CROP WATER STRESS INDEX OF COWPEA UNDER DIFFERENT WATER AVAILABILITY LEVELS IN CASTANHAL-PA
DOI:
https://doi.org/10.1590/1983-21252022v35n322rcKeywords:
Water deficit. Canopy temperature. Vigna unguiculate.Abstract
Cowpea is a crop of great socioeconomic relevance for the populations of the North and Northeast of the country, and its low yield is commonly related to environmental stresses, especially water. The objective of this study was to evaluate the water stress index of cowpea, cultivar BR3 - Tracuateua, subjected to different irrigation levels (100, 50, 25 and 0% of ETc) in three reproductive phenological stages (R7, R8 and R9) in Castanhal-PA, Brazil. The experimental design was in randomized blocks, with six replications and four treatments corresponding to 100, 50, 25 and 0% of daily replacement of crop evapotranspiration, during the reproductive period, through an irrigation system. The surface temperature readings were made with infrared thermometer, during the reproductive stage. The smallest absolute temperature differences between canopy and air occurred in stages R7 and R8. The highest values of water stress index (CWSI) were verified when the plant was under water deficit, regardless of phenological stages. The effect of water deficit caused reductions in stomatal conductance of 58.82% (R7), 83.57% (R8) and 84.87% (R9), in leaf transpiration of 45.97% (R7), 64.21% (R8) and 65.90% (R9) and in the net photosynthetic rate of 40.75% (R7), 66.92% (R8) and 74% (R9). The CWSI varied with the availability of water, showing the highest value (0.75) in the treatment without irrigation, in the R8 stage. The CWSI proved to be a good indicator of the water status of the plant.
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ALLEN, R. G. et al. Crop evapotranspiration-Guidelines for computing crop water requirements-FAO Irrigation and drainage paper 56. Rome: FAO, 1998. 300 p.
ALGHORY, A.; YAZAR, A. Evaluation of crop water stress index and leaf water potential for deficit irrigation management of sprinkler-irrigated wheat. Irrigation Science, 37: 61–77, 2019.
ALVARES, C. A. et al. Köppen’s climate classification map for Brazil. Meteorology Zeitschrift, 22: 711–728, 2013.
BASTOS, E. A. et al. Evapotranspiração e coeficiente de cultivo do feijão-caupi no Vale do Gurguéia, Piauí. Irriga, 13: 182–190, 2008.
BLANCO-CIPOLLONE, F. et al. Plant Water Status Indicators for Irrigation Scheduling Associated with Iso- and Anisohydric Behavior: Vine and Plum Trees. Horticulturae, 3: 1-17, 2017.
CANDOGAN, B. N. et al. Yield, quality and crop water stress index relationships for deficit-irrigated soybean [Glycine max (L.) Merr.] in sub-humid climatic conditions. Agricultural Water Management, 118: 113–121, 2013.
CARVALHO, H. P. et al. Balanço hídrico climatológico, armazenamento efetivo da água no solo e transpiração na cultura de café. Bioscience Journal, 27: 221–229, 2011.
ÇOLAK, Y. B. et al. Evaluation of crop water stress index (CWSI) for eggplant under varying irrigation regimes using surface and subsurface drip systems. Agriculture and Agricultural Science Procedia, 4: 372-382, 2015.
COSTA, D. L. P. et al. Stomatal Conductance of Cowpea Submitted to Different Hydric Regimes in Castanhal, Pará. Brazil. Journal of Agricultural Studies, 8: 138-149, 2019.
FARIAS, V. D. S. et al. Water demand, crop coefficient and uncoupling factor of cowpea in the Eastern Amazon. Revista Caatinga, 30: 190-200, 2017.
FREIRE FILHO, F. R. et al. Cultivar de feijão-caupi: BR3 - Tracuateua purificada para o Estado do Pará. Teresina, PI: Embrapa Meio-Norte, 2005. 4 p.
FERREIRA, D. P. et al. Cowpea Ecophysiological Responses to Accumulated Water Deficiency during the Reproductive Phase in Northeastern Pará, Brazil. Horticulturae, 7: 1-14, 2021.
FREITAS, R. M. O. et al. Physiological responses of cowpea under water stress and rewatering in no-tillage and conventional tillage systems. Revista Caatinga, 30: 559–567, 2017.
GONZALES-DUGO, V. et al. Applicability and limitations of using the crop water stress index as an indicator of water deficits in citrus orchards. Agricultural and Forest Meteorology, 198: 94-104, 2014.
GRAAMANS, L. et al. Plant factories; crop transpiration and energy balance. Agricultural Systems, 153, 138-147, 2017.
IDSO, S. B. et al. Normalizing the stress-degree-day parameter for environmental variability. Agricultural Meteorology, 24: 45–55, 1981.
JACKSON, R. D. et al. A reexamination of the crop water stress index. Irrigation Science, 9: 309–317, 1988.
JAGADISH, S. K. et al. Heat stress during flowering in cereals – Effects and adaptation strategies. New Phytologist, 226: 1567-1572, 2020.
JAGADISH, S. K. et al. Plant heat stress: Concepts directing future research. Plant, Cell & Environment, 44: 1992-2005, 2021.
KING, B. A.; SHELLIE, K. C. Wine grape cultivar influence on the performance of models that predict the lower threshold canopy temperature of a water stress index. Computers and Electronics in Agriculture, 145: 122–129, 2018.
LIN, H. et al. Stronger cooling effects of transpiration and leaf physical traits of plants from a hot dry habitat than from a hot wet habitat. Functional Ecology, 31:2202-2211, 2017.
LIU, J. et al. Effect of summer warming on growth, photosynthesis and water status in female and male Populus cathayana: Implications for sex-specific drought and heat tolerances. Tree Physiol, 40: 1178–1191, 2020.
MENDES, R. M. S. et al. Relações fonte-dreno em feijão-de-corda submetido à deficiência hídrica. Revista Ciência Agronômica, 38: 95-103, 2007.
MOURA, V. B. et al. Actual evapotranspiration and response factors of the cowpea in Amazonian edaphoclimatic conditions. Revista Brasileira de Engenharia Agrícola e Ambiental, 25: 604-611, 2021.
NASCIMENTO, S. P. et al. Tolerância ao déficit hídrico em genótipos de feijão-caupi. Revista Brasileira de Engenharia Agrícola e Ambiental, 15: 853-860, 2011.
RODRIGUES, J. E. L. F. et al. Avaliação da Produtividade de Cultivares de Feijão-Caupi para Cultivo no Estado do Pará. Belém, PA: Embrapa Amazônia Oriental, 2020. 24 p.
RU, C. et al. Evaluation of the Crop Water Stress Index as an Indicator for the Diagnosis of Grapevine Water Deficiency in Greenhouses. Horticulturae, 6: 1-19, 2020.
SILVA, C. J. et al. Tomato water stress index as a function of irrigation depths. Revista Brasileira de Engenharia Agrícola e Ambiental, 22: 95–100, 2018.
SILVA, V. T. et al. Manejo de irrigação na cultura da soja em sistema de semeadura direta, sobre restos culturais de Brachiaria ruziziensis. Research, Society and Development, 9: e64963430, 2020.
SLATERRY, R. A.; ORT, D. P. Perspectives on improving light distribution and light use efficiency in crop canopies. Plant Physiology, 185: 34-48, 2021.
SOUZA, D. F. S. et al. Biophysical controls of evapotranspiration in cowpea cultivation under different water regimes. Revista Brasileira de Engenharia Agrícola e Ambiental, 23: 725-732, 2019.
SOUZA, P. J. O. P. et al. Cowpea leaf area, biomass production and productivity under different water regimes in Castanhal, Pará, Brazil. Revista Caatinga, 30: 748-759, 2017.
SOUZA, P. J. O. P. et al. Yield gap in cowpea plants as function of water deficits during reproductive stage. Revista Brasileira de Engenharia Agrícola e Ambiental, 24: 372-378, 2020.
TAIZ, L.; ZEIGER, E. Fisiologia e desenvolvimento vegetal. 6. ed. Porto Alegre, RS: Artmed, 888 p., 2017.
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