Influence of ecological factors on pepper blade thickness

Lin Guo; Tian-tai Guo; Bo Fang; Dong-sheng Li

doi:10.1117/12.885972

28 December 2010 Influence of ecological factors on pepper blade thickness

Lin Guo, Tian-tai Guo, Bo Fang, Dong-sheng Li

Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 754410 (2010) https://doi.org/10.1117/12.885972
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China

Abstract

This paper discusses the influence of ambient temperature and relative air humidity on pepper blade thickness, and establishes theoretical model of these two ecological factors with the changes of pepper blade thickness, on the basis of experiment data of pepper blade thickness, ambient temperature and relative air humidity in 24 hours. The vivo measurement of plant blade thickness with high accuracy is realized using a self-developed precision plant blade monitor instrument. The correlation of the influence of ambient temperature and relative air humidity with the changes of pepper blade thickness is established, analyzed and modeled by controlling other ambient variables. Test results show that the changes of pepper blade thickness and ambient temperature vary inversely, and there is a significant negative correlation between them. However, the change of blade thickness and air humidity show the same trend, and there is a significant positive correlation between them. According to the correlation analysis, the influence model of ambient temperature and relative air humidity with pepper blade thickness is established using multiple linear regression method. Significant test results show that in the period of 0:00A.M.~7:00P.M., pepper blade thickness was significantly influenced by ambient temperature and relative air humidity, while during 7:00P.M.~0:00A.M., the influence was weaker, probably due to the inertia of environment factors and plant's physiological activities. The model of pepper blade thickness can be used to guide the establishment of water-saving irrigation system controlled by blade thickness monitoring.

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Lin Guo, Tian-tai Guo, Bo Fang, and Dong-sheng Li "Influence of ecological factors on pepper blade thickness", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 754410 (28 December 2010); https://doi.org/10.1117/12.885972

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KEYWORDS

Humidity

Surface plasmons

Temperature metrology

Data modeling

Control systems

Statistical modeling

Atmospheric modeling

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