Physiology and production of cherry tomato cultivars in a hydroponic system using brackish water

Batista, Mateus Costa; Nascimento, Ronaldo do; Júnior, Sebastião de Oliveira Maia; Nascimento, Elka Costa Santos; Bezerra, Carlos Vailan de Castro; Lima, Robson Felipe de

doi:10.1590/1807-1929/agriambi.v25n4p219-227

Cited by 12 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This situation possibly caused changes in the ionic homeostasis of plants, which probably favored the translocation of part of the photoassimilates produced by the photosynthetic process for acclimatization of plants cultivated under stress (LIMA et al, 2019). Results similar to those obtained in the present study were found by Batista et al (2021), who studied cherry tomato in hydroponic system using brackish water in the nutrient solution (EC NS = 2.5; 4.0; 5.5; 7.0 and 8.5 dS m -1 ) and found that the fruit yield of the cultivar red cherry tomato decreased with the increase in the electrical conductivity of the nutrient solution.…”

Section: Resultssupporting

confidence: 89%

Biomass, Gas Exchange and Production of Cherry Tomato Cultivated Under Saline Water and Nitrogen Fertilization

et al. 2022

View full text Add to dashboard Cite

Cherry tomato cultivation in the semi-arid region of northeastern Brazil is limited by water scarcity, so it is common to use water sources with high concentrations of salts in this region, which have a deleterious effect on plants, which can be alleviated through management strategies, and fertilization with nitrogen stands out. This study aimed to evaluate the growth, gas exchange and production of cherry tomato under irrigation with saline water and nitrogen fertilization. The experiment was carried out in a screened environment at the CCTA/UFCG in Pombal - PB from October 2020 to February 2021, using a randomized block design, in a 5 × 5 factorial scheme, with five levels of electrical conductivities of water - ECw (0.3; 1.3; 2.3; 3.3 and 4.3 dS m−1) and five nitrogen doses - ND (50; 75; 100; 125 and 150% of the recommended dose for the crop), with three replicates. Irrigation water salinity from 0.3 dS m−1 reduced stomatal conductance, transpiration, CO2 assimilation rate and production components of cherry tomato. Nitrogen fertilization from 50% of the recommendation reduced stomatal conductance, transpiration and CO2 assimilation rate of cherry tomato. Irrigation with water of electrical conductivity from 0.3 dS m−1 associated with nitrogen dose of 150% of the recommendation intensified the effect of salt stress on dry biomass accumulation in cherry tomato.

show abstract

Section: Resultssupporting

confidence: 89%

Biomass, Gas Exchange and Production of Cherry Tomato Cultivated Under Saline Water and Nitrogen Fertilization

et al. 2022

View full text Add to dashboard Cite

show abstract

“…No contexto do uso de águas salobras, é usual avaliar sintomas de estresse nas plantas através de análises fisiológicas sobre o aparato fotossintético e o rendimento fotoquímico, a exemplo das trocas gasosas (Branco et al, 2020;Batista et al, 2021) e fluorescência da clorofila (Zhu et al, 2017;. Isto porque, além de serem análises nãodestrutivas -que possibilitam visualizar informações sobre o processo fotossintético sem destruição da amostra -indicam possíveis adaptações da planta ao estresse, pois ajustes fisiológicos, bioquímicos e moleculares são necessários para a sobrevivência da planta em ambiente salino (Kalaji et al, 2016;Willadinho et al, 2017).…”

Section: 1introduçãounclassified

Uso de condicionadores de substrato no cultivo do girassol ornamental irrigado com águas salobras

Martins¹

View full text Add to dashboard Cite

Use of substrate conditioners in ornamental sunflower cultivation irrigated with brackish waterThe reduction of water offer has encouraged the search for strategies for economy and more efficient use in agricultural production. The use of water of inferior quality that has been used in conjunction with some techniques, such as the use of conditioners in the cultivation, an alternative that allows greater absorption and availability of water for plants. Given the above, the objective was to study irrigation with brackish water using substrate conditioners, analyzing the economic aspects of these conditioners and the physiological aspects of the ornamental sunflower crop, an agronomic species of high commercial movement due to the exuberance of its flowers and rapid economic return. The experiments were carried out between September 2020 and March 2021, in a protected environment on the premises of the "Luiz de Queiroz" College of Agriculture (ESALQ/USP), in the municipality of Piracicaba -SP (22º 42' S, 47º 38' W, 546 m of average altitude), and the treatments were allocated in an experimental design in randomized blocks, in a split-plot scheme with four replications. Two different experiments were carried out, one with 4 doses of hydrogel (0.0, 0.5, 1.0 and 1.5 g kg -1 ) and the other with 4 proportions of coconut fiber (0, 15, 20 and 25% of the substrate volume), both irrigated with 4 levels of electrical water conductivity (0.5, 2.0, 3.5 and 5.0 dS m -1 ), the two experiments obtained two cycles, one performed in spring (from September to December) and another in summer (from January to March). Physiological variables related to gas exchange and photochemical efficiency of the plants were analyzed, as well as the production through the shoot dry matter. These data were submitted to analysis of variance using an F test at 0.05 probability. Also, analyzes of fixed irrigation costs and variables of maintenance, labor, water, pumping and substrate were carried out jointly with analysis of growth through plant height and external diameter of the chapter. Among the main conclusions, it's highlighted that the use of both substrate conditioners in saline environment leads to improvements in the productive, physiological and growth aspects of ornamental sunflower plants, cv. Anão de jardim, not compensating the use of both without salinity. In economic aspects, as the amount of coconut fiber in the substrate increases, costs decrease, however, excess fiber did not improve plant growth and under electrical conductivity of 5.0 dS m -1 the results with fiber were not as expressive, while hydrogel, despite being more expensive, resulted in improvements at all doses for the four electrical conductivities analyzed.

show abstract

Cherry Tomato Crop Management Under Irrigation Levels: Morphometric Characteristics and Their Relationship with Fruit Production and Quality

et al. 2022

View full text Add to dashboard Cite

Physiology and production of cherry tomato cultivars in a hydroponic system using brackish water

Cited by 12 publications

References 26 publications

Biomass, Gas Exchange and Production of Cherry Tomato Cultivated Under Saline Water and Nitrogen Fertilization

Biomass, Gas Exchange and Production of Cherry Tomato Cultivated Under Saline Water and Nitrogen Fertilization

Uso de condicionadores de substrato no cultivo do girassol ornamental irrigado com águas salobras

Cherry Tomato Crop Management Under Irrigation Levels: Morphometric Characteristics and Their Relationship with Fruit Production and Quality

Contact Info

Product

Resources

About