Distribution and accumulation of zinc and nitrogen in wheat grain pearling fractions in response to foliar zinc and soil nitrogen applications

作     者：ZHANG Pan-pan CHEN Yu-lu WANG Chen-yang MA Geng LU Jun-jie LIU Jing-bao GUO Tian-cai ZHANG Pan-pan;CHEN Yu-lu;WANG Chen-yang;MA Geng;Lü Jun-jie;LIU Jing-bao;GUO Tian-cai

作者机构：State Key Laboratory of Wheat and Maize Crop ScienceHenan Agricultural UniversityZhengzhou 450002P.R.China Cereal InstituteHenan Academy of Agricultural SciencesZhengzhou 450002P.R.China College of AgronomyHenan Agricultural UniversityZhengzhou 450002P.R.China Luoyang Academy of Agriculture and Forestry SciencesLuoyang 471023P.R.China 

出 版 物：《Journal of Integrative Agriculture》 (农业科学学报（英文版）)

年 卷 期：2021年第20卷第12期

页      面：3277-3288页

核心收录：

学科分类：09[农学] 0901[农学-作物学] 

基　　金：the National Key Research and Development Program of China(2018YFD0300707 and 2016YFD0300400) the Modern Wheat Industrial Technology System of Henan Province,China(S2010-01-G07) 

主　　题：foliar Zn application soil N application winter wheat nutrient distribution N remobilization 

摘      要：Increasing zinc(Zn)concentration in wheat grain is important to minimize human dietary Zn *** study aimed to investigate the effect of foliar Zn and soil nitrogen(N)applications on the accumulation and distribution of N and Zn in grain pearling fractions,N remobilization,and the relationships between nutrient concentration in the vegetative tissues and grain or its fractions in two cropping years in the North China *** results showed a progressive decrease in N and Zn concentrations from the outer to the inner parts of grain,with most of the accumulation in the core *** Zn application significantly increased N concentration in the pericarp,and soil N application increased N concentration in each grain *** treatments significantly increased core endosperm Zn *** Zn had no effect on grain N and Zn *** N application made N concentrated in the aleurone,promoted Zn translocation to the core endosperm and also increased N remobilization and its efficiency from the shoot to the grain,but no improved contribution to grain was found.N concentration in grain and its fractions were positively correlated with N in vegetative organs at anthesis and maturity,while positive correlations were obtained between N concentration in the pericarp and progressive central area of the endosperm and Zn concentration in the core ***,foliar Zn and soil N applications effectively increased yield and N and Zn concentrations in the wheat grain,particularly in the endosperm,and could be promising strategies to address Zn deficiency.