[1]付崇毅,王勇,姜伟,等.内蒙古冷凉地区草莓苗的15N吸收和分配特性[J].北方园艺,2019,43(05):32-38.[doi:10.11937/bfyy.20182958]
　FU Chongyi,WANG Yong,JIANG Wei,et al.Characteristics of 15N Absorption and Distribution of Strawberry Seedlings in Cold Region of Inner Mongolia[J].Northern Horticulture,2019,43(05):32-38.[doi:10.11937/bfyy.20182958]
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内蒙古冷凉地区草莓苗的15N吸收和分配特性

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 43卷 期数: 2019年05 页码: 32-38 栏目: 出版日期: 2019-03-15
Title:
Characteristics of 15N Absorption and Distribution of Strawberry Seedlings in Cold Region of Inner Mongolia
作者:
付崇毅1; 王勇1; 姜伟1; 杜金伟1; 王永福2
（1.内蒙古自治区农牧业科学院 蔬菜研究所，内蒙古 呼和浩特 010031；2.达拉特旗展旦召苏木农林牧水服务中心，内蒙古 鄂尔多斯 014300）
Author(s):
FU Chongyi1; WANG Yong1; JIANG Wei1; DU Jinwei1; WANG Yongfu2
(1.Vegetable Institute,Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences,Hohhot,Inner Mongolia 010031;2.Agricultural,Forestry,Animal Husbandry and Water Conservancy Service Center of Zhandanzhao Sumu,Dalat Banner,Ordos,Inner Mongolia 014300)
关键词:
草莓苗; 15N; 吸收特性; 分配特性
Keywords:
strawberry seedling; 15N; absorption characteristics; utilization characteristics
DOI:
10.11937/bfyy.20182958
文献标志码:
A
摘要:
以“红颜”草莓苗为试材，采用15N同位素示踪的方法，研究了不同等级草莓苗以及草莓苗母株和子苗间的15N吸收、分配规律，以期为内蒙古冷凉地区草莓苗氮素营养管理措施提供参考。结果表明：草莓苗地上部的15N征调能力强于根系。草莓苗对15N征调能力的强弱顺序为母株＞一级子苗＞二级子苗＞三级子苗。切断匍匐茎后，母株地上部、根系和整个植株的15N分配率显著升高，需分配到子苗中的氮素转而分配至母株本身各器官中，子苗对15N的征调能力减弱，尤其是一级子苗的干物质质量、Ndff、15N分配率和15N利用率均显著降低。氮素营养通过匍匐茎在母株和子苗间可相互转运分配，母株转运至子苗的氮素供应量高于子苗转运至母株的氮素供应量。
Abstract:
Seedling of ‘Hongyan’ strawberry was taken as material.Based on the technique of stable isotope 15N labelled urea,the characteristics of 15N absorption and distribution of different kinds of strawberry seedlings in cold region of Inner Mongolia were researched in this study,to provide reference for N nutrition management in cold region area.The results showed that,the aerial part of strawberry seedlings exhibited the stronger capacity of 15N acquisition than that of root.The capacity of 15N acquisition in different types strawberry seedlings was different,and in order,mother plants>primary seedlings>secondary seedlings>tertiary seedlings.Furthermore,we verified that the mother plants and the newly formed asexual plant (runner plants) showed different responses to stolon severing.The 15N distribution to the aerial part,root and the entire plant of mother plants all increased significantly.As well as,the nitrogen that should have been allocated to the runner plants was transferred to the organs of the mother plants themselves.The capacity of 15N acquisition became weaker in the three types of runner plants after stolon severed,especially for primary seedlings.The dry matter weight,Ndff,15N distribution and utilization of the primary seedlings all decreased significantly.In addition,nitrogen nutrition could be transported and distributed to each other through stolon between the mother plants and the runner plants,and the number of 15N of the runner plants obtained from the mother plants was more than that of the mother plants obtained from the runner plants.

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备注/Memo

第一作者简介：付崇毅（1986-），男，湖南衡阳人，博士，助理研究员，现主要从事园艺作物栽培生理及育种等研究工作。E-mail:fuchongyi@126.com.基金项目：内蒙古农牧业科学院青年创新基金资助项目（2015QNJJN01）；国家大宗蔬菜产业技术体系资助项目（CARS-23-G20）;内蒙古自治区科技计划资助项目（201702083）。收稿日期：2018-10-08

更新日期/Last Update: 2019-03-28