植物营养与肥料学报2010,16(3)：575-583 Plant Nutrition and Fertilizer Science
超高产栽培条件下冬小麦对锰的
吸收、积累和分配
党红凯，李瑞奇，孙亚辉，张馨文，孟建，刘红彬，李雁鸣”
(河北农业大学农学院，河北保定071001）
摘要：20042006年冬小麦生长期间，通过田间取样研究了超高产（≥9000kg/hm）载培条件下冬小麦对锰的吸收、积累和分配特点。结果表明，地上部不同器官的含锰量为11.5~137.7mg/kg(干重)。叶片的含锰量在生育期间始终最高，开花后穗部和子粒的含锰量也较高。小麦各器官对锰的积累量，生育前期以叶片中最高，生育后期以子
冬前、开花期和成熟期对锰的累进吸收百分率分别约为12%、80%和100%。小麦吸收的锰在孕穗期前主要分配在叶片中，达50%以上；成熟期锰在整个穗部（颖尧和子粒)的分配达50%以上。全生育期小麦对锰的阶段吸收量和日吸收量均为双峰曲线，第一个峰在冬前，第二个蜂在起身到开花期。说明冬前和生育中期是超高产冬小麦吸
收锰的关键阶段，鹿通过播种前浸、拌种与生育中期叶面喷施相结合，保证关键吸收阶段充足的链供应。关键调：超高产；冬小麦；锰：吸收；积累：分配
中图分类号：S512.1*1；S143.7
文献标识码：A
文章编号：1008505X(2010)03-0575-09
Absorption,accumulationanddistributionofmanganeseinwinterwheat
cultivatedundersuper-high-yieldingconditions
DANC Hong-kai, LI Rui-qi, SUN Ya-hui, ZHANG Xin-wen, MENG Jian, LIU Hong-bin, LI Yan-ming
(College of Agronomy, Agriculrural Unipersity of Hebei,Baoding 07100I,China）
Abstract: In order to clarify the characteristics of manganese (Mn) absorption, accumulation and distribution in winter wheat cultivated under super-high-yielding ( ≥ 9000 kg/ha) conditions, a field experiment was conducted in Gaocheng County, Hebei Province during 20042006. Six winter wheat cultivars, SM14, SM12, JF703 and SX828 during 2004-2005, and TM1, SM12, SX531 and SX828 during 20052006, were used as experimental materials. The growing area for each cultivar was 1 hectare, divided into three subplots of 3333 m’ as three replications. Plant samples were collected from the plots at each growing stage for Mn concentration determination in laboratory. The main results showed that, the concentrations of Mn in various above-ground organs of wheat ranged from 11.5 to 137.7 mg/kg. The concentration of Mn in leaf blades was always the highest among all organs during the growing period, with the order of leaf blade ≥ leaf sheath > stem > spike from pre-winter to the booting stage, while the order of leaf blade > spike≥ grain > leaf sheath stem from the anthesis to maturity stages. Among all above-ground organs, the highest accumulation amounts of Mn were in leaf blades during early growing period, but in grains during late period. The accumulation amounts of Mn in the whole plants of all cultivars were increased with growing process, and reached to the maximum values 865.51350.0 g/ha during ten days after anthesis to maturity. The accumulative percentages of Mn by wheat plants were about 12%, 80%, and 100% of the total accumulation at pre-winter, anthesis and maturity respectively. During the pre-booting pe-riod, the Mn absorbed by wheat plants was mainly distributed in leaf blades and sheaths, especially in blades, where the distribution percentage was higher than 50%. At maturity, however, the distribution percentage of Mn in spikes was
收稿日期：200907-13
接受日期：200910-22
基金项目：国家"粮食丰产科技工程"河北省课题（2006BAD02A08.2004BA520A07)；国家小麦产业技术体系建设专项资金资助。作者简介：党红凯（1979-），男，阿北省巨鹿县人，博士研究生，主要从事作物赖培生理研究。
通讯作者Tel：03127528117，E-mail;mxzst@hebu.edu.cn，liym315@126.com
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