scholarly journals Gas exchanges and production of West Indian cherry cultivated under saline water irrigation and nitrogen fertilization

2019 ◽  
Vol 40 (6Supl2) ◽  
pp. 2947
Author(s):  
Geovani Soares de Lima ◽  
Francisco Wesley Alves Pinheiro ◽  
Adaan Sudário Dias ◽  
Hans Raj Gheyi ◽  
Reginaldo Gomes Nobre ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Irrigation Water ◽  
Nitrogen Fertilization ◽  
Rural Areas ◽  
Saline Water ◽  
Intercellular Co2 Concentration ◽  
West Indian ◽  
Co2 Concentration ◽  
Recommended Dose ◽  
Gas Exchanges

West Indian cherry is of great socioeconomic importance to Brazil because of its potential to keep local workers in rural areas and generate income. It is mainly cultivated in the Northeast region, where high salt concentrations are common in water. This study was conducted to evaluate gas exchanges and production of West Indian cherry cultivar (cv.) ‘BRS 366 Jaburu’, as a function of irrigation with water of different salinity levels, and nitrogen fertilization, at the post-grafting stage. The experiment was carried out in pots adapted into drainage lysimeters, under greenhouse conditions in Campina Grande, PB, Brazil. The experimental design was randomized blocks with three replicates, using a 2 × 4 factorial arrangement in which the treatments corresponded to two levels of irrigation water electrical conductivity (ECw: 0.8 and 4.5 dS m-1) and four nitrogen doses (ND: 70, 85, 100, and 115% of the recommended dose). The 100% dose corresponded to 200 g of nitrogen per plant per year. Irrigation water electrical conductivity of 4.5 dS m-1 led to alterations in the gas exchanges and production components of West Indian cherry cv. ‘BRS 366 Jaburu’. An increase in intercellular CO2 concentration resulted in the occurrence of non-stomatal effects on the assimilation rate of CO2 under water salinity conditions of 4.5 dS m-1. The mean weight of West Indian cherry fruits was reduced when nitrogen doses were above 85% of the recommended level. Nitrogen doses above 70% of the recommended dose (140 g per plant) intensified the negative effects of salt stress on the total number and weight of West Indian cherry fruits.

scholarly journals Water Relations and Gas Exchanges of West Indian Cherry under Salt Stress and Nitrogen and Phosphorus Doses

2017 ◽  
Vol 9 (10) ◽  
pp. 168 ◽  
Author(s):  
Francisco V. da S. Sá ◽  
Hans R. Gheyi ◽  
Geovani S. de Lima ◽  
Emanoela P. de Paiva ◽  
Pedro D. Fernandes ◽  
...  
Keyword(s):  
Chlorophyll A ◽  
Water Relations ◽  
Irrigation Water ◽  
Chlorophyll A Fluorescence ◽  
Saline Water ◽  
Block Design ◽  
West Indian ◽  
N Fertilization ◽  
Nitrogen And Phosphorus ◽  
Gas Exchanges

This study aimed to evaluate the interaction between the fertilization with nitrogen (N) and phosphorus (P) and irrigation with saline water on the water relations, gas exchanges and chlorophyll a fluorescence in West Indian cherry in the vegetative stage. The study was carried out in protected environment, using lysimeters filled with clay loam Regolithic Neosol, with low P content, installed in a randomized block design, arranged in a factorial scheme with five levels of electrical conductivity of irrigation water (ECw), and four managements of P and N fertilization, with three replicates and one plant per plot. Along the experiment, water relations, gas exchanges and chlorophyll a fluorescence were evaluated in West Indian cherry plants. The increase in irrigation water salinity reduces the gas exchanges of the plants, but the increment of 40% in N supply increases the photosynthetic activity of West Indian cherry at recommendation levels higher than 100:100% of the P/N ratio, when irrigated with ECw of up to 3.0 dS m-1. The combined action of N and P, at doses of 140:140% N/P recommendation, increases leaf turgor in the plants, regardless of the ECw level. The increment of 40% in N dose reduces the effects of salinity on the initial fluorescence of chlorophyll a in West Indian cherry irrigated with up to 2.2 dS m-1.

scholarly journals Morfofisiologia de porta-enxerto de goiabeira irrigado com águas salinizadas sob doses de nitrogênio

2017 ◽  
Vol 8 (1) ◽  
pp. 32 ◽  
Author(s):  
EVANDRO MANOEL DA SILVA ◽  
REGINALDO GOMES NOBRE ◽  
LEANDRO DE PÁDUA SOUZA ◽  
RAILENE HÉRICA CARLOS ROCHA ARAÚJO ◽  
FRANCISCO WESLEY ALVES PINHEIRO ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Irrigation Water ◽  
Nitrogen Fertilization ◽  
Saline Water ◽  
Growth And Yield ◽  
Stress Effect ◽  
Saline Irrigation ◽  
New Techniques ◽  
Fruit Growing ◽  
N Dose

The irrigation with saline water reduces crop growth and yield, resulting in the need of new techniques that enable the use of this natural resource in fruit growing. In this sense, the objective of this study was to evaluate the effect of saline irrigation water associated with different nitrogen doses on guava rootstock cv. Paluma morphophysiology. The experiment was carried out in a completely randomized blocks design, testing 5 electrical conductivity of irrigation water - ECw (0.3, 1.1, 1.9, 2.7 and 3.5 dS m-1) and four nitrogen doses for fertilization (541.1; 773.0; 1004.9 and 1236.8 mg dm-3), in a 5x4 factorial, with four repetitions. The increase in the ECw from 0.3 dS m-1 negatively affected the morphophysiology of guava rootstock cv. Paluma, especially during the younger phase of the crop. The N dose of 541 mg dm-3 stimulated the increase of most morphophysiological variables in guava rootstock during the period studied. The nitrogen fertilization did not reduced the salt stress effect on the evaluated variables.

scholarly journals Gas exchanges and growth of passion fruit seedlings under salt stress and hydrogen peroxide1

2019 ◽  
Vol 49 ◽  
Author(s):  
André Alisson Rodrigues da Silva ◽  
Geovani Soares de Lima ◽  
Carlos Alberto Vieira de Azevedo ◽  
Hans Raj Gheyi ◽  
Leandro de Pádua Souza ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Hydrogen Peroxide ◽  
Salt Stress ◽  
Leaf Area ◽  
Irrigation Water ◽  
Saline Water ◽  
Block Design ◽  
Passion Fruit ◽  
Saline Stress ◽  
Gas Exchanges

ABSTRACT The semi-arid region of the Brazilian Northeast has adequate edaphoclimatic conditions for the passion fruit production, but the water used for irrigation commonly has high concentrations of salts that are harmful to the plant growth and development. A previous supply of hydrogen peroxide induces the acclimation of plants under saline stress conditions, reducing deleterious effects on their growth and physiology. This study aimed to evaluate the gas exchanges and growth of passion fruit as a function of irrigation with saline water and exogenous application of hydrogen peroxide. The experiment was carried out under greenhouse conditions, using a randomized block design, in a 4 x 4 factorial arrangement, being four levels of irrigation water electrical conductivity (0.7 dS m-1, 1.4 dS m-1, 2.1 dS m-1 and 2.8 dS m-1) and four hydrogen peroxide concentrations (0 µM, 25 µM, 50 µM and 75 µM), with four replicates and two plants per plot. The hydrogen peroxide application attenuated the deleterious effects of the irrigation water salinity on transpiration, CO2 assimilation rate, internal carbon concentration, plant height and leaf area of yellow passion fruit, at 60 days after sowing, with the concentration of 25 µM being the most efficient. Irrigation using water with electrical conductivity above 0.7 dS m-1 negatively affects the gas exchanges and growth of passion fruit, being the stomatal conductance and leaf area the most sensitive variables to the salt stress.

scholarly journals Saline water and nitrogen doses in the cultivation of West Indian cherry in the post-grafting phase

2020 ◽  
Vol 11 ◽  
pp. e3312
Author(s):  
Francisco Wesley Alves Pinheiro ◽  
Geovani Soares de Lima ◽  
Hans Raj Gheyi ◽  
Adaan Sudário Dias ◽  
Lauriane Almeda dos Anjos Soares ◽  
...  
Keyword(s):  
Chlorophyll A ◽  
Irrigation Water ◽  
Nitrogen Fertilization ◽  
Saline Water ◽  
West Indian ◽  
The West ◽  
Relative Growth ◽  
Saline Waters ◽  
Salinity Levels ◽  
Chlorophyll A And B

This study aimed to evaluate the photosynthetic pigments and growth of the West Indian cherry cv. BRS 366 Jaburu in the post-grafting phase as a function of the salinity levels of the irrigation water and nitrogen fertilization under greenhouse conditions, in the municipality of Campina Grande-PB. The study was performed in randomized blocks, consisting of two levels of electrical conductivity of irrigation water - ECw (0.8 and 4.5 dS m-1) and four nitrogen doses (70, 85, 100, and 115% of the recommended dose for the crop), with three replications. The synthesis of chlorophyll a and carotenoids in the West Indian cherry plants was inhibited with ECw of 4.5 dS m-1. Nitrogen fertilization in the estimated doses of 92 and 80% of N reduced the effects of salt stress on the contents of chlorophyll a and b in West Indian cherry plants, at 630 days after transplanting. The increment in nitrogen fertilization increases quadratically the absolute and relative growth rate of the diameter in the rootstock of the West Indian cherry plants under irrigation with saline waters.

scholarly journals Effect of Nitrogen Fertilization on the Growth and Quality of Tamarind Seedlings Irrigated with Saline Water

2019 ◽  
pp. 1-12
Author(s):  
Reynaldo Teodoro de Fatima ◽  
Maria de Lourdes Gomes da Silva ◽  
Jackson Silva Nobrega ◽  
Reginaldo Gomes Nobre ◽  
Pollyanna Freire Montenegro Agra ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Study Design ◽  
Irrigation Water ◽  
Nitrogen Fertilization ◽  
Saline Water ◽  
Block Design ◽  
Tamarindus Indica ◽  
Irrigation Water Salinity ◽  
Randomized Complete Block Design

Aims: The objective of this work was to evaluate the effect of nitrogen fertilization on the production of Tamarindus indica L. seedlings irrigated with saline water. Study Design:  A randomized complete block design was used in a 4 x 4 factorial scheme, whose factors were the electrical conductivity levels of the irrigation water. Place and Duration of Study: The work was conducted under protected environment conditions (greenhouse) at the Federal University of Campina Grande, Center for Agro-Food Sciences and Technology, Campus of Pombal-PB, Brazil, in the period from January and March 2017. Methodology: Effects of doses of 0, 100, 200 and 300 mg of nitrogen (N) dm-3 and electrical conductivity levels of the irrigation water (ECw) (0.3, 2.1, 3.7 and 5.2 dS m-1) on growth of Tamarindus indica L. have been studied. Results: The growth of the seedlings was reduced by the increase of the electrical conductivity of the irrigation water, however, irrigation with ECw water of 2.15 dS m-1, promotes acceptable reductions of 10% in the morphology of the tamarind tree. Conclusion: The use of nitrogen fertilization with urea did not attenuate the deleterious effects of irrigation water salinity or promoted improvements of the quality of the tamarind seedlings.

scholarly journals Gas exchanges and photochemical efficiency of West Indian cherry cultivated with saline water and potassium fertilization

2018 ◽  
Vol 22 (9) ◽  
pp. 628-633 ◽  
Author(s):  
Adaan S. Dias ◽  
Geovani S. de Lima ◽  
Francisco V. da S. Sá ◽  
Hans R. Gheyi ◽  
Lauriane A. dos A. Soares ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Sandy Loam ◽  
Saline Water ◽  
Photochemical Efficiency ◽  
West Indian ◽  
High Concentration ◽  
Gas Exchanges ◽  
Potassium Fertilization ◽  
Loam Soil ◽  
K Fertilization

ABSTRACT The problem of the lack of adequate water resources for agriculture has intensified in recent years, making it necessary to use waters with relatively high concentration of salts for the irrigation of crops all over the world. The objective of this study was to evaluate the influence of potassium (K) fertilization as a salt stress attenuator on gas exchanges and photochemical efficiency of West Indian cherry. The crop was cultivated under greenhouse conditions in the municipality of Campina Grande, PB, in lysimeters filled with 250 kg of sandy loam soil. Treatments were distributed in randomized blocks, in a 2 x 4 factorial scheme, with two levels of electrical conductivity of irrigation water - ECw (0.8 and 3.8 dS m-1) and four K doses (50, 75, 100 and 125% of recommendation), in which the dose corresponding to 100% was equal to 19.8 g of K2O, with three replicates and one plant per repetition. Seedlings of the West Indian cherry cultivar BRS 366-Jaburu, grafted onto a locally developed rootstock from the clonal garden of the EMBRAPA Tropical Agroindustry, Pacajus, CE, were used. Irrigation with salinized water (electrical conductivity of 3.8 dS m-1) compromised the gas exchange and the photochemical efficiency of West Indian cherry plants. Potassium fertilization was not efficient at reducing the stress caused by water salinity on West Indian cherry plants.

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

2021 ◽  
Vol 25 (3) ◽  
pp. 182-188
Author(s):  
Adriana dos S. Ferreira ◽  
Caio C. P. Leal ◽  
Bruno da S. Guirra ◽  
Salvador B. Torres ◽  
Marco Porceddu ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Irrigation Water ◽  
Saline Water ◽  
Block Design ◽  
Soluble Sugars ◽  
Dry Mass ◽  
Initial Growth ◽  
Saline Irrigation ◽  
Total Soluble Sugars ◽  
Chlorophylls A And B

ABSTRACT Saline irrigation water at high levels causes disturbance in the growth of more sensitive plants. The objective of this research was to evaluate the initial growth of Pityrocarpa moniliformis seedlings under different electrical conductivity in irrigation water through physiological and biochemical analyses. The experiment was conducted in a greenhouse with five water electrical conductivities (0.5, 2.0, 4.0, 6.0 and 8.0 dS m-1) and four repetitions of 20 plants each, arranged in a randomized block design. Application of the treatments with irrigation water containing NaCl began at 30 days after sowing. To determine the behaviour of the species, the following variables were analysed: stem diameter, plant height, number of leaves, leaf area, Dickson quality index, shoot dry mass, root dry mass and total dry mass, as well as the biochemical variables, such as the concentrations of total soluble sugars, free proline and chlorophylls a and b. The increase in irrigation water salinity hampered the growth of P. moniliformis seedlings, with electrical conductivity of 0.5 dS m-1 being the limit for maximum production. The results also indicated that the deleterious effects of salt stress on P. moniliformis seedlings variables increase in concentrations of proline, total soluble sugars and betaine glycine.

scholarly journals Growth and quality of soursop (Annona muricata, L.) seedlings under saline stress and hydrogen peroxide (H2O2)

2017 ◽  
pp. 1643-1649
Author(s):  
André Alisson Rodrigues da Silva ◽  
Luana Lucas de Sá Almeida Veloso ◽  
Geovani Soares de Lima ◽  
Carlos Alberto Vieira de Azevedo ◽  
Hans Raj Gheyi ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Hydrogen Peroxide ◽  
Irrigation Water ◽  
Saline Water ◽  
Saline Stress ◽  
Annona Muricata ◽  
Relative Growth ◽  
Saline Water Irrigation ◽  
Sensitive Variable

This study aimed to evaluate growth and quality of soursop seedlings cv. Morada Nova, as a function of saline water irrigation and exogenous applications of hydrogen peroxide (H2O2), under greenhouse conditions. The experimental design used was randomized blocks in 5 x 5 factorial scheme, corresponding to the combination of five levels of irrigation water electrical conductivity – ECw (0.7, 1.4, 2.1, 2.8 and 3.5 dS m-1) and five concentrations of hydrogen peroxide (0, 25, 50, 75 and 100 µM). The results showed that Hydrogen peroxide concentrations were applied by soaking the seed for 24 h and by spraying on all leaves of soursop seedlings. Irrigation water above electrical conductivity of 0.7 dS m-1 negatively affected growth and quality of soursop seedlings cv. Morada Nova. The dry phytomass of root was the most sensitive variable to saline stress. Hydrogen peroxide concentrations of 31 and 100 µM led to highest relative growth rate in leaf area and dry phytomass of leaves and stem, respectively. The quality of soursop seedlings cv. Morada Nova was not compromised by using water with electrical conductivity of 3.5 dS m-1 in irrigation.

scholarly journals Gas exchanges and growth of cotton cultivars under water salinity

2019 ◽  
Vol 23 (6) ◽  
pp. 393-399
Author(s):  
André A. R. da Silva ◽  
Luana L. de S. A. Veloso ◽  
Ronaldo do Nascimento ◽  
Elka C. S. Nascimento ◽  
Carlos V. de C. Bezerra ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Sandy Loam ◽  
Saline Water ◽  
Water Salinity ◽  
Gas Exchanges ◽  
Randomized Design ◽  
Irrigation Water Salinity ◽  
Completely Randomized Design ◽  
Semi Arid Region ◽  
Response To Water

ABSTRACT Indication of salt-tolerant cotton cultivars can make the agricultural exploitation with saline water irrigation feasible in the Brazilian semi-arid region. Thus, this study aimed to evaluate the gas exchanges and growth of cotton cultivars irrigated with saline water. The study was conducted in pots adapted as drainage lysimeters under greenhouse conditions, using a sandy loam Entisols as substrate. Treatments were distributed in completely randomized design, in 5 x 2 factorial arrangement, relative to five levels of irrigation water electrical conductivity - ECw (1.5, 3.0, 4.5, 6.0 and 7.5 dS m-1) and two cotton cultivars (BRS 368 RF and BRS Safira). Increase in irrigation water salinity inhibits the vegetative growth and gas exchanges of the cotton cultivars BRS Safira and BRS 368 RF. Leaf area and instantaneous carboxylation efficiency are the most affected variables. Physiological and growth performance of the cultivar BRS Safira in response to water salinity was higher than that of BRS 368 RF.

scholarly journals The impact of winter flooding with saline water on foliar carbon uptake and the volatile fraction of leaves and fruits of lemon (Citrus×limon) trees

2012 ◽  
Vol 39 (3) ◽  
pp. 199 ◽  
Author(s):  
Violeta Velikova ◽  
Tommaso La Mantia ◽  
Marco Lauteri ◽  
Marco Michelozzi ◽  
Isabel Nogues ◽  
...  
Keyword(s):  
Saline Water ◽  
Intercellular Co2 Concentration ◽  
Co2 Concentration ◽  
Volatile Fraction ◽  
Citrus Limon ◽  
Young Leaves ◽  
Quality Water ◽  
Winter Flooding ◽  
The Impact ◽  
Intercellular Co2

We investigated the consequences of recurrent winter flooding with saline water on a lemon (Citrus × limon (L.) Burm.f.) orchard, focussing on photosynthesis limitations and emission of secondary metabolites (isoprenoids) from leaves and fruits. Measurements were carried out immediately after flooding (December), at the end of winter (April) and after a dry summer in which plants were irrigated with optimal quality water (September). Photosynthesis was negatively affected by flooding. The effect was still visible at the end of winter, whereas the photosynthetic rate was fully recovered after summer, indicating an unexpected resilience capacity of flooded plants. Photosynthesis inhibition by flooding was not due to diffusive limitations to CO2 entry into the leaf, as indicated by measurements of stomatal conductance and intercellular CO2 concentration. Biochemical and photochemical limitations seemed to play a more important role in limiting the photosynthesis of flooded plants. In young leaves, characterised by high rates of mitochondrial respiration, respiratory rates were enhanced by flooding. Flooding transiently caused large and rapid emission of several volatile isoprenoids. Emission of limonene, the most abundant compound, was stimulated in the leaves, and in young and mature fruits. Flooding changed the blend of emitted isoprenoids, but only few changes were observed in the stored isoprenoids pool.

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