| 光谱学与光谱分析 |
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| Comparative Investigation of Locust’s Phototactic Visual Spectrum Effect and Phototactic Response to Spectral Illumination |
| LIU Qi-hang1, ZHOU Qiang2* |
1. Henan Institute of Science and Technology, Xinxiang 453003, China
2. Engineering College of China Agricultural University, Beijing 100083, China |
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Abstract To provide theoretical support for determining locust’s phototactic spectrum, and explore locust’s phototactic mechanism stimulated by light, utilizing AvaSpec fiber-optic spectrometer system and AvaLight-DHS, the investigation of locust’s phototactic visual spectrum effect after light energy stimulated locst’s vision system was carried out and on this basis, utilizing the investigated device of locust’s phototactic response to spectral illumination, the discrepancy of locust’s phototactic response to spectral illumination was certificated comparatively. The results show that the degree of locust’s vision system absorbing the single spectrum photon of 430，545 and 610 nm is significant and there exists difference, and the behavioral response to orange, violet, green, and blue spectral light has the difference in selective sensitivity, with the intensity of response to violet light being the strongest. The degree of response to orange light is the maximum, simultaneously, locust’s vision system absorbing spectral photon energy has selective difference and requirement of illumination time, moreover, the sensitive degree of locust’s visual system to spectrum and the strength of the lighting energy, influencing locust’s phototactic response degree, and the micro-response of locust’s phototactic vision physiology, led by the photoelectric effect of locust absorbing sensitive photon and converting photon energy, is the reason for locust’s phototactic orientation response. In addition, locust’s phototactic visual spectrum effect, only when the biological photoelectric effect of locust’s visual system is stimulated by spectral illumination, can present the sensitivity of the spectral absorption effect, so, using the stronger ultraviolet stimulation characteristic of violet light, the different sensitive stimulation of orange, green, blue spectral light on locust’s phototactic vision, and combining orange, violet, green, blue spectral light field mechanism reasonably, can form the optical field trapping locusts effectively, while, the elaboration of locust’s phototactic mechanism lacks the quantification data, the comparative investigation of locust’s phototactic behavior, locust’s visual electric potential and locust’s visual spectrum effect has to be done, to improve and perfect the theory of locust’s phototactic mechanism.
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Received: 2013-09-01
Accepted: 2014-01-10
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Corresponding Authors:
ZHOU Qiang
E-mail: zq@cau.edu.cn
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