Avaliação do efeito do estresse hídrico no crescimento de cultivares de cana-de-açúcar usando um sistema automático de fertirrigação

Batista, Evandro Lima da Silveira; Zolnier, Sérgio; Ribeiro, Aristides; Lyra, Gustavo Bastos; Silva, Thieres George Freire da; Boehringer, Davi

doi:10.1590/1809-4430-eng.agric.v35n2p215-229/2015

Cited by 4 publications

(7 citation statements)

References 26 publications

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“…m -2 . The dynamics of sugarcane growth and production in this study corroborate those found by Silva et al (2012a) and Silva et al (2014b), Batista et al (2015), Brunini & Turco (2016) and Oliveira & Braga (2019).…”

Section: Resultssupporting

confidence: 89%

Microclimate and Irrigation Affect the Growth Dynamics of Sugarcane in a Semiarid Environment

Carvalho,

Silva,

Santos

et al. 2023

Eng. Agríc.

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The aim of this study was to assess how microclimate variables and irrigation affect the growth of sugarcane. The experiment was conducted using the VAT90-212 cultivar in the Semi-arid region of Brazil. The microclimate was monitored and by quantifying the irrigation depth. Nine campaigns were carried out in the field to collect morphological and biomass data. The data were subjected to descriptive statistics, so as to generate the mean values and/or sum between the campaigns. Using the correlation coefficient, the extent, sign and significance of the relationship between the response and explanatory variables were evaluated. The direct or indirect effects of the explanatory variables on the response variables were identified by path analysis. There was a significant correlation between microclimate variables and the morphological and biomass variables of the sugarcane, with a strong contribution from the intercepted fraction of the photosynthetically active radiation, the wind speed and soil temperature. The negative correlation with irrigation suggests that excess water impaired the growth dynamics of the crop. It is concluded that the growth of sugarcane is closely related to its capacity to intercept radiation, to the wind, thermal regime of the soil and irrigation management.

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Section: Resultssupporting

confidence: 89%

Microclimate and Irrigation Affect the Growth Dynamics of Sugarcane in a Semiarid Environment

Carvalho,

Silva,

Santos

et al. 2023

Eng. Agríc.

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“…The 3 dS m -1 value of the nutrient solution used in the cultivation of sugarcane was based on the studies of Trentin et al (2011), Boehringer et al (2013 and Batista et al (2015), and the amounts of NaCl in studies carried out with the aim of evaluating the effect of salinity on sugarcane growth (Plaut et al, 2000;Patade et al, 2011;Willadino et al, 2011;Simões et al, 2016). The EC monitoring was performed manually with a portable conductivity meter (CDH-42 model, Omega, Stamford, CT, USA).…”

Section: Methodsmentioning

confidence: 99%

“…The measurements of the meteorological variables in the growing environment were carried out by four electronic sensors installed in a structure constructed from PVC pipes, connections with 50 mm diameter and white coloration ( Figure 1D), as used by Batista et al (2015).…”

Section: Methodsmentioning

confidence: 99%

“…As a result of the large volume of soil explored by the sugarcane root system, which can reach more than four meters deep (Laclau & Laclau, 2009), there is a great spatial variation of the soil physical and chemical properties and the water movement inside it (Batista et al, 2015), being difficult to control the uniformity of the treatments application in studies about salinity under field conditions. In this sense, many studies described in the literature were conducted with planting in pots and, generally, with the application of different salts concentrations, such as sodium chloride (NaCl) in the irrigation water, in order to quantify the influence of salinity in the growth and development of sugarcane (Plaut et al, 2000;Patade et al, 2011;Augustine et al, 2015;Simões et al, 2016) and different cultivars (Lima et al, 2014;Silva et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Alterations on the Evapotranspiration of Sugarcane Cultivars Under Distinct Salinity Levels Applied in the Fertigation

et al. 2017

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ABSTRACT:The aim of this research was to evaluate the effect of distinct levels of salinity on the evapotranspiration of the RB867515, RB855453, RB92579 and RB928064 sugarcane cultivars. The evapotranspiration was monitored during daytime period under meteorological conditions influenced, mainly by cloud variations. The salinity values were established by addition of 0, 50, 100 and 150 mM of Sodium Chloride (NaCl) to the nutrient solution, which was applied by fertigation, in such way that the electrical conductivity (EC) of the leached solution was near 3, 6, 10 and 13 dS m -1 , respectively. The increase of the NaCl concentration in the nutrient solution affected, significantly and in a linear manner, the evapotranspiration of all sugarcane cultivars, such that the days with low cloud provided the highest evapotranspiration values and the greater reduction among salinity levels. Analysis of the evapotranspiration accumulated during the daytime period showed that there were no significant differences among sugarcane cultivars and that, under the highest atmospheric water demand, the evapotranspiration decreased 48.5 g plant -1 EC -1 . This value represents the average reduction of 5.1% EC -1 when compared to the treatment without NaCl, considering data of all cultivars.

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“…Water stress causes a reduction in carbon dioxide assimilation rates, in leaf area size, in transpiration and growth rate, in plant water potential and stomatal opening (Rao et al, 2005;Gouvêa, 2008), in addition to a decrease in the stalk final height of sugarcane (Batista et al, 2015). Temperature is another extremely important climatic element in the production of sugarcane, acting directly on the maturation process, in which the plants respond to the thermal amplitude for the change from vegetative to reproductive stage (Doorenbos & Kassam, 1979).…”

Section: Introductionmentioning

confidence: 99%

Sugarcane yield estimation for climatic conditions in the state of Goiás

Caetano

Casaroli

2017

Rev. Ceres

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RESUMOModels that estimate potential and depleted crop yield according to climatic variable enable the crop planning and production quantification for a specific region. Therefore, the objective of this study was to compare methods to sugarcane yield estimates grown in the climatic condition in the central part of Goiás, Brazil. So, Agroecological Zone Method (ZAE) and the model proposed by Scarpari (S) were correlated with real data of sugarcane yield from an experimental area, located in Santo Antônio de Goiás, state of Goiás, Brazil. Data yield refer to the crops of 2008/2009 (sugarcane plant), 2009/2010, 2010/2011 and 2011/2012 (ratoon sugarcane). Yield rates were calculated as a function of atmospheric water demand and water deficit in the area under study. Real and estimated yields were adjusted in function of productivity loss due to cutting stage of sugarcane, using an average reduction in productivity observed in the experimental area and the average reduction in the state of Goiás. The results indicated that the ZAE method, considering the water deficit, displayed good yield estimates for cane-plant (d > 0.90). Water deficit decreased the yield rates (r = -0.8636; α = 0.05) while the thermal sum increased that rate for all evaluated harvests (r > 0.68; α = 0.05). Estimativa da produtividade agrícola da cana-de-açúcar para as condições climáticas do Centro GoianoModelos que estimam a produtividade potencial e deplecionada dos cultivos agrícolas em função de variáveis climáticas tornam possível o planejamento agrícola da lavoura e a quantificação da produção para uma dada região. Sendo assim, objetivou-se comparar métodos para a estimativa da produtividade da cana-de-açúcar cultivada nas condições climáticas da região central do Estado de Goiás. Para isto, utilizaram-se o Método da Zona Agroecológica (ZAE) e o modelo proposto por Scarpari (S), correlacionando-os aos dados reais de produtividade da cana, em uma área experimental, localizada em Santo Antônio de Goiás GO. Os dados de produtividade são referentes aos anos safra 2008/2009 (cana-planta), 2009/2010, 2010/2011 e 2011/2012 (canas-soca). Foram avaliadas também as taxas de produtividade em função da demanda hídrica atmosférica e do déficit hídrico da região de estudo. As produtividades estimadas e reais foram ajustadas em função da quebra de produtividade devido ao estádio de corte da cana, utilizando-se a redução de produtividade média observada na área experimental e a redução média para o estado de Goiás. Os resultados indicaram que a metodologia ZAE considerando o déficit hídrico apresentou boas estimativas de produtividade para a cana-planta (d > 0,90). O déficit hídrico ocasiona redução na taxa de produtividade (r = 0,8636, α = 0,05), enquanto a soma térmica contribui para o aumento dessa taxa em todas as safras avaliadas (r > 0,68, α = 0,05).Palavras-chave: Saccharum spp.; planejamento agrícola; modelo de previsão de produtividade.

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Avaliação do efeito do estresse hídrico no crescimento de cultivares de cana-de-açúcar usando um sistema automático de fertirrigação

Cited by 4 publications

References 26 publications

Microclimate and Irrigation Affect the Growth Dynamics of Sugarcane in a Semiarid Environment

Microclimate and Irrigation Affect the Growth Dynamics of Sugarcane in a Semiarid Environment

Alterations on the Evapotranspiration of Sugarcane Cultivars Under Distinct Salinity Levels Applied in the Fertigation

Sugarcane yield estimation for climatic conditions in the state of Goiás

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