冬枣果实发育期不同类型枝条叶施<sup>15</sup>N-尿素的分配特性

doi:10.3321/j.issn:1000-7091.2006.05.004

华北农学报 ›› 2006, Vol. 21 ›› Issue (5): 13-16. doi: 10.3321/j.issn:1000-7091.2006.05.004

冬枣果实发育期不同类型枝条叶施¹⁵N-尿素的分配特性

赵登超¹, 姜远茂¹, 彭福田¹, 何乃波², 张序¹, 隋静¹

1. 山东农业大学园艺科学与工程学院, 山东泰安 271018;
2. 山东省科学技术厅, 山东济南 250011

收稿日期:2006-07-21 出版日期:2006-10-28
通讯作者: 姜远茂
作者简介:赵登超（1980- ），男，山东聊城人，硕士，主要从事果树营养生理研究工作，现工作单位山东省林业科学研究院。
基金资助:
农业部“948”计划项目资助（2003_Z53）

Characteristics of Distribution of Different Types of Shoots Foliar ¹⁵N-urea Sprays During Fruit Development Period in Winter Jujube Trees

ZHAO Deng-chao¹, JIANG Yuan-mao¹, PENG Fu-tian¹, HE Nai-bo², ZHANG Xu¹, SUI Jing¹

1. College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, China;
2. Department of Science and Technology of Shandong Province, Jinan 250011, China

Received:2006-07-21 Published:2006-10-28

摘要/Abstract

摘要： 大田条件下，以6年生冬枣/金丝小枣为试材，研究了冬枣果实发育后期不同类型枝条叶施¹⁵N_尿素7 d后¹⁵N的吸收与分配特性。结果表明：处理叶片中的Ndff%均高于其他器官，且果实膨大期处理叶片高于果实硬核期。不同类型枝条对叶施¹⁵N_尿素的分配运转特性不同，坐果枣吊叶片主要供给果实生长；顶部营养枝叶片吸收¹⁵N在其附近器官中的分配势较高；中部营养枝叶片的下部器官¹⁵N分配势高于其上部相同的器官，果实膨大期顶部营养枝叶片处理¹⁵N最远可运输到根系。不同施¹⁵N时期营养枝叶片对¹⁵N分配利用不同，果实硬核期吸收¹⁵N在营养器官（叶片和枣吊）中的分配势较高，而果实膨大期¹⁵N在贮藏器官（枝干）中的分配势较高。

关键词: 冬枣, 果实发育期, 叶片, ¹⁵N-尿素, 分配

Abstract: A field experiment on 6-year-old Jujube trees was carried out to study assimilation and distribution of nitrogen from urea applied to different type of shoots during fruit development period.The results showed that higher Ndff% was detected in the treated leaves than in other organs 7 d after application,and Ndff% in leaves treated during fruit rapid-swell stage was higher than that treated during fruit core-hardening stage.Bearing deciduous spur foliar spray contributed most to fruit N.Neonatal branch leaves applied ¹⁵N-urea,however,was detected with higher Ndff% in organs to which the treated leaves were attached.Urea-N could exported to below organs.¹⁵N could be detected in fine roots after top neonatal branches leaves treated during fruit rapid-swell stage.The distribution of ¹⁵N-urea of neonatal branches foliar was affected by fertilization time.¹⁵N applied during core-hardening stage of fruit exported more to vegetative organs(leaves and deciduous spur),but during rapid-swell stage more ¹⁵N was distributed to storage organs(branches).

Key words: Winter Jujube, Fruit development period, Leaves, ¹⁵N_urea, Distribution

中图分类号:

S665.1

赵登超, 姜远茂, 彭福田, 何乃波, 张序, 隋静. 冬枣果实发育期不同类型枝条叶施¹⁵N-尿素的分配特性[J]. 华北农学报, 2006, 21(5): 13-16. doi: 10.3321/j.issn:1000-7091.2006.05.004.

ZHAO Deng-chao, JIANG Yuan-mao, PENG Fu-tian, HE Nai-bo, ZHANG Xu, SUI Jing. Characteristics of Distribution of Different Types of Shoots Foliar ¹⁵N-urea Sprays During Fruit Development Period in Winter Jujube Trees[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(5): 13-16. doi: 10.3321/j.issn:1000-7091.2006.05.004.

http://www.hbnxb.net/CN/Y2006/V21/I5/13

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冬枣果实发育期不同类型枝条叶施¹⁵N-尿素的分配特性

Characteristics of Distribution of Different Types of Shoots Foliar ¹⁵N-urea Sprays During Fruit Development Period in Winter Jujube Trees

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冬枣果实发育期不同类型枝条叶施15N-尿素的分配特性

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冬枣果实发育期不同类型枝条叶施¹⁵N-尿素的分配特性

Characteristics of Distribution of Different Types of Shoots Foliar ¹⁵N-urea Sprays During Fruit Development Period in Winter Jujube Trees