scholarly journals Growth and fiber quality of colored cotton under salinity management strategies

2018 ◽  
Vol 22 (5) ◽  
pp. 332-337 ◽  
Author(s):  
Lauriane A. dos A. Soares ◽  
Pedro D. Fernandes ◽  
Geovani S. de Lima ◽  
Janivan F. Suassuna ◽  
Marcos E. B. Brito ◽  
...  
Keyword(s):  
Saline Water ◽  
Fiber Quality ◽  
Block Design ◽  
Irrigation Management ◽  
Management Strategies ◽  
Saline Stress ◽  
Agricultural Activity ◽  
Colored Cotton ◽  
Salinity Water

ABSTRACT Using saline water in the agricultural activity has become a reality in several regions of the world. Due to the increase in the demand for fresh water, it is necessary to use cultivation strategies and genotypes tolerant to saline stress to make the production viable. In this context, effects of irrigation management strategies with low-salinity water (0.8 dS m-1) and high-salinity water (9.0 dS m-1) were evaluated, varying the phenological stages of the plants, on the growth and fiber quality of colored cotton. Three cotton cultivars submitted to seven irrigation management strategies were used, constituting a 3 x 7 factorial scheme, in a randomized block design with three replicates, in plots and in protected environment. Saline water irrigation in the vegetative and flowering stages can be used in cotton cultivation with the lowest losses of growth, phytomass accumulation and fiber quality. Saline water application during boll development is detrimental to the growth and quality of cotton fiber. The genotype BRS Topázio is tolerant to water salinity, with better fiber length, regardless of the development stage.

scholarly journals Physiology and production of naturally-colored cotton under irrigation strategies using salinized water

2018 ◽  
Vol 53 (6) ◽  
pp. 746-755 ◽  
Author(s):  
Lauriane Almeida dos Anjos Soares ◽  
Pedro Dantas Fernandes ◽  
Geovani Soares de Lima ◽  
Marcos Eric Barbosa Brito ◽  
Ronaldo do Nascimento ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Developmental Stages ◽  
Block Design ◽  
Irrigation Management ◽  
Management Strategies ◽  
Cotton Production ◽  
Physiological Processes ◽  
Colored Cotton ◽  
Salinity Water ◽  
Naturally Colored Cotton

Abstract: The objective of this work was to evaluate the effects of irrigation management strategies, using low (0.8 dS m-1) and high (9.0 dS m-1) salinity water, on the physiological processes, production variables, and fiber productivity of naturally-colored cotton (Gossypium hirsutum) genotypes during different phenological stages. Three naturally-colored cotton cultivars (BRS Rubi, BRS Topázio, and BRS Safira) were subjected to seven irrigation management strategies, in a 3x7 factorial arrangement, in a randomized complete block design with three replicates. Plants were cultivated in pots in a protected environment. Gas exchange, chlorophyll a fluorescence, fiber production, and productivity and yield variables were evaluated. Salt stress causes greater reductions in gas exchange in natural cotton plants during the production stage. Plume cotton production is not compromised by the use of highly salinized water during the initial developmental stages of naturally-colored cotton.

scholarly journals Saline water irrigation strategies and potassium fertilization on physiology and fruit production of yellow passion fruit

2022 ◽  
Vol 26 (3) ◽  
pp. 180-189
Author(s):  
Geovani S. de Lima ◽  
Francisco W. A. Pinheiro ◽  
Hans R. Gheyi ◽  
Lauriane A. dos A. Soares ◽  
Pedro F. do N. Sousa ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Saline Water ◽  
Block Design ◽  
Irrigation Management ◽  
Management Strategies ◽  
Fruit Production ◽  
Passion Fruit ◽  
Saline Water Irrigation ◽  
Salinity Water ◽  
Yellow Passion Fruit

ABSTRACT The objective of this study was to evaluate the effects of saline water irrigation management strategies and potassium doses on the concentration of photosynthetic pigments, gas exchange, and fruit production of ‘BRS GA1’ yellow passion fruit. The experiment was carried out under field conditions using a randomized block design, with treatments based on a 6 × 2 factorial scheme, related to six management strategies for irrigation with saline water (irrigation with low-salinity water throughout the crop cycle-WS; irrigation with high-salinity water in the vegetative stage-VE; flowering stage-FL; fruiting stage-FR; and successively in vegetative/flowering stages-VE/FL and vegetative/fruiting stages-VE/FR) and two doses of potassium (60 and 100% of the recommendation), with four replicates. The dose of 100% recommendation corresponded to 345 g of K2O plant-1 year-1. High electrical conductivity irrigation water (4.0 dS m-1) was used in different phenological stages according to treatment, alternating with water of low electrical conductivity (1.3 dS m-1). The synthesis of chlorophyll a and b, stomatal conductance, instantaneous carboxylation efficiency and water use efficiency of ‘BRS GA1’ yellow passion fruit were reduced under irrigation with water of 4.0 dS m-1 in all strategies adopted. Fertilization with 60% of the K recommendation promoted greater number of fruits and yellow passion fruit yield. Irrigation with 4.0 dS m-1 water in the vegetative/flowering and flowering stages reduced the yield of yellow passion fruit.

scholarly journals MORFOFISIOLOGIA DE GENÓTIPOS DE GERGELIM SUBMETIDOS A DIFERENTES ESTRATÉGIAS DE USO DE ÁGUA SALINA

Irriga ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 42-55
Author(s):  
André Alisson Rodrigues da Silva ◽  
Cassiano Nogueira de Lacerda ◽  
Geovani Soares de Lima ◽  
Lauriane Almeida dos Anjos Soares ◽  
Hans Raj Gheyi ◽  
...  
Keyword(s):  
High Salinity ◽  
Saline Water ◽  
Block Design ◽  
Co2 Assimilation ◽  
Sesamum Indicum ◽  
Saline Stress ◽  
High Salinity Water ◽  
Flowering Phase ◽  
Salinity Water ◽  
Sesame Genotypes

MORFOFISIOLOGIA DE GENÓTIPOS DE GERGELIM SUBMETIDOS A DIFERENTES ESTRATÉGIAS DE USO DE ÁGUA SALINA     ANDRÉ ALISSON RODRIGUES DA SILVA1; CASSIANO NOGUEIRA DE LACERDA1; GEOVANI SOARES DE LIMA1; LAURIANE ALMEIDA DOS ANJOS SOARES1; HANS RAJ GHEYI1 E PEDRO DANTAS FERNANDES1   1 Unidade Acadêmica de Engenharia Agrícola, Universidade Federal de Campina Grande, UFCG, Rua Aprígio Veloso, 882 - Universitário, Campina Grande, PB. E-mail: [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected].     1 RESUMO   Objetivou-se com este trabalho avaliar as trocas gasosas e o acúmulo de fitomassas de genótipos de gergelim sob estratégias de uso de águas salinas. A pesquisa foi conduzida em casa de vegetação, em delineamento de blocos casualizados em arranjo fatorial 6 x 2, sendo seis estratégias de uso de águas salinas aplicadas nas diferentes fases fenológicas das plantas (SE-irrigação com água de baixa salinidade durante todo ciclo de cultivo; VE - irrigação com água de alta salinidade na fase vegetativa; FL - na fase de floração; FR na fase de frutificação; VE/FL - nas fases vegetativa/floração; VE/FR - nas fases vegetativa/frutificação) e dois genótipos de gergelim (BRS Seda e BRS Anahí), com quatro repetições. Foram aplicadas água com alta salinidade (2,7 dS m-1), em alternância com água com baixa concentração de sais (0,3 dS m-1), em fases diferentes do ciclo. A irrigação com água de 2,7 dS m-1 durante a fase de floração, e nas fases vegetativa/floração, não comprometeu a condutância estomática, transpiração e taxa de assimilação de CO2 dos genótipos de gergelim. A salinidade da água de 2,7 dS m-1 quando aplicada nas fases vegetativa/floração prejudicou o acúmulo de fitomassa pelas plantas de gergelim.   Palavras-chave: estresse salino, Sesamum indicum L., qualidade de água.     SILVA, A, A, R. da; LACERDA, C. N. de; LIMA, G. S. de; SOARES, L. A. dos A.; GHEYI, H. R.; FERNANDES, P.D. MORPHOPHYSIOLOGY OF SESAME GENOTYPES SUBMITTED TO DIFFERENT STRATEGIES FOR THE USE OF SALINE WATER     2 ABSTRACT   The objective of this study was to evaluate gas exchange and phytomass accumulation of sesame genotypes under different strategies for the use of saline water. The research was conducted in a greenhouse, in a randomized block design in a 6 x 2 factorial arrangement, with six strategies for the use of saline water applied in the different phenological phases of the plants (SE - irrigation with low salinity water throughout the cultivation cycle; VE - irrigation with high salinity water in the vegetative phase; FL - in the flowering phase; FR - in the fruiting phase; VE/FL - in the vegetative/flowering phase; VE/FR - in the phases vegetative/fruiting) and two sesame genotypes (BRS Seda and BRS Anahí), with four replicates. Water with high salinity (2.7 dS m-1) was used, alternating with water with low salt concentration (0.3 dS m-1), at different stages of the crop cycle. Irrigation with water of 2.7 dS m-1 during the flowering phase, and in the vegetative/flowering phases, did not compromise the stomatal conductance, transpiration and CO2 assimilation rate of sesame genotypes. The water salinity of 2.7 dS m-1 applied in the vegetative/flowering phases impaired the accumulation of phytomass by sesame plants.   Keywords: saline stress, Sesamum indicum L., water quality.  

scholarly journals Production and quality of watermelon fruits under salinity management strategies and nitrogen fertilization

2020 ◽  
Vol 41 (6supl2) ◽  
pp. 2923-2936
Author(s):  
Saulo Soares da Silva ◽  
◽  
Geovani Soares de Lima ◽  
Vera Lúcia Antunes de Lima ◽  
Hans Raj Gheyi ◽  
...  
Keyword(s):  
Salt Stress ◽  
Saline Water ◽  
Management Strategies ◽  
Development Stage ◽  
N Fertilization ◽  
Soluble Solids ◽  
Anthocyanin Content ◽  
Salinity Water ◽  
Salinity Management

The objective of this study was to evaluate the production and quality of ‘Sugar Baby’ watermelon fruits under different strategies of irrigation with saline water and nitrogen (N) fertilization in an experiment conducted in a protected environment in Campina Grande, Paraíba, Brazil. The experimental design adopted was in blocks with a 6 × 2 factorial scheme, corresponding to six strategies of irrigation with saline water applied at different phenological stages of the crop (SE irrigation with low-salinity water throughout the cycle; salt stress at the vegetative stage VE; vegetative and flowering VE/FL; flowering FL; fruiting FR; fruit maturation MAT) and two N doses (50 and 100% of the recommendation, equivalent to 50 and 100 mg of N kg-1 of soil) with five replicates. Two levels of irrigation water salinity were studied, one with low and the other with high electrical conductivity (ECw = 0.8 and 3.2 dS m-1). The salt stress applied at the vegetative and flowering stages reduced the contents of ascorbic acid and total soluble solids in ‘Sugar Baby’ watermelon fruits. The dose equivalent to 50% of the N recommendation promoted a greater fresh weight of watermelon fruits. Fertilization with 100% of N increased the hydrogen potential of watermelon fruits under salt stress at the vegetative and flowering stages. The anthocyanin content of watermelon fruits decreased under salt stress, regardless of the development stage; however, with 50% of recommendation of N, there was an increase in this variable.

scholarly journals Yield and ion content in maize irrigated with saline water in a continuous or alternating system

2012 ◽  
Vol 42 (10) ◽  
pp. 1731-1737 ◽  
Author(s):  
Felipe de Sousa Barbosa ◽  
Claudivan Feitosa de Lacerda ◽  
Hans Raj Gheyi ◽  
Gabriel Castro Farias ◽  
Ricardo José da Costa Silva Júnior ◽  
...  
Keyword(s):  
High Salinity ◽  
Saline Water ◽  
Block Design ◽  
Management Strategies ◽  
Growth Yield ◽  
Maize Yield ◽  
High Salinity Water ◽  
Low Salinity ◽  
Salinity Water ◽  
Maize Plants

Irrigation with water containing salt in excess can affect crop development. However, management strategies can be used in order to reduce the impacts of salinity, providing increased efficiency in the use of good quality water. The objective of this research was to study the effects of use of high salinity water for irrigation, in continuous or cyclic manner, on vegetative growth, yield, and accumulation of ions in maize plants. Two experiments were conducted during the months from October to January of the years 2008/2009 and 2009/2010, in the same area, adopting a completely randomized block design with four replications. Irrigation was performed with three types of water with electrical conductivities (ECw) of 0.8 (A1), 2.25 (A2) and 4.5 (A3) dS m-1, combined in seven treatments including the control with low salinity water (A1) throughout the crop cycle (T1). Saline waters (A2 and A3) were applied continuously (T2 and T5) or in a cyclic way, the latter being formed by six irrigations with A1 water followed by six irrigations by eitherA2 or A3 water, starting with A1 at sowing (T3 and T6) or 6 irrigations with A2 or A3 water followed by 6 irrigations with A1 water (T4 and T7) . The use of low and high salinity water resulted in lower accumulation of potentially toxic ions (Na and Cl) and improvement in the Na/K balance in the shoots of maize plants. Application of saline water in a cyclic way also allows the substitution of about 50% of water of low salinity in irrigation, without negative impacts on maize yield.

scholarly journals POTASSIUM DOES NOT ATTENUATE SALT STRESS IN YELLOW PASSION FRUIT UNDER IRRIGATION MANAGEMENT STRATEGIES

2020 ◽  
Vol 33 (4) ◽  
pp. 1082-1091
Author(s):  
GEOVANI SOARES DE LIMA ◽  
JAILSON BATISTA DA SILVA ◽  
FRANCISCO WESLEY ALVES PINHEIRO ◽  
LAURIANE ALMEIDA DOS ANJOS SOARES ◽  
HANS RAJ GHEYI
Keyword(s):  
Saline Water ◽  
Irrigation Management ◽  
Management Strategies ◽  
Passion Fruit ◽  
High Salinity Water ◽  
Low Salinity ◽  
Low Salinity Water ◽  
Fruiting Stage ◽  
Salinity Water ◽  
Yellow Passion Fruit

ABSTRACT The objective of this study was to evaluate the gas exchange, growth and production of yellow passion fruit cv. BRS GA1, as a function of irrigation management strategies with saline water and potassium doses. The experiment was conducted under field conditions in São Domingos, PB, Brazil. A randomized block design was used in a 6 * 2 factorial scheme. The treatments consisted of six strategies of irrigation with saline waters (irrigation with low-salinity water throughout the crop cycle - SE; irrigation with high-salinity water in the vegetative stage - VE; flowering stage - FL; fruiting stage - FR; in the successive vegetative/flowering stages - VE/FL; vegetative/fruiting stages - VE/FR) and two doses of potassium (100 and 130% of the K2O recommendation), with four replicates and four plants per plot. The 100% dose corresponded to 60 g of K 2O plant-1 year-1. The effects of using high-salinity water (3.2 dS m-1) alternated with low-salinity water (1.3 dS m-1) were evaluated in different stages of the cultivation cycle. Irrigation with saline water in the fruiting stage promoted an increase in intercellular CO2 concentration and decrease in CO2 assimilation, with effects of non-stomatal origin standing out as limiting factors of photosynthetic efficiency. The highest CO 2 assimilation rate in plants subjected to water salinity of 1.3 dS m-1 throughout the cycle resulted in increments in the number of fruits and in the production per plant of the passion fruit cv. BRS GA1.

scholarly journals Frequency of irrigation with saline water in sugar-apple seedlings produced on substrate with polymer

2018 ◽  
Vol 22 (12) ◽  
pp. 825-830
Author(s):  
Aldeir R. Silva ◽  
Francisco T. C. Bezerra ◽  
Lourival F. Cavalcante ◽  
Walter E. Pereira ◽  
Leandro M. Araújo ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Irrigation Water ◽  
Saline Water ◽  
Block Design ◽  
Irrigation Management ◽  
Irrigation Frequency ◽  
Irrigation Water Salinity ◽  
Randomized Complete Block Design ◽  
Number Of Leaves

ABSTRACT The objective of this work was to evaluate the growth of sugar-apple seedlings under irrigation management with saline water in a substrate with soil amendment. Treatments were obtained from the arrangement between polymer doses (0, 0.2, 0.6, 1.0 and 1.2 g dm-3) and levels of irrigation water electrical conductivity (0.3, 1.1, 2.7, 4.3 and 5.0 dS m-1), associated with irrigation frequencies (daily and every alternate day), and two additional treatments to evaluate container volume (1.30 and 0.75 dm3), using a randomized complete block design, with four replicates. At 120 days after sowing, the variables substrate salinity, stem diameter, plant height, number of leaves and Dickson quality index were determined. Data were submitted to analyses of variance, regression and contrast. Substrate salinity increased with the increase in irrigation water electrical conductivity and polymer doses. Growth and quality of the seedlings were reduced with increasing irrigation water salinity, and highest values of the variables were obtained in seedlings under daily irrigation. Container with larger volume led to higher growth. The use of hydrated polymer at the adopted levels had no effect on growth and quality of seedlings, requiring further studies. To produce sugar-apple seedlings with better quality, irrigation frequency should be daily and water electrical conductivity should be lower than 2 dS m-1.

scholarly journals Growth and gas exchange of corn under salt stress and nitrogen doses

2021 ◽  
Vol 25 (3) ◽  
pp. 174-181
Author(s):  
Henderson C. Sousa ◽  
Geocleber G. de Sousa ◽  
Carla I. N. Lessa ◽  
Antonio F. da S. Lima ◽  
Rute M. R. Ribeiro ◽  
...  
Keyword(s):  
Stomatal Conductance ◽  
Gas Exchange ◽  
Leaf Area ◽  
Plant Height ◽  
Saline Water ◽  
Saline Stress ◽  
Low Salinity ◽  
Salinity Water ◽  
Hybrid Maize ◽  
The University

ABSTRACT The excess of salts can affect several processes in the crops, and nitrogen (N) can attenuate the depressive effect of salinity. The objective was to evaluate the influence of nitrogen doses on the growth and gas exchange of corn crop irrigated with saline water. The experiment was conducted from June to September 2019 at the University of International Integration of Afro-Brazilian Lusophony, Redenção, CE, Brazil. The experimental design was completely randomized, in a 2 x 3 factorial scheme (supply water of 0.3 dS m-1 and saline solution of 3.0 dS m-1) and three nitrogen doses, 0, 80, and 160 kg ha-1, corresponding to 0, 50, and 100% of the recommended dose respectively, with six repetitions. At 30 and 45 days after sowing (DAS), plant height, leaf area, number of leaves, photosynthesis, transpiration, and stomatal conductance were evaluated. Saline stress affects plant height, leaf area, photosynthesis, transpiration, and conductance at 30 DAS. The doses of 80 and 160 kg ha-1 provide greater performance in plant height, leaf area, photosynthesis, transpiration, and conductance at 30 DAS. The use of low salinity water and doses of 80 and 160 kg ha-1 were more efficient in terms of plant height, leaf area, photosynthesis, transpiration, and conductance at 45 DAS. The dose of 160 kg ha-1 of N attenuates the harmful effects of salts in AG 1051 hybrid maize plants, providing higher values of photosynthesis, transpiration, and stomatal conductance at 45 DAS when irrigated with water of 3.0 dS m-1.

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 Performance of processing tomatoes under different supply levels of crop evapotranspiration

2018 ◽  
Vol 36 (3) ◽  
pp. 299-305
Author(s):  
Cícero J Silva ◽  
Nadson C Pontes ◽  
Adelmo Golynski ◽  
Marcos B Braga ◽  
Alice M Quezado-Duval ◽  
...  
Keyword(s):  
Irrigation System ◽  
Block Design ◽  
Water Productivity ◽  
Irrigation Management ◽  
Crop Evapotranspiration ◽  
Production Chain ◽  
Crop Cycle ◽  
Growing Conditions ◽  
Irrigation Levels

ABSTRACT Irrigation management is essential to promote appropriate plant growth and guarantee production and quality of the tomatoes for processing, increases the efficiency of nutrients use and contributes to ensure the sustainability of the production chain. This study was installed to evaluate productive performance of two processing tomato hybrids submitted to five water depths under drip irrigation system. Five levels of crop evapotranspiration (ETc) replacement (60%, 100%, 140%, 180% and 220%) and two tomato hybrids (BRS Sena and H 9992) were tested. The experimental design was a 5×2 factorial arranged in randomized complete block design with four replications. During the crop cycle, hybrids BRS Sena and H 9992 needed 692.20 and 418.43 mm of water, yielding 80 and 44.06 t ha-1, respectively. For both hybrids, the higher water productivity was observed when lower levels of irrigation were applied. Higher productivities and pulp yields of ‘BRS Sena’ and ‘H 9992’ were noticed when replacing 150-166% and 99-101% ETc, respectively. We observed that improving the performance of processing hybrid tomatoes is possible by adjusting irrigation levels for each hybrid according to growing conditions.

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