Abstract：The simple winter wheat variety was conducted under the low temperature treatment at -2, -4, and -6 ℃, the canopy reflectance was measured and the red edge parameters were extracted to study the winter wheat canopy spectral characteristics effected by the low temperature stress and the hyperspectral response to the low temperature stress of winter wheat at jointing stage. The results showed that the canopy reflectance decreased in visible region and increases at near infrared band with the high intensively low temperature stress, and "green peak" was weakened and “red well” was not distinctive. Moreover, the derivate spectrum had the trend of shift to short wavelength direction with the strengthening of low temperature stress and the red edge presented the blue shift. The area of red edge and red edge amplitude exhibit increase. It indicated that the canopy spectrum of winter wheat is sensitive to the low temperature stress, and the hyperspectral technology can be used to monitor the low temperature stress of winter wheat at jointing stage.
Key words：Winter wheat;Low temperature stress;Hyperspectral;Red edge parameters
任 鹏，冯美臣*，杨武德，王 超，刘婷婷，王慧琴. 冬小麦冠层高光谱对低温胁迫的响应特征[J]. 光谱学与光谱分析, 2014, 34(09): 2490-2494.
REN Peng, FENG Mei-chen*, YANG Wu-de, WANG Chao, LIU Ting-ting, WANG Hui-qin. Response of Winter Wheat (Triticum aestivum L. ) Hyperspectral Characteristics to Low Temperature Stress. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(09): 2490-2494.
[1] Sofalian O, Mohammadi S A, Aharizad S, et al. J. Turkish Journal of Agriculture and Forestry, 2006, 30(6): 399. [2] Romanov P J. NATO Science for Peace and Security Series C: Environmental Security. Dordrecht: Springer 2011. 81. [3] FENG Meichen, YANG Wude, CAO Liangliang, et al. Agricultural Science in China, 2009, 8(9): 1053. [4] QI Ya-qin, Lü Xin, CHEN Guan-wen, et al(祁亚琴, 吕 新, 陈冠文，等). Cotton Science(棉花学报), 2011, 23(2): 167. [5] Starks P J, Zhao D, Brown M A. Grass and Forage Science, 2008, 63(2): 168. [6] Arafat S M, Aboelghar M A, Ahmed E F. Advances in Remote Sensing, 2013, 2(2): 63. [7] Vane G. Remote Sensing of Environment, 1993, 44(2): 109. [8] LI Zhang-cheng, ZHOU Qing-bo, Lü Xin, et al(李章成, 周清波, 吕 新, 等). Acta Agronomica Sinica(作物学报), 2008, 34(5): 831. [9] CHEN Bing, HAN Huan-yong, WANG Fang-yong, et al(陈 兵, 韩焕勇, 王方永, 等). Acta Agronomica Sinica(作物学报), 2013, 39(2): 319. [10] Horler D N H, Barber J, Barringer A R. International Journal of Remote Sensing, 1980, 1(2): 121. [11] Boochs F, Kupfer G. International Journal of Remote Sensing, 1990, 11(10): 1741. [12] XIE Xiao-jin, SHEN Shuang-he, LI Ying-xue, et al(谢晓金, 申双合, 李映雪，等). Transactions of the Chinese Society of Agricultural Engineering(农业工程学报), 2010, 26(3): 183. [13] Stroppiana D, Boschetti M, Brivio A P, et al. International Journal of Remote Sensing, 2009, 30(18): 4643. [14] Song Shalei, Gong Wei, Zhu Bo, et al. Journal of Photogrammetry and Remote Sensing, 2011, 66(5): 56. [15] HUANG Jing-feng, WANG Yuan, WANG Fu-min, et al(黄敬峰, 王 渊, 王福民，等). Transactions of the Chinese Society of Agriculutral Engineering(农业工程学报), 2006, 22(8): 22.
