Production of Pityrocarpa moniliformis (Benth.) Luckow &amp; R.W. Jobson (Fabaceae) seedlings irrigated with saline water

Ferreira, Adriana dos Santos; Leal, Caio César Pereira; Guirra, Bruno da S.; Torres, Salvador Barros; Porceddu, Marco; Bacchetta, Gianluigi

doi:10.1590/1807-1929/agriambi.v25n3p182-188

Cited by 3 publications

(1 citation statement)

References 25 publications

(28 reference statements)

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“…As observed for the concentration of total sugars, it was found that the water deficit also favored the increase of proline, as plants in the treatment with the highest level of stress (16 days without irrigation) were able to express a quantity of proline 32 times higher than that found in the control treatment (Figure 3C). The accumulation of this biomolecule was also verified in a situation of salt stress for the same species (FERREIRA et al, 2021).…”

Section: Resultsmentioning

confidence: 69%

Growth and metabolism of <i>Pityrocarpa moniliformis</i> Benth. seedlings under water deficit

Guirra

Silva²,

Leal³

et al. 2022

Ciênc. Florest.

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Pityrocarpa moniliformis Benth. has medicinal properties, forage potential, besides showing rusticity and rapid growth, which confer potential to recover degraded areas. In this context, the objective was to evaluate the growth and biochemical components of Pityrocarpa moniliformis seedlings under water deficit conditions. The design used was randomized blocks, with five treatments and four replicates, with the experimental plot consisting of twenty plants. Treatments were characterized by different periods of water deficit (0; 4; 8; 12 and 16 days without irrigation). At 44 days after sowing (DAS), when the seedlings had two pairs of fully formed true leaves, the treatments began to be applied. The development of the seedlings was evaluated until 60 DAS when they were collected for biometric and biochemical analyses. The variables analyzed were shoot height; collar diameter; number of leaves; shoot dry mass; root dry mass; root/shoot ratio; and Dickson’s quality index. Contents of total chlorophyll, chlorophyll a, chlorophyll b, total free amino acids, total soluble sugar, and proline contents in the leaves were also determined. The treatment most affected by the lack of irrigation was 16 days of water deficit, which resulted in the death of 38.8% of the seedlings. This condition caused a decrease in shoot length, reducing it by approximately 29.2% compared to the control treatment. There was also a reduction in the production of new leaves from the eighth day after the differentiation of treatments. Pityrocarpa moniliformis seedlings can develop under the condition of water deficit for up to 8 days, even with chlorophyll degradation due to stress. Pityrocarpa moniliformis maintains its vegetative development by performing osmotic adjustment through the accumulation of biomolecules (sugars, proline, and amino acids).

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Section: Resultsmentioning

confidence: 69%

Growth and metabolism of <i>Pityrocarpa moniliformis</i> Benth. seedlings under water deficit

Guirra

Silva²,

Leal³

et al. 2022

Ciênc. Florest.

Self Cite

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Priming cycles with salinity tolerance elicitors in seeds of Mimosa caesalpiniifolia and Pityrocarpa moniliformis

Pereira,

Torres,

de Paiva

et al. 2024

Biologia

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Physiological performance of Tabebuia aurea seeds subjected to abiotic stresses

Medeiros,

Pereira,

Torres

et al. 2023

Rev. Caatinga

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Seeds subjected to abiotic stresses may have their physiological performance compromised, impairing the multiplication of species. Thus, the objective was to evaluate the germination and initial development of Tabebuia aurea seedlings subjected to water and salt stresses. Water stress was simulated with two osmotic agents (PEG 6000 and mannitol) at five osmotic potentials (0.0, -0.2, -0.4, -0.6 and -0.8 MPa). For salt stress, three osmotic agents (NaCl, KCl and CaCl2) were used at five concentrations (0, 6, 12, 18 and 24 dS m-1). The experiments were conducted under a completely randomized experimental design, with four replicates of 25 seeds, in a factorial scheme (osmotic agents × potentials), and the data were subjected to analysis of variance and regression. The variables analyzed were germination, first germination count, germination speed index, root and shoot length, and seedling root and shoot dry mass. The results showed that water and salt stresses reduced the germination and vigor of T. aurea seeds, with water stress being more harmful to the species, especially when induced by PEG 6000. Of the salts used, the one that most harmed the species was CaCl2, followed by NaCl and KCl.

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Production of Pityrocarpa moniliformis (Benth.) Luckow & R.W. Jobson (Fabaceae) seedlings irrigated with saline water

Cited by 3 publications

References 25 publications

Growth and metabolism of <i>Pityrocarpa moniliformis</i> Benth. seedlings under water deficit

Growth and metabolism of <i>Pityrocarpa moniliformis</i> Benth. seedlings under water deficit

Priming cycles with salinity tolerance elicitors in seeds of Mimosa caesalpiniifolia and Pityrocarpa moniliformis

Physiological performance of Tabebuia aurea seeds subjected to abiotic stresses

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