|本期目录/Table of Contents|

[1]刘杨,石春林,宣守丽,等.在不同生育期不同持续时间遮阴对冬小麦产量及其构成的影响[J].江苏农业科学,2017,45(08):62-65.
 Liu Yang,et al.Effects of shading stress with different lasting time at different growth stages on yield and its component of winter wheat[J].Jiangsu Agricultural Sciences,2017,45(08):62-65.
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在不同生育期不同持续时间遮阴对
冬小麦产量及其构成的影响
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第45卷
期数:
2017年08期
页码:
62-65
栏目:
遗传育种与耕作栽培
出版日期:
2017-04-22

文章信息/Info

Title:
Effects of shading stress with different lasting time at different growth stages on yield and its component of winter wheat
作者:
刘杨 石春林 宣守丽 魏秀芳 骆宗强 侍永乐
江苏省农业科学院农业经济与信息研究所/农业部长江下游平原农业环境重点实验室,江苏南京 210014
Author(s):
Liu Yanget al
关键词:
冬小麦遮阴产量构成不同生育期
Keywords:
-
分类号:
S512.1+10.4
DOI:
-
文献标志码:
A
摘要:
选取扬麦13作为供试小麦品种,在拔节期、孕穗期和灌浆期设置4种不同遮阴持续时间(0、5、10、 15 d)的盆栽试验,模拟不同遮阴处理对小麦产量及其构成的影响。2年的盆栽试验结果表明,在不同生育期遮阴均导致小麦产量下降,且随遮阴时间延长,不同生育期小麦产量均显著下降。下降幅度呈现为拔节期>孕穗期>灌浆期,遮阴每增加1 d,产量分别下降1.53、1.30、1.16 g/株,表明拔节期是小麦阴害胁迫的敏感期。遮阴在不同生育期对小麦产量构成的影响存在显著差异。拔节期和孕穗期遮阴主要通过降低小麦穗粒数造成产量下降;灌浆期遮阴对小麦穗数和穗粒数的影响较小,主要通过降低千粒质量造成小麦产量下降。说明遮阴造成小麦减产与小麦所处生育阶段密切相关,在评估阴害对小麦产量的影响时,应考虑小麦所处生育期对产量及其构成影响的差异。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-06-12
基金项目:国家公益性行业(农业)科研专项(编号:201203032);江苏省科技支撑计划(编号:BE2012391);江苏省农业科技自主创新资金[编号:CX(12)3055]。
作者简介:刘杨(1986—),男,江西宜春人,博士,助理研究员,从事农业气象研究。E-mail:luisyang@126.com。
通信作者:石春林,研究员,从事农业气象与作物模型研究。E-mail:shicl@jaas.ac.cn。
更新日期/Last Update: 2017-04-20