|Table of Contents|

Characteristics of 15N Absorption and Distribution of Strawberry Seedlings in Cold Region of Inner Mongolia

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年05
Page:
32-38
Research Field:
Publishing date:

Info

Title:
Characteristics of 15N Absorption and Distribution of Strawberry Seedlings in Cold Region of Inner Mongolia
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)
Keywords:
strawberry seedling; 15N; absorption characteristics; utilization characteristics
PACS:
-
DOI:
10.11937/bfyy.20182958
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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Last Update: 2019-03-28