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黄萎病胁迫下棉花叶片光合特性研究
  • ISSN号:1000-0593
  • 期刊名称:《光谱学与光谱分析》
  • 时间:0
  • 分类:S513.01[农业科学—作物学]
  • 作者机构:[1]新疆石河子职业技术学院水利建筑工程分院,新疆石河子832003, [2]新疆农垦科学院棉花研究所/兵团棉花工程技术研究中心,新疆石河子832003, [3]中国农业大学植物保护学院,北京100083, [4]石河子大学农学院,新疆石河子832000
  • 相关基金:新疆农垦科学院引导计划(83YYD201508);国家自然科学基金(41161068)
中文摘要:

在新疆自然生态条件下,通过人工田间调查取样,设置5个严重度水平(60—65),对样叶进行光合能力测试。随着严重度增加,叶片的净光合速率(A)、蒸腾速率(E)、气孔导度(GH2O)逐渐减小,叶片温度(LT,℃)逐渐增加,胞间CO2浓度(Ci)呈现先减小后增加的变化趋势;病害棉花叶片严重度与光合参数E、GH2O、A均呈极显著负相关(r〉-0.8),与Ci和LT呈极显著正相关(r〉0.5);病害棉叶光合参数E、GH2O、A所有处理(b1-b4)均与b0达极显著差异(P〈0.01),Ci和LT的病害处理b1和b2间未达显著性差异(P〉0.05),但与b3和b4间均达显著性差异。说明病害对叶片A的影响最大,其次是GH2O、E,再次是Ci,LT的影响最小。可见,黄萎病能够破坏棉花叶片生长能力,降低叶片光合能力。

英文摘要:

This research aimed to explore the changes of photosynthetic characteristics of cotton leafs with different stages of verticillum wilt disease. The research firstly introduced its sampling and research method, according to the paper, the sample was randomly collected from cotton fields, while it distinguished 5 stages of disease severity and tested its samples. As the results indi- cated, with the increase of the severity, the net photosynthesis rate (A), the transpiration rate (E) and the stomata conductance (GH20) were gradually decreased, the leaf temperature (LT) was successively increased, while the internal CO2 (Ci) experienced an increase before it dropped. In addition, the severity showed a highly significant negative correlation with A, E and GH2O (r 〉 - 0.8) ; while it had a highly significant positive correlation with Ci and LT. On the other hand, each of the processes (b1 -b4) of E, A and GH2O had demonstrated a highly significant difference with b0. As for Ci and LT, the disease treatment b1 and b2 showed insignificant difference (p 〉 0.05 ), yet b3 and b4 expressed a significant difference. The result indicated that the disease affected A the most, GH2O and E gradually, and casted the least influence on Ci and LT. Therefore, this research argued that Verticillum Wilt has a serious impact on cotton leaf's growing ability, and it reduced the leaf's photosynthesis capacity.

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期刊信息
  • 《光谱学与光谱分析》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国光学学会
  • 主编:高松
  • 地址:北京海淀区魏公村学院南路76号
  • 邮编:100081
  • 邮箱:chngpxygpfx@vip.sina.com
  • 电话:010-62181070
  • 国际标准刊号:ISSN:1000-0593
  • 国内统一刊号:ISSN:11-2200/O4
  • 邮发代号:82-68
  • 获奖情况:
  • 1992年北京出版局编辑质量奖,1996年中国科协优秀科技期刊奖,1997-2000获中国科协择优支持基础性高科技学术期刊奖
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰文摘与引文数据库,美国工程索引,美国生物医学检索系统,美国科学引文索引(扩展库),英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),英国英国皇家化学学会文摘,中国北大核心期刊(2000版)
  • 被引量:40642