Water Management in Agriculture

Water Management in Agriculture

Determination of Irrigation Time by Measuring Stomatal Conductance in Corn Leaves

Document Type : Original Article

Authors
Abolfazl Nasseri 1
Mohammad Bagher Khorshidi 2
Ali Faramarzi 3
Zahra Mottaghifard 4
1 AREEO
2 Assistant Professor, Seed and Plant Improvement Research Department, East Azarbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Tabriz, Iran.
3 Assistant Professor, Islamic Azad University Miyaneh Branch.
4 Former MSc Student, Islamic Azad University Khoy Branch.
Abstract
Stomatal conductance is one of the important indices to assess water deficit stress in plants. To evaluate stomatal conductance in corn leaves for scheduling irrigation, an experiment was conducted at East Azarbaijan Research Center for Agriculture and Natural Resources. The experiments were as Randomly Complete Blocks with three replications and with treatments of a: full irrigation, b: deficit irrigation from stages of 6-7 leaves to the end of ripening with full irrigation at flowering stage, c: deficit irrigation from stages of 6-7 leaves to the end of ripening with full irrigation at dough stage. The stomatal dimensions were determined by copy method. Stomatal conductance was measured along a leaf with different distances, at different leaves of a plant and at before and after irrigation events by a porometer. Results showed that the stomatal along a leaf and at leaves of a plant had a variable values. So that the stomatal conductance increased with increasing distance from petiole to leaf tip and with an increasing leaves number for soil surface to the canopy. The stomatal conductance changes along the leaf and its variability in leaves numbers were modeled as Logistic functions. The temperature variability along leaf was modeled as Sinusoidal function. Results also showed that the stomatal conductance from irrigation treatments were different. The stomatal conductance from two days after irrigation were similar and averaged 0.31 ms-1. The suitable time for irrigation and its cutoff were at stomatal conductance of 0.21 and 0.33 ms-1.
Keywords
Deficit irrigation
Stomatal conductance
Stomata
Corn
Alizadeh, A. 2005. Soil, water, plant relationship. Emam Reza University, Mashad.
Augé, R.M., Toler, H.D. and Saxton, A.M. 2015. Arbuscular mycorrhizal symbiosis alters stomatal conductance of host plants more under drought than under amply watered conditions: a meta-analysis. Mycorrhiza. 25(1):13-24.
Bahrani, M.J. and Habili, N. 1991. Plant and cell physiology. Shahid Chamran University Publication. p. 581.
Bissey, L., Cobos, D. and Camphell, C. 2009. An inter-comparison of three commercial porometers. School of Earth and Environmental Science. Washington State University.
Buckley, T.N. 2017. Modeling stomatal conductance. Plant physiology. 174(2):572-582.
Düring, H. 2015. Stomatal and mesophyll conductances control CO2 transfer to chloroplasts in leaves of grapevine (Vitis vinifera L.). VITIS-Journal of Grapevine Research. 42(2):65.
Ebarahimzadeh, H. 2000. Plant Physiology. Tehran University.
Gago, J., de Menezes Daloso, D., Figueroa, C.M., Flexas, J., Fernie, A.R. and Nikoloski, Z. 2016. Relationships of leaf net photosynthesis, stomatal conductance, and mesophyll conductance to primary metabolism: a multispecies meta-analysis approach. Plant Physiology. 171(1):265-279.
Golizadeh, H., Ebadzadeh, H.R., Hatami, F., Hosseinpour, R., Mohiti, Z., Fazli, M., Rezaei, M.M., Arab, H., Kazemifard, R., Fazli, B., Abdshah, H., Sefidi, H., Rafiei, M. and Kazemian, A. 2014. Crop production features (2012-2013) in Iran. Agricultural Ministry. Islamic Republic of Iran, pp. 167 (in Farsi).
Koochaki, A., Soltani, A. and Azizi, M. 1997. Plant ecophysiology. Mashhad University Publication. p.272.
Li, F., Kang, Sh. and Zhang, J. 2004. Interactive effects of elevated CO2, nitrogen and drought on leaf area, stomatal conductance and evapotranspiration of wheat. Agricultural Water Management. 67:221-233
Mostajeran, A. 2009. Plant Ecophysiology: Relations of plant with water and soil. Binesh Azadghan publishing.
Sato, T., Abdalla, O. S., Oweis, T. and Sakuratani, T. 2006. Effect of supplemental irrigation on leaf stomatal conductance of field-grown wheat in northern Syria. Agricultural water management. 8 (5):105-112.
Sharma, D.K., Andersen, S.B., Ottosen, C.O. and Rosenqvist, E. 2015. Wheat cultivars selected for high Fv/Fm under heat stress maintain high photosynthesis, total chlorophyll, stomatal conductance, transpiration and dry matter. Physiologia Plantarum. 153(2):284-298.
Urban, J., Ingwers, M.W., McGuire, M.A. and Teskey, R.O. 2017. Increase in leaf temperature opens stomata and decouples net photosynthesis from stomatal conductance in Pinus taeda and Populus deltoides x nigra. Journal of Experimental Botany. 68(7):1757-1767.
Von Caemmerer, S. and Evans, J.R. 2015. Temperature responses of mesophyll conductance differ greatly between species. Plant, Cell & Environment. 38(4):629-637.
Wehr, R., Commane, R., Munger, J.W., McManus, J.B., Nelson, D.D., Zahniser, M.S., Saleska, S.R. and Wofsy, S.C., 2017. Dynamics of canopy stomatal conductance, transpiration, and evaporation in a temperate deciduous forest, validated by carbonyl sulfide uptake. Biogeosciences. 14(2):389-401.