[1]徐莹莹,刘玉涛,高 盼,等.吐丝期干旱胁迫对玉米生长及产量的影响[J].黑龙江农业科学,2017,(04):16-20.[doi:10.11942/j.issn10022767.2017.04.0016]
　XU Yingying,LIU Yutao,GAO Pan,et al.Effects of Drought Stress on Growth and Yield of Maize During Silking Period[J].HEILONGJIANG AGRICULTURAL SCIENCES,2017,(04):16-20.[doi:10.11942/j.issn10022767.2017.04.0016]
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吐丝期干旱胁迫对玉米生长及产量的影响

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2017年04期 页码: 16-20 栏目: 出版日期: 2017-04-10
Title:
Effects of Drought Stress on Growth and Yield of Maize During Silking Period
文章编号:
10022767（2017）04001605
作者:
徐莹莹; 刘玉涛; 高 盼; 王宇先; 杨慧莹; 王俊河; 樊景胜
黑龙江省农业科学院 齐齐哈尔分院，黑龙江 齐齐哈尔 161006
Author(s):
XU Yingying; LIU Yutao; GAO Pan; WANG Yuxian; YANG Huiying; WANG Junhe; FAN Jingsheng
Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences，Qiqihar,Heilongjiang 161006
关键词:
玉米; 吐丝期; 干旱胁迫; 产量
Keywords:
maize;  silking period;  droughtstress;  yield
分类号:
S513
DOI:
10.11942/j.issn10022767.2017.04.0016
文献标志码:
A
摘要:
为促进玉米抗旱栽培，以先玉335为材料，采用大田小区对比试验，开展吐丝期干旱胁迫对玉米生长及产量影响的研究。通过对土壤含水量、玉米叶片形态和生理、果穗性状及产量等指标的测定，分析干旱胁迫对玉米生长及产量的影响。结果表明：土层0~20 cm、20~40 cm和40~60 cm，不同处理的土壤含水量显著差异（P<0.05），无干旱胁迫（T2）>干旱胁迫5 d（T3）>干旱胁迫10 d（T4）>干旱胁迫15 d（T5）>自然生长（T1）。叶片卷曲度T1>T5>T4>T3>T2。叶片保绿性、相对含水量、SPAD值均为T2>T3>T4>T5>T1。T2叶片相对含水量分别比T1、T3、T4、T5高55.38%、5.31%、24.17%和37.91%，T2的SPAD值分别比T1、T3、T4、T5高38.70%、9.45%、18.97%和27.10%。干旱胁迫对玉米性状及产量具有影响，干旱导致玉米穗长缩短，秃尖变长，穗粗、行粒数减少，产量下降（P<0.05），T2产量分别比T1、T3、T4和T5高50.25%、8.94%、15.06%和28.12%。
Abstract:
In order to promote the droughtresistant cultivation fo maize,taking Xianyu 335 as material,through the field plot experiment,effects of drought stress on growth and yield of maize during silking peirod were studied.Through the determination of soil water content,leaf morphology and physiology,ear traits and yield index,effect of drought stress on growth and yield of maize were analyzed.The results showed that 0~20 cm,20~40 cm and 40~60 cm of soil,water content of different treatments were significantly different(P<0.05),no drought stress (T2)>drought stress last 5 days (T3)>drought stress last 10 days (T4)>drought stress last 15 days (T5)>natural growth (T1).Leaf curl was T1>T5>T4>T3>T2.Leaf staygreen trait,relative water content and SPAD value were T2>T3>T4>T5>T1.Leaf relative water content of T2 was 55.38%,5.31%,24.17% and 37.91% higher than T1,T3,T4 and T5,respectively.SPAD vaule of T2 was 38.70%,9.45%,18.97%和27.10% higher than T1,T3,T4 and T5,respectively.Drought stress had an influence on characters and yield of corn,leading to ear length shorter,bald length longer,ear diameter and grains per row decreased and yield decreased significantly (P<0.05).Yield of T2 was 50.25%,8.94%,15.06% and 28.12% higher than T1,T3,T4 and T5,respectively.

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备注/Memo

收稿日期：2017.02.16基金项目：公益性行业（农业）科研专项经费资助项目（20130312521，20150311602）；齐齐哈尔市科技局农业攻关资助项目（NYGG201409）；国家现代农业技术体系建设资助项目（CARS02）第一作者简介：徐莹莹（1989-），女，黑龙江省齐齐哈尔市人，硕士，研究实习员，从事作物栽培和微生物研究。Email: ghdetongzhuo@163.com。通讯作者：刘玉涛（1968-），男，黑龙江省尚志市人，学士，副研究员，从事作物栽培和旱作节水研究。Email: 00681107@163.com。

更新日期/Last Update: 2017-08-06