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棉花学报  2012 

基于红外热图像的棉花冠层水分胁迫指数与光合特性的关系

DOI: 1002-7807(2012)04-0341-07, PP. 341-347

Keywords: 棉花,红外热图像,CWSI,光合特性,相关关系

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Abstract:

利用Fluke红外热像仪获取两个棉花品种4水平水分处理5个关键生育时期冠层的红外热图像;并在红外热图像测试的样本区内,分别测试棉花叶片净光合速率(Pn)、气孔导度(Gs)和叶面积指数(LAI)。应用图像处理技术,提取棉花冠层受光叶片温度,并将人工参考湿表面(WARS)的温度运用到Jones定义的作物水分胁迫指数CWSI的经验公式中,计算CWSI;分析棉花冠层CWSI和光合参数的生育期变化,表明棉花冠层CWSI升高,Pn、Gs和LAI相应降低;不同水分处理条件下,生育期CWSI平均值分别与Pn、Gs和LAI平均值呈极显著的负相关关系(rCWSI-Pn=-0.9182**,rCWSI-Gs=-0.8819**,rCWSI-LAI=-0.8661**,n=16),CWSI与Pn、Gs和LAI可同步反映棉花冠层水分胁迫的状况。研究结果表明,先进的红外热图像技术,提供了一种获得作物冠层表面温度的高分辨率空间信息的手段,能够消除背景干扰因素的影响,更精确的计算棉花冠层CWSI,可快速、有效、准确地监测棉花冠层的水分状况。

References

[1]  TANNER C B. Plant temperatures[J]. Agronomy Journal,1963,55: 210-211.
[2]  IDSO S B. Non-water-stressed baselines: a key to measuring and interpreting plant water stress[J]. Agricultural Meteorology,1981,24: 45-55.
[3]  JACKSON R D. Canopy temperature and crop water stress[M]. New York: Academic Press,1982: 43-85.
[4]  CLAWSON K L,Jackson R D,Pinter P J. Evaluating plant water stress with canopy temperature differences [J]. Agronomy Journal,1989,81(6): 858-863.
[5]  LEINONEN I,Hamlyn G. J. Combining thermal and visible imagery for estimating canopy temperature and identifying plant stress[J]. Journal of Experimental Botany,2004,401(55): 1423-1431.
[6]  MERON M,Tsipris J,Charitt D. Remote mapping of crop water status to assess spatial variability of crop stress[C]. // Stafford J,Werner A. Proceedings of the 4th European Conference on Precision Agriculture. Berlin,Germany: Wageningen Academic Publishers,2003: 405-410.
[7]  COHEN Y,Alchanatis V,Meron M,et al. Estimation of leaf water potential by thermal imagery and spatial analysis[J]. Journal of Experimental Botany,2005,417(56):1843-1852.
[8]  M?魻LLER M,Alchanatis V,Cohen Y,et al. Use of thermal and visible imagery for estimating crop water status of irrigated grapevine[J]. Journal of Experimental Botany,2007,58(4): 827-838.
[9]  ALCHANATIS V,Cohen Y,Cohen S,et al. Evaluation of different approaches for estimating and mapping crop water status in cotton with thermal imaging[J]. Precision Agriculture,2010,11: 27-41.
[10]  唐 薇,罗 振,温四民,等.干旱和盐胁迫对棉苗光合抑制效应的比较[J].棉花学报,2007,19(1):28- 32. TANG Wei,Luo Zhen,WEN Si-min,et al. Comparison of inhibitory effects on between drought and salinity stress[J]. Cotton Science,2007,19(1): 28-32.
[11]  罗宏海,张亚黎,张旺锋,等.新疆滴灌棉花花铃期干旱复水对叶片光合特性及产量的影响[J].作物学报,2008,34(1):171-174. LUO Hong-hai,Zhang Ya-li,Zhang Wang-feng,et al. Effects of rewatering after drought stress on photosynthesis and yield during flowering and boll-setting stage of cotton under-mulch-drip irrigation in Xinjiang[J]. Acta Agronomica Sinica,2008,34(1): 171-174.
[12]  刘瑞显,王友华,陈兵林,等.花铃期干旱胁迫下氮素水平对棉花光合作用与叶绿素荧光特性的影响[J].作物学报,2008,34(4): 675-683. LIU Rui-xian,Wang You-hua,Chen Bing-lin,et al. Effects of nitrogen levels on photosynthesis and chlorophyll fluores-cence characteristics under drought stress in cotton flowering and boll- forming stage[J]. Acta Agronomica Sinica,2008,34(4): 675683.
[13]  JONES H G. Plants and microclimate: A quantitative approach to environmental plant physiology[M]. London: Cambridge University Press,1992.
[14]  IRMAK S,Dorota Z,Ruhi B. Deterrnination of crop water stress index for irrigation timing and yield estimation of corn[J]. Agronomy Journal,2000,92: 1221-1227.
[15]  FARQUHAR G D,Sharkey T D. Stomatal conductance and photosynthesis[J]. Annual Review of Plant Physiology,1982,33: 317-345.
[16]  董振国,于沪宁.农田作物层环境生态[M].北京:中国农业出版社,1995. DONG Zhen-guo,Yu Hu-ning. Farmland crop layer ecological environment[M]. Beijing: China Agriculture Press,1995.
[17]  JONES H G. Irrigation scheduling: advantages and pitfalls of plant-based methods[J]. Journal of Experimental Botany,2004,55:2427-2436.
[18]  段爱旺.冠层温度在农田水管理中的应用及其相应的测定仪器[J].灌溉排水,1995,14(4):53-55. DUAN Ai-wang. Canopy temperature in farmland water management applications and its corresponding measurement instruments[J]. Journal of Irrigation and Drai- nage, 1995,14(4): 53-55.
[19]  蔡红涛,汤一卒,刁品春,等.棉花花铃期土壤持续干旱胁迫对产量形成的调节效应[J].棉花学报,2008, 20(4):300-305. CAI Hong-tao,Tang Yi-zu,Diao Pin-chun,et al. Regulating effect of soil progressive drought on yield of cotton during blooming and bolling periods[J]. Cotton Science,2008,20(4): 300-305.

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