| SO2及酸雨胁迫对不同时期冬小麦叶绿素含量的影响 |
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| 引用本文： | 王梓廷,王 艳,宋 洪,邓志伟,廖允成.SO2及酸雨胁迫对不同时期冬小麦叶绿素含量的影响[J].西北农业学报,2012,21(4):131-136. |
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| 作者姓名： | 王梓廷 王 艳 宋 洪 邓志伟 廖允成 |
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| 作者单位： | 西北农林科技大学农学院,陕西杨凌,712100 |
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| 基金项目： | 大学生科技创新实验基金 |
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| 摘 要： | 采用开顶式熏气装置和模拟酸雨分别对盆栽小麦进行熏气和酸雨胁迫试验,在相同质量浓度下,研究不同熏气时间(0、30、60、90、120min)、不同时期(抽穗期、扬花期、灌浆期)和不同酸雨pH(1.5、2.5、3.5、4.5、5.6)对叶绿素a、b及总含量的变化影响。结果表明,在SO2熏气处理下,叶绿素a、b含量及总含量都受到影响,降幅都较大,其中叶绿素b较容易受到影响;扬花期小麦受影响最小,抽穗期最大。在酸雨胁迫条件下,叶绿素a、b含量及总含量都受到影响,其中叶绿素a较易受到影响;扬花期小麦受影响最小,抽穗期最大。
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| 关 键 词： | 冬小麦 SO2 酸雨 叶绿素含量 |
Chlorophyll Content Changes of Winter Wheat in Different Periods under Conditions of Smoked SO2 and Acid Rain Stress |
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| WANG Ziting,WANG Yan,SONG Hong,Deng Zhiwei and LIAO Yuncheng.Chlorophyll Content Changes of Winter Wheat in Different Periods under Conditions of Smoked SO2 and Acid Rain Stress[J].Acta Agriculturae Boreali-occidentalis Sinica,2012,21(4):131-136. |
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| Authors: | WANG Ziting WANG Yan SONG Hong Deng Zhiwei and LIAO Yuncheng |
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| Institution: | (College of Agronomy,Northwest A&F University,Yangling Shaanxi 712100,China) |
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| Abstract: | The potted wheat was tested by smoked SO2 gas in Open-Top chamber and by acid rain stress under the condition of acid rain simulation respectively.The contents of Chl-a,Chl-b and total Chlorophyll were measured under the same smoked SO2 air concentration,different smoked air time(0,30,60,90 and 120 min),different period(heading stage,flowering stage,milk stage) and different pH value of acid rain(pH 1.5,2.5,3.5,4.5 and 5.6).The results showed that in the sulfur dioxide gas treatments,the contents of Chl-a,Chl-b and total Chlorophyll dropped greatly,moreover,Chl-b content of wheat was the most easily affected.The smallest effect was detected at flowering stage and the most effect at heading stage.In the treatments of acid rain simulation,the contents of Chl-a,Chl-b and total Chlorophyll were also affected,but Chl-a content dropped mostly.The extremes were also detected at heading stage and flowering stage of wheat. |
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| Keywords: | Winter wheat Sulfur dioxide Acid rain Chlorophyll content |
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