Gas exchange and growth of zucchini crop subjected to salt and water stress

Sousa, Henderson Castelo; Sousa, Geocleber Gomes de; Cambissa, Paulo Bumba Chiumbua; Lessa, Carla Ingryd Nojosa; Goes, Geovana Ferreira; Silva, Fred Denílson Barbosa da; Abreu, Fernanda da S.; Viana, Thales Vinícius de Araújo

doi:10.1590/1807-1929/agriambi.v26n11p815-822

Cited by 8 publications

(1 citation statement)

References 24 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These stresses have a negative effect on physiological processes, causing partial closure of the stomata, limiting the internal CO2 concentration, reducing the rates of photosynthesis and transpiration, and consequently water use efficiency and agricultural crop yields worldwide [15][16][17]. [18], evaluating the interaction between salt and water stress in the courgette, found a reduction in photosynthesis and transpiration. Similarly, [19] found a reduction in the productivity of peanuts under salt and water stress.…”

Section: Introductionmentioning

confidence: 99%

Bacillus aryabhattai Mitigates the Effects of Salt and Water Stress on the Agronomic Performance of Maize Under an Agroe-Cological System

Sousa¹,

Sousa²,

Viana³

et al. 2023

Preprint

View full text Add to dashboard Cite

The use of plant growth-promoting bacteria can be one option for mitigating the impact of abiotic constraints on different cropping systems in the tropical semi-arid region. The aim of this study was to evaluate growth, leaf gas exchange and yield in maize inoculated with Bacillus aryabhattai, and subjected to water and salt stress. The experiment followed a randomised block design, in a split plot arrangement, with six repetitions. The plots comprised two levels of electrical conductivity for the irrigation water (ECw): 0.3 dS m-1 and 3.0 dS m-1; the subplots consisted of three irrigation depths (ID1: 50%, ID2: 75%, and ID3: 100% of the crop evapotranspiration (ETc)); while the sub-subplots included the presence or absence of Bacillus aryabhattai inoculant. A water deficit of 50% of the ETc resulted in the principal negative effects on growth, reducing the leaf area and stem diameter. The use of Bacillus aryabhattai mitigated salt stress and promoted better leaf gas exchange by increasing the CO2 assimilation rate, stomatal conductance, and internal CO2 concentration. However, irrigation with brackish water (3.0 dS m-1) reduced the instantaneous water use efficiency of the maize. Inoculation partially reduced the effects of abiotic stress due to morpho-physiological traits, and increased yield potential under water deficit with no salt stress.

show abstract

Section: Introductionmentioning

confidence: 99%

Bacillus aryabhattai Mitigates the Effects of Salt and Water Stress on the Agronomic Performance of Maize Under an Agroe-Cological System

Sousa¹,

Sousa²,

Viana³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

The effect of abiotic stresses on plant C:N:P homeostasis and their mitigation by silicon

Costa,

de Mello Prado,

Palaretti

et al. 2024

The Crop Journal

View full text Add to dashboard Cite

Leaf gas exchanges and production of kale under Ca(NO3)2 concentrations in salinized nutrient solution

Silva

Oliveira

Nascimento

et al. 2023

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

Adequate mineral supplementation can be a strategy to enable the use of brackish water in the production of vegetables. This study intended to evaluate the effect of calcium nitrate concentrations on leaf gas exchanges and yield of kale (Brassica oleracea L) fertigated with salinized nutrient solutions. The experiment was conducted in a randomized block experimental design (4 + 1), with four replicates. Four nutrient solutions prepared in brackish water (6.0 dS m-1) containing four concentrations of Ca(NO3)2 [(750, 1,125, 1,500, and 1,875 mg L-1)] and a control treatment (standard nutrient solution using low-salinity water, 0.5 dS m-1 (750 mg L-1 of Ca(NO3)2) were used in the study. The following analyses were performed: leaf gas exchanges, leaf area, and fresh matter yield. The standard nutrient solution promoted higher values for photosynthetic rate (13.06 µmol CO2 m-2 s-1), stomatal conductance (0.19 mol H2O m-2 s-1), transpiration (2.76 mmol H2O m-2 s-1), instantaneous water use efficiency (4.73 mmol CO2 mol-1 H2O), instantaneous carboxylation efficiency (0.053 mmol CO2 mol-1 CO2), leaf area (2.78 cm2 per plant), and leaf fresh matter yield (2.64 kg per plant). The Ca(NO3)2 not nullified but mitigated the deleterious effect of salt stress on leaf gas exchanges, except for kale yield (leaf fresh matter).

show abstract

Gas exchange and growth of zucchini crop subjected to salt and water stress

Cited by 8 publications

References 24 publications

Bacillus aryabhattai Mitigates the Effects of Salt and Water Stress on the Agronomic Performance of Maize Under an Agroe-Cological System

Bacillus aryabhattai Mitigates the Effects of Salt and Water Stress on the Agronomic Performance of Maize Under an Agroe-Cological System

The effect of abiotic stresses on plant C:N:P homeostasis and their mitigation by silicon

Leaf gas exchanges and production of kale under Ca(NO3)2 concentrations in salinized nutrient solution

Contact Info

Product

Resources

About