|本期目录/Table of Contents|

[1]王传凯,郭淼,杨青华.温度和光照度对春小麦幼苗生长及生化组成的影响[J].江苏农业科学,2017,45(15):69-73.
 Wang Chuankai,et al.Effects of temperature and light intensity on seedling growth and biochemical composition of spring wheat[J].Jiangsu Agricultural Sciences,2017,45(15):69-73.
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温度和光照度对春小麦幼苗生长及生化组成的影响(PDF)
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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15期
页码:
69-73
栏目:
遗传育种与耕作栽培
出版日期:
2017-08-05

文章信息/Info

Title:
Effects of temperature and light intensity on seedling growth and biochemical composition of spring wheat
作者:
王传凯1 郭淼1 杨青华2
1.南阳农业职业学院,河南南阳 473000; 2.河南农业大学,河南郑州 450000
Author(s):
Wang Chuankaiet al
关键词:
春小麦温度光照度幼苗生长生化组成
Keywords:
-
分类号:
S512.1+20.1
DOI:
-
文献标志码:
A
摘要:
采用双因素的控制性试验研究了温度(15、20、25、30 ℃)和光照度[50、100、150、200 μE/(m2·s)]以及二者的交互作用对春小麦生长和生化组成的影响。结果表明,温度、光照度及两者的交互作用对春小麦幼苗生长及生化组成均具有明显的影响。春小麦在25 ℃和30 ℃下种子萌发和幼苗生长各指标较高,随着温度的升高,达到最大生长速率所需要的光照度有上升趋势,在15 ℃和20 ℃下,较高的光照度对春小麦种子萌发和幼苗生长产生了一定抑制作用,而在20 ℃和25 ℃下,其种子萌发和幼苗生长各指标总体随光照度的增加而增加。春小麦种子浸提液电导率和MDA含量的变化趋势相一致,在相同光照度下,春小麦种子浸提液电导率和MDA含量均随着温度的升高呈上升趋势。双因子方差分析表明,温度和光照度对春小麦叶绿素a和叶绿素b含量影响极显著(P<0.01),并且叶绿素a和叶绿素b含量随着温度和光照度呈一致的变化趋势,其中光照度的影响大于温度,总体上,叶绿素a和叶绿素b含量均随着光照度的升高而显著下降,随着温度的升高而升高。春小麦碳水化合物含量随着光照度的升高而升高,而温度对碳水化合物含量影响不显著(P>0.05)。春小麦蛋白质含量随着光照度的增加而显著下降,随着温度的继续升高,蛋白质含量呈先增加后降低趋势。相关性分析表明,在同一温度和光照条件下,春小麦生长指标与MDA含量和相对电导率呈显著或极显著的负相关关系,可以推测,在温度和光照的影响下,春小麦幼苗MDA含量和相对电导率能够作为其生长的指示性指标。综合来看,光照度和温度可改变春小麦幼苗生长及生化组成,这种改变可能是春小麦为了适应环境因子改变而作出的积极的生理调节,对其生长和生存具有重要的生态意义。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2016-03-26
作者简介:王传凯(1968—),男,河南方城人,硕士,副教授,主要从事农学专业农作物生产研究。E-mail:Wang_chuankai@126.com。
更新日期/Last Update: 2017-08-05