Effects of Surface Soil Temperature on Cassava Physiology under Different Water Regimes
DOI:
https://doi.org/10.14456/nujst.2019.2Keywords:
Infrared thermography, Cassava, Plant physiology, Surface soil temperatureAbstract
The effect of surface soil temperature on cassava physiological characteristics under different water regimes was studied. The aim of this research was to study the relationship between the surface soil temperature and cassava physiological characteristics under irrigated and non-irrigated conditions. The field experiment plots were conducted in Khon Kaen province. The surface soil temperatures and plant physiology during the three to five months after growing were measured using infrared thermography and Licor 6400XT, respectively. The data were then compared and correlated between different water regimes. The results showed that the surface soil temperature of the non-irrigated plot was higher than the irrigated plot. A negative correlation was observed among surface soil temperature, net photosynthesis, stomatal conductance and transpiration rate. However, the positive correlation between the surface soil temperature, the air vapor pressure deficit and the leaf temperature were detected. The critical of surface soil temperature affected to the cassava physiological characteristics was at about 30°C. When the surface soil temperature increased more than 30°C, the air vapor pressure deficit and the leaf temperature increased, while the net photosynthesis, stomata conductance and transpiration rate were gradually decreasing. Therefore, the surface soil temperature was an important factor affecting cassava physiology and growth development. Water and soil management, therefore could reduce surface soil temperature in hot season and leading to good growth development and yield increasing.
References
Department of Agronomy. (2004). Economic crops. Bangkok: Kasetsart University Press.
Department of Plant Science. (2000). Principle of crop production. Retrieved from http://natres.psu.ac.th/Department/PlantScience/510-111web/book/book%20content.htm/chapter05/Agri_05.htm
Department of Soil Science. (2005). Principle of Soil Science. Bangkok: Kasetsart University Press.
El-Sharkawy, M. A., & Cock, J. H. (1984). Water use efficiency of cassava I. Effects of air humidity and water stress on stomatal conductance and gas exchange. Crop science, 24(3), 497-502.
FAO. (2000). Impact of cassava production on the environment. Retrieved from http://www.fao.org/docrep/007/y2413e/y2413e0d.htm
Hillocks, R. J., Thresh, J. M., & Bellotti, A. C. (2002). Cassava: biology, production and utilization. New York: CABI Publishing.
Irmak, S. (2016). Impacts of extreme heat stress and increased soil temperature on plant growth and development. Retrieved from https://cropwatch.unl.edu/2016/impacts-extreme-heat-stress-and-increased-soil-temperature-plant-growth-and-development
Keating, B. A., & Evenson, J. P. (2003). Effect of soil temperature on sprouting and sprout elongation of stem cuttings of cassava (Manihot esculenta crantz.). Field Crops Research, 2, 241-251.
Lahti, M., Aphalo, P. J., Finer, L., Lehto, T., Leinonen, I., Mannerkoski, H., & Ryyppo, A. (2002). Soil temperature, gas exchange and nitrogen status of 5-year-old Norway spruce seedlings. Tree Physiology, 22(18), 1311-1316.
McMichael, B. L., & Burke, J. J. (1998). Soil temperature and root growth. Hort Science, 33(6), 947-951.
R Development Core Team. (2017). R: A language and environment for statistical computing. R foundation for Statistical Computing. Retrieved from http://www.R-project.org
Sawatdikarn, S. (2014). Industrial field crops. Bangkok: O.S. Printing House.
Techawongstien, S. (n.d.). Factors affecting plant growth and development. Retrieved from https://ag.kku.ac.th/suntec/134101/134101%20Factors%20affecting%20G-D%20(note).pdf
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