Emergência Do Maracujazeiro-Amarelo Sob Estresse Salino Em Diferentes Substratos

Ribeiro, A. A.; Moreira, Francisco José Carvalho; Filho, Marconi Seabra; Menezes, Ademir Silva

doi:10.18011/bioeng2016v10n1p27-36

Cited by 3 publications

(4 citation statements)

References 24 publications

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“…When comparing the ESI of seedlings cultivated under ECw of 2.8 dS m -1 with the values of those that received the lowest salinity level (0.7 dS m -1 ), there was decrease of 16.98% (0.0483 seedlings d -1 ). Similar results were obtained by Ribeiro et al (2016) in yellow passion fruit plants under salt stress (0.23 to 4.5 dS m -1 ), with a reduction of 21.09% in ESI under the highest salinity level when compared with lowest salinity level.…”

Section: Resultssupporting

confidence: 85%

Hydrogen peroxide in the acclimation of yellow passion fruit seedlings to salt stress

Silva

Veloso

Lima

et al. 2021

Rev. bras. eng. agríc. ambient.

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The objective of the present study was to evaluate the effect of exogenous application of hydrogen peroxide on the emergence, growth and gas exchange of yellow passion fruit seedlings subjected to salt stress. The experiment was conducted in pots (Citropote®) under greenhouse conditions, in the municipality of Campina Grande, PB, Brazil. Treatments were distributed in a randomized block design, in a 4 x 4 factorial arrangement, with four levels of electrical conductivity of irrigation water (0.7, 1.4, 2.1 and 2.8 dS m-1) associated with four concentrations of hydrogen peroxide (0, 25, 50 and 75 μM), with four replicates and two plants per plot. Irrigation using water with electrical conductivity above 0.7 dS m-1 negatively affects the emergence and growth of passion fruit. Hydrogen peroxide concentrations between 10 and 30 μM induce the acclimation of passion fruit plants to salt stress, mitigating the deleterious effects of salinity on the relative growth rate in stem diameter and leaf area, stomatal conductance, transpiration, CO2 assimilation rate and instantaneous carboxylation efficiency. Irrigation water salinity combined with hydrogen peroxide concentrations above 30 μM causes reduction in passion fruit growth and physiology.

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Section: Resultssupporting

confidence: 85%

Hydrogen peroxide in the acclimation of yellow passion fruit seedlings to salt stress

Silva

Veloso

Lima

et al. 2021

Rev. bras. eng. agríc. ambient.

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“…al., 2020). Ribeiro et al, (2016) reaffirm that it is important to evaluate the mean time of emergence to classify the vigor of seeds, these same authors working with the culture of passion fruit obtained higher ATE under salt stress (4.5 dS m -1 ). Figure 3B shows that low electrical conductivity water provided a higher average speed of emergence (0.068 days) compared to high electrical conductivity water (0.064 days).…”

Section: Resultsmentioning

confidence: 78%

“…The germination process of yellow passion-fruit seeds follows a three-phase pattern, with rapid water uptake in phases one and three (Phase 1: rapid increase in moisture demand at the beginning of emergence; Phase 3: speed of uptake enhanced with the emission of the radicle), being of great importance the water maintenance in these periods, but salt stress tends to reduce the water potential, hindering the uptake of water resulting in a lower rate of emergence as shown in Figure 2B (Bezerra et al, 2014). Ribeiro et. al., (2016) obtained similar results, i.e., a decline in emergence after irrigation with saline water (1 to 5 dS m -1 ) in passion fruit culture.…”

Section: Resultsmentioning

confidence: 99%

Salt stress and ambience in the culture of yellow passion-fruit

Semedo

Sousa

et al. 2022

Braz J Biosyst Eng

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Salt stress negatively affects the emergence and initial growth of crops. However, the use of protected environments emerges as an alternative to enhance these parameters. In this sense, the objective was to evaluate the effect of different environments and the salinity of the irrigation water on the emergence and development of yellow passion-fruit seedlings. The experiment was conducted at the University for International Integration of the Afro-Brazilian Lusophony, in the city of Redenção, Ceará. The experimental design was entirely randomized in a subdivided plot scheme, with four cultivation environments under different shading screens (black screen; white screen; red screen; all with 50% shading; and full sun), and two electrical conductivities of irrigation water: 0.3 dS m-1 and 3.0 dS m-1, with five repetitions of 25 seeds. The protected environment with 50% black roofing stood out from the others providing a better percentage of emergence, seedling height, stem diameter, number of leaves and radicle length in yellow passion-fruit. The deleterious effects of salts on the rate of emergence and shoot dry matter were reduced when the 50% black shade cloth was used. Irrigation with water of higher conductivity caused reductions and retardation in the emergence of passion-fruit. Besides negatively affecting seedling height, stem diameter and shoot dry matter.

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“…In this context, palm water needs may modify, changing water absorption process and evapotranspiration due to salt accumulations in soil, contributing to its degradation [5]. According to Ribeiro, Moreira, Seabra Filho and Menezes [6], salinity is one of the abiotic stresses limiting agricultural production the most, since it presents negative effects on vegetal development.…”

Section: Introductionmentioning

confidence: 99%

Effect of Irrigation Depths and Salinity Levels on the Growth and Production of Forage Palm Orelha de Elefante Mexicana

Pereira¹,

Ramos²,

Azevedo³

et al. 2023

Irrigation and Drainage - Recent Advances

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Although the adaptation of forage palm to the Brazilian semi-arid, it may be influenced by soil and climatic conditions of this region, irregular rainy periods, high annual evapotranspiration and soils with a low water retention capacity. These factors may reduce crop production during dry seasons, including forage. The present research aimed at analyzing the effect of irrigation with different water depths and levels of salinity on Orelha de Elefante Mexicana cultivar. The study was carried out in pots in the Federal University of Campina Grande, from September 2017 to December 2018. Experimental design was randomized blocks in a factorial scheme 4 x 4, with 4 replications. Four irrigation water depths were applied (25, 50, 75, and 100%), as a function of water retention capacity of soil and four levels of electrical conductivity: 0.60; 3.00; 5.40 and 7.80 dS m−1. Morphometric and production variables were evaluated. Plant growth was not affected by irrigation water depth and levels of salinity, except the thickness of secondary cladode. Primary cladodes showed the greatest average values (4.03 cladodes) for 376.00 mm depth. The other variables evaluated did not present significant effects under treatments. Saline water did not affect the total production of the cultivar.

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Emergência Do Maracujazeiro-Amarelo Sob Estresse Salino Em Diferentes Substratos

Cited by 3 publications

References 24 publications

Hydrogen peroxide in the acclimation of yellow passion fruit seedlings to salt stress

Hydrogen peroxide in the acclimation of yellow passion fruit seedlings to salt stress

Salt stress and ambience in the culture of yellow passion-fruit

Effect of Irrigation Depths and Salinity Levels on the Growth and Production of Forage Palm Orelha de Elefante Mexicana

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