Yield of cotton cultivars under different irrigation depths in the Brazilian semi-arid region

Zonta, J. H.; Bezerra, J. R. C.; Sofiatti, Valdinei; Brandão, Ziany Neiva

doi:10.1590/1807-1929/agriambi.v19n8p748-754

Cited by 20 publications

(19 citation statements)

References 18 publications

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“…The results of the present study corroborate those of [23], who observed increase in cotton yield as water replacement increased, and are also consistent with those found by [7], who observed quadratic fit of cotton yield with higher K supply in the soil and in the leaf. When the crop received only the irrigation necessary to replace 100% ETC using treated domestic wastewater, SCW was equal to 29.0 g plant -1 , similar to the value obtained in the absolute control.…”

Section: Seed Cotton Weightsupporting

confidence: 93%

Agronomic performance of colored cotton influenced by irrigation with treated domestic sewage and potassium fertilization in semi-arid region of Brazil

Lima

Silva

Bezerra

et al. 2019

DYNA

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This study evaluated the contribution of potassium (K) nutrition and application of wastewater depths to the agronomic performance of colored cotton. Treatments consisted of five irrigation depths (50, 75, 100, 125 and 150% of crop evapotranspiration -ETC) and five K doses (0, 50, 100, 150 and 200% of the recommendation for the crop) and an absolute control irrigated with 100% ETCwater depth and fertilized with 100% N-P-K recommendation. Each treatment and the control had four replicates. Plant height, stem diameter, leaf area and shoot dry matter accumulation of cotton were evaluated at 130 days after emergence (DAE), whereas seed cotton weight was evaluated at 135 DAE. Our findings indicate that the use of treated domestic sewage for 100% ETCreplacement promotes greater gains of weight and growth in colored cotton without the need for K fertilization, evidencing the potential of wastewater for colored cotton for sustainable agriculture.

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Section: Seed Cotton Weightsupporting

confidence: 93%

Agronomic performance of colored cotton influenced by irrigation with treated domestic sewage and potassium fertilization in semi-arid region of Brazil

Lima

Silva

Bezerra

et al. 2019

DYNA

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“…Other research studies corroborate all the evaluated variables, such as Zonta et al (2015b), who have studied the effect of irrigation on yield and fiber quality in upland cotton cultivars; Zonta et al (2017), who have studied the influence of sampling on the analysis of the fiber quality of irrigated and water stressed cotton; and Almeida et al (2016), who have studied the effect of periods of water deficit in different phenological stages for cotton fiber quality, who have also found significant differences between treatments and cultivars studied for fiber variables at 1% probability level.…”

Section: Resultssupporting

confidence: 71%

“…According to Bradow and Davidonis (2000), fiber color is directly linked to environmental factors during the growing season, which in this work was the water stress in different phenological stages. Zonta et al (2015b) state that factors such as the application of defoliants and desiccants, pest attack, among others, can also influence fiber color.…”

Section: Resultsmentioning

confidence: 99%

“…Santana et al (2008) stated that the most important fiber characteristics in the current and modern textile processes are micronaire and resistance. It is important to note that even for micronaire, it was within an acceptable quality range by the brazilian textile industry (Zonta et al, 2015b). (2000), Bauer et al (2009) andFeng et al (2011) mentioned in their work that variation in fiber components can occur within a single plant and, when working with standard samples, as in this research, in which the middle third of the plants are collected, the result of these fiber analysis can be masked, not representing the actual condition of the plot or block, especially when working with experiments in which abiotic stresses, such as water stress, are applied.…”

Section: Resultsmentioning

confidence: 99%

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Fiber quality in upland cotton cultivars under water deficit strategies

Araújo¹,

Pereira²,

Zonta³

et al. 2019

Afr. J. Agric. Res.

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An evaluation was made of upland cotton cultivar fiber quality, when subjected to water deficit periods, on the phenological stages. The experiment was carried out at the Campina Grande Federal University, Pombal county Campus, Paraíba State, Brazil, between June and December 2015. Treatments were formed using a split-plot arrangement, in which the plots were 6 water deficit periods (P) (P1 = No deficit; P2 = Deficit in the initial growth stage; P3 = Deficit in the flower bud stage; P4 = Deficit in the flower stage; P5 = Deficit in the boll stage; and P6 = Deficit in the open boll stage) and the subplots, 2 upland cotton cultivars (C) (C1 = Brazil Seeds 286 and C2 = BRS 336), in randomized block design, with 4 replicates. The water deficits applied affected cultivars fiber quality, except maturity, reflectance and yellowness. The treatment without water deficit promoted the best fiber values, except of short fiber index, elongation and micronaire. Tested upland cotton cultivars were more tolerant to water deficit in the initial growth and boll stages. In general, BRS 336 was more tolerant to water deficits than BRS 286.

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“…Several studies have been conducted, showing that prolonged water deficit during the cotton cultivation cycle affects growth, productivity, and quality of the fibers (SNOWDEN et al, 2013;ZONTA et al, 2015a, ZONTA et al, 2015b.…”

Section: Introductionmentioning

confidence: 99%

Cotton Response to Water Deficits at Different Growth Stages

et al. 2017

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-Water deficit at certain cotton growth stages can cause severe damage to crop development, affecting physiological processes and reducing reproductive structures, with consequent yield losses. The objective of this study was to evaluate the response of cotton cultivars under water deficit applied at different stages of the crop cycle. We compared the number of bolls per meter, cotton yield, and water use efficiency for eight different cotton cultivars under a water deficit of 15 days. We selected the following growth stages: Emergence (EM), First Square (FS), First Flower (FL), Peak Bloom (PB), and First Open Boll (FOB). The control treatment was irrigated with 100% ETc. The experiment was conducted in Apodi, RN State of Brazil, semiarid region, using a sprinkler irrigation system. The number of bolls per meter, cotton yield, and water use efficiency were influenced by the interaction of cultivars x deficit periods. Lowest values were observed for water suppression in the FL and PB stages. When the water deficit was imposed in the initial stages of growth (EM to FS) or after the FOB stage, the cotton yield reduction was not significant. At the same stage and water deficit, the behavior of the different cultivars was similar. Producers are urged to take this information into account when developing irrigation schemes for cotton crops, thereby avoiding water deficits during the most critical periods of the crop cycle.Key words: Irrigation Management. Shedding. Semiarid. RESPOSTA DO ALGODOEIRO AO DÉFICIT HÍDRICO EM DIFERENTES FASES DE CRESCIMENTORESUMO -O déficit hídrico em determinadas fases do ciclo de cultivo do algodoeiro pode causar severos danos, afetando as estruturas reprodutivas, acarretando perda na produtividade. O objetivo deste trabalho foi avaliar a resposta de cultivares de algodoeiro submetidas ao déficit hídrico em diferentes fases do ciclo de cultivo. Comparou-se o número de capulhos por metro, a produtividade e a eficiência no uso da água em oito cultivares de algodoeiro herbáceo, submetidas a déficit hídrico por 15 dias nos estádios: emergência, emissão do primeiro botão floral, emissão da primeira flor, emissão da primeira maçã, abertura do primeiro capulho e a testemunha irrigada com 100% da ETc. O experimento foi instalado no município de Apodi-RN, região Semiárida do Nordeste, em área irrigada por aspersão. O número de capulhos por metro, a produtividade de algodão em caroço e a eficiência de uso da água foram influenciadas pela interação cultivares x déficit hídrico. Os piores resultados foram observados para o déficit hídrico de 15 dias após a emissão da primeira maçã e da primeira flor. Quando o déficit hídrico foi imposto nas fases de crescimento inicial, após a emissão do primeiro botão floral e após a abertura do primeiro capulho, a perda de produtividade não foi significativa. Dentro de um mesmo período de déficit hídrico, as cultivares se comportaram de maneira similar. Os produtores devem levar essa informação em consideração para ouso da irrigação suplementar e para progr...

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Yield of cotton cultivars under different irrigation depths in the Brazilian semi-arid region

Cited by 20 publications

References 18 publications

Agronomic performance of colored cotton influenced by irrigation with treated domestic sewage and potassium fertilization in semi-arid region of Brazil

Agronomic performance of colored cotton influenced by irrigation with treated domestic sewage and potassium fertilization in semi-arid region of Brazil

Fiber quality in upland cotton cultivars under water deficit strategies

Cotton Response to Water Deficits at Different Growth Stages

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