目(2022RC01); 兵团“强青”科技创新骨干人才计划项目(2023CB008-05); 新疆维吾尔自治区苹果产业技术体系项目(XJLGCYJSTX04-2024); 石河子大学科研计划项目(CXBJ202002); 石河子大学科研计划项目(CXFZ202016)

Effect of‘Yanfu 3’Apple Grafted with Different Rootstocks on Absorption and Utilization of 15N-urea

LI Xujiao1, LÜ Qi3, YAO Dongdong1, ZHAO Fengyun1, WANG Xiaofei2,*(), YU Kun1,*()   

  1. 1 Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization of Xinjiang Production and Construction Corps,Agricultural College,Shihezi University,Shihezi,Xinjiang 832000,China
    2 Shandong Collaborative Innovation Center for Fruit and Vegetable Production with High Quality and Efficiency,State Key Laboratory of Crop Biology,College of Horticulture Science and Engineering,Shandong Agricultural University,Tai’an,Shandong 271018,China
    3 Xinjiang Agricultural Vocational and Technical College,Changji,Xinjiang 831100,China
  • Received:2024-04-09 Revised:2024-06-21 Published:2024-08-25 Online:2024-08-21

摘要:

新疆地区土壤盐碱化严重,有机质含量少,不合适的砧木嫁接经常导致苹果树体黄化,长势衰弱。以八棱海棠(Malus micromalus Makino)、平邑甜茶(M. hupehensis Rehd.)和新疆野苹果[M. sievesii(Ledeb.)Roemer]3种砧木嫁接‘烟富3’苹果,采用15N同位素示踪技术,研究在施加穴贮砖条件下各嫁接组合生物量、根系形态(根长、根表面积、根体积)、15N吸收利用及土壤残留的差异。总体上,不同砧木的生物量为八棱海棠 > 平邑甜茶 > 新疆野苹果,根冠比则为新疆野苹果 > 平邑甜茶 > 八棱海棠,3个土层深度的根系形态均为八棱海棠 > 平邑甜茶 > 新疆野苹果;八棱海棠在叶中的Ndff值、15N分配率最大,并且植株总氮量、15N的吸收量和15N利用效率最大,而新疆野苹果在根部的Ndff值和15N分配率最大;从土壤15N的累积量来看,3种砧木在0 ~ 45 cm土层15N的累积量表现为新疆野苹果 > 平邑甜茶 > 八棱海棠。综上,3种砧木中,八棱海棠嫁接植株生长量最大,植株总氮量和植株15N利用效率最大,对新疆地区的盐碱土壤有较好的适应性。

关键词: 苹果, 砧木, 氮素吸收利用, 果树穴贮砖

Abstract:

Soils in Xinjiang are highly saline and poor in organic matter,with unsuitable rootstock grafting leading to yellowing and weakening of apple trees.‘Yanfu 3’apple grafted on Malus micromalus Makino,M. hupehensis Rehd.,and M. sievesii(Ledeb.)Roemer as test materials. The 15N isotope tracer technique was used to conduct the variations in biomass,root morphology(root length,root surface area,and root volume),15N uptake and utilisation,and soil residues among the grafting combination in using fruit tree hole storage bricks. As a whole,the biomass levels were in the order of M. micromalus Makino > M. hupehensis Rehd. > M. sievesii (Ledeb.)Roemer;the root-to-crown ratio was in the order of M. sieversii(Ledeb.)Roemer. > M. hupehensis Rehd. > M. micromalus Makino;the root morphologyof the three soil depths was in the order of M. micromalus Makino > M. hupehensis Rehd. > M. sieversii(Ledeb.)Roemer. M. micromalus Makino had the maximum Ndff and 15N partitioning in leaves,while M. sieversii(Ledeb.)Roemer had the maximum Ndff and 15N partitioning in roots. M. micromalus Makino were of maximum values in total plant N,15N uptake and 15N utilisation. In terms of soil 15N accumulation,the three rootstocks in the 0-45 cm soil layer showed the accumulation of 15N as M. sieversii(Ledeb.)Roemer > M. hupehensis Rehd. > M. micromalus Makino. In conclusion,among the three rootstocks,grafted plants of M. micromalus Makino had the greatest plant growth,greatest total plant N and plant 15N use efficiency,with less soil residue adapted to the saline soils in the Xinjiang region.

Key words: apple, rootstock, nitrogen absorption and utilization, fruit tree hole storage brick