scholarly journals MUDAS DE TAMARINDEIRO IRRIGADAS COM ÁGUA SALINA EM SOLO SEM E COM BIOFERTILIZANTES

Irriga ◽  
2015 ◽  
Vol 20 (4) ◽  
pp. 730-744 ◽  
Author(s):  
Antonio João de Lima Neto ◽  
Lourival Ferreira Cavalcante ◽  
Járisson Cavalcante Nunes ◽  
Antônio Gustavo de Luna Souto ◽  
Francisco Thiago Coelho Bezerra
Keyword(s):  
Electrical Conductivity ◽  
Saline Water ◽  
Technical Information ◽  
Dry Mass ◽  
Agricultural Science ◽  
Water Salinity ◽  
Initial Growth ◽  
Tamarindus Indica ◽  
Science Center ◽  
Organic Input

MUDAS DE TAMARINDEIRO IRRIGADAS COM ÁGUA SALINA EM SOLO SEM E COM BIOFERTILIZANTES  ANTONIO JOÃO DE LIMA NETO1; LOURIVAL FERREIRA CAVALCANTE2; JÁRISSON CAVALCANTE NUNES3; ANTÔNIO GUSTAVO DE LUNA SOUTO1 E FRANCISCO THIAGO COELHO BEZERRA3 1Doutorandos do Programa de Pós-graduação em Fitotecnia, Universidade Federal de Viçosa/UFV, Viçosa, MG; [email protected]; [email protected]/CCA/UFPB, Areia, PB; pesquisador INCTSal; [email protected] do Programa de Pós-graduação em Agronomia, Universidade Federal da Paraíba/CCA/UFPB, Areia, PB; [email protected]; [email protected]  1 RESUMO No Brasil, informações científicas sobre a tolerância do tamarindeiro à salinidade são ainda pouco frequentes na literatura. Nesse sentido, o objetivo do trabalho foi avaliar o crescimento de mudas de tamarindo irrigadas com água salina em solo sem e com biofertilizantes. O experimento foi conduzido de outubro de 2012 a janeiro de 2013, em ambiente telado no Centro de Ciências Agrárias, Universidade Federal da Paraíba, Areia, PB, no delineamento em blocos casualizados, com esquema fatorial 5 × 3, referente a irrigação com água de condutividade elétrica 0,5; 1,5; 3,0; 4,5 e 6,0 dS m-1 no solo sem biofertilizante, com biofertilizante comum e com biofertilizante enriquecido quimicamente. Inicialmente foi avaliado o índice de velocidade de emergência e aos 100 dias após a semeadura, a condutividade elétrica do extrato de saturação do solo, altura e diâmetro caulinar, número de folhas, massa de matéria seca de folhas, caule e raízes das plantas. O aumento da concentração de saís na água de irrigação promoveu aumento da salinidade do solo e inibiu a germinação, o crescimento biométrico e a produção de biomassa seca das mudas de tamarindeiro. Ao final do experimento concluiu-se que a salinidade prejudica a germinação e o crescimento inicial das mudas de tamarindeiro, mas com menor severidade nos tratamentos com biofertilizante. Os biofertilizantes inibiram os efeitos negativos da salinidade da água às mudas, com superioridade do biofertilizante comum em relação ao biofertilizante enriquecido quimicamente. Palavras - chave: Tamarindus indica, insumos orgânicos líquidos, estresse salino em mudas  LIMA NETO, A. J.; CAVALCANTE, L. F; NUNES, J. C.; SOUTO, A. G. L.; BEZERRA, F. T. C.TAMARIND SEDDLINGS IRRIGATED WITH SALINE WATER IN SOIL WITHOUT AND WITH   BIOFERTILIZERS  2 ABSTRACT Technical information on the tolerance of   the tamarind tree to salinity is scarce in the literature.    Therefore, the objective of this study was to evaluate the growth of tamarind seedlings irrigated with saline water in soil without and with  biofertilizers.  The experiment was carried out from October 2012 to January 2013 in a greenhouse environment at the Agricultural Science Center at the Federal University of Paraíba, Areia, PB. Randomized blocks were used in a 5 x 3 factorial   design   referring to water irrigation of    0.5; 1.5; 3.0; 4.5 and 6.0 m-1  electrical conductivity in soil without biofertilizer, with average biofertilizer and chemically enriched biofertilizer.   Emergency speed index was initially evaluated following by   electrical conductivity of the soil saturation extract, height and stem diameter, number of leaves, dry mass of leaves, stem and roots of plants at 100 days after sowing.  Increased irrigation water salinity caused an increase in  soil salinity and inhibition of seed germination, biometric growth and production of dry biomass of tamarind seedlings.    Salinity affected germination and initial growth of tamarind seedlings, but this effect was less severe in the treatments with biofertilizers.  The biofertilizers inhibited the negative effects of water salinity on   the seedlings, more efficiently in the presence of the average biofertilizer as compared with   the chemically enriched biofertilizer.  Keywords:  Tamarindus indica, liquid organic input, salt stress in seedlings.  

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 Initial growth of carnauba (Copernicia prunifera) progenies under saline water

2019 ◽  
pp. 695-700
Author(s):  
Emanuel Lucas Bezerra Rocha ◽  
Poliana Coqueiro Dias Araujo
Keyword(s):  
Survival Rate ◽  
Root System ◽  
Irrigation Water ◽  
Saline Water ◽  
Block Design ◽  
Dry Mass ◽  
Water Salinity ◽  
Palm Tree ◽  
Initial Growth ◽  
Irrigation Water Salinity

The carnauba (Copernicia prunifera [Miller] H. E. Moore) is a palm tree that has multiple uses and is of great economic and social importance for extractive families in Northeast Brazil. The objective of this work is to analyze the effect of saline water on the production of different progenies of carnauba. The experiment is arranged in a 5 x 36 factorial scheme in a randomized complete block design, with five replications and five plants per replication. The treatments consist of five levels of irrigation water salinity (with commercial NaCl levels, free of iodine: 0, 25, 50, 75, and 100 mM) and 36 free-pollination progenies. The following characteristics are evaluated: foliar length (H), collecting diameter (DC), survival rate (TS), number of leaves (NF), dry shoot mass (MSPA), dry mass of the root system (MSSR), and dry mass ratio of the root system to the shoot. The results reveal similar behavior among the progenies for the evaluated characteristics. However, significance is observed for the parameters leaf length, collection diameter, and survival rate when the progenies are subjected to salinity above 9.6 dS m-1. Another significant factor is the accumulation of Na+ in the aerial and radicular parts in salinity levels of 7.1, 9.6, and 12.0 dS m-1, with the root system being the most affected site. Thus, the tested progenies exhibit similar behaviors in tolerance to irrigation water salinity. Since the carnauba can produce seedlings in water with electrical conductivity of up to 9.6 dS m-1, this species is characterized as a bioindicator of saline soils and is recommended for planting in degraded areas.

scholarly journals CRESCIMENTO INICIAL DO MARACUJAZEIRO AMARELO MANEJADO EM DOIS SUBSTRASTOS IRRIGADOS COM ÁGUA SALINA

Irriga ◽  
2018 ◽  
Vol 14 (4) ◽  
pp. 504-517 ◽  
Author(s):  
Lourival Ferreira Cavalcante ◽  
Geocleber Gomes de Sousa ◽  
Saulo Cabral Gondim ◽  
Fernando Luiz Figueiredo ◽  
Ícaro Herbert Lucena Cavalcante ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Mass Production ◽  
Saline Water ◽  
Water Levels ◽  
Water Salinity ◽  
Initial Growth ◽  
Passiflora Edulis ◽  
Irrigation Water Salinity ◽  
The One ◽  
Shoot Mass

CRESCIMENTO INICIAL DO MARACUJAZEIRO AMARELO MANEJADO EM DOIS SUBSTRASTOS IRRIGADOS COM ÁGUA SALINA   Lourival Ferreira Cavalcante1; Geocleber Gomes de Sousa2; Saulo Cabral Gondim3; Fernando Luiz Figueiredo1; Ítalo Herbert Lucena Cavalcante4; Adriana Araujo Diniz51Departamento de Solos e Engenharia Rural, Centro de Ciências Agrárias, Universidade Federal da Paraíba, Areia, PB,  [email protected] 2Solos e Nutrição de Plantas, Centro de Ciências Agrárias, Universidade Federal Ceará, Fortaleza, CE3Recursos Naturais, Universidade Federal de Campina Grande, Campina Grande, PBUniversidade Federal do Piauí, Bom Jesus, PI5Centro de Ciências Agrárias, Universidade Federal da Paraíba, Areia, PB  1 RESUMO             O trabalho foi realizado, no período de outubro a dezembro de 2006, em ambiente protegido do CCA/UFPB – Campus II, Areia, PB, com o objetivo de avaliar os efeitos da salinidade da água de irrigação sobre o crescimento inicial do maracujazeiro amarelo (Passiflora edulis f. flavicarpa Deg) cultivado em diferentes substratos. Os tratamentos foram distribuídos em blocos casualizados com três repetições e 12 unidades experimentais por parcela, arranjados num fatorial 5 x 2, referentes aos valores de condutividade elétrica da água de irrigação ( 0,4; 1,0; 2,0; 3,0 e 4,0 dS m-1 ) e dois substratos, sendo um mais arenoso (Solo Neossolo Regolítico) e o outro mais argiloso, constituído por uma mistura do Neossolo Regolítico (50% ) mais Nitossolo Vermelho eutrófico (50%). O aumento da salinidade da água de irrigação elevou expressivamente o caráter salino dos substratos, refletindo-se na redução do crescimento pelo diâmetro caulinar, área foliar, produção de biomassa das raízes e parte aérea das plantas em ambos os casos, porém com maior intensidade no substrato constituído pela mistura de parte iguais dos solos Neossolo Regolítco e Nitossolo Vermelho. UNITERMOS: Salinidade, irrigação, Passiflora edulis, condutividade elétrica  CAVALCANTE, L. F.; SOUSA, G. G. de; GONDIM, S. C.; FIGUEIREDO, F. L.; CAVALCANTE, Í. H. L.; DINIZ, A. A. INITIAL GROWTH OF YELLOW PASSION FRUIT CROPED IN TWO SUBSTRATS MANAGED WITH SALINE WATER IN TWO SUBSTRATES  2 ABSTRACT                                    This study was carried out, during  the period of October /2006 to December /2006, in green house conditions from Agrarian Sciences Center , Federal University of Paraíba, Paraíba State, Brazil, in order to evaluate the effects of water salinity on initial growth of yellow passion plants (Passiflora edulis f. flavicarpa Deg) cultivated in different substrates. Treatments were distributed in a randomized blocks experimental design with three repetitions and 12 experimental units per parcel, in a factorial arrangement 5 x 2, referring to electrical conductivity of irrigation water levels (0.4; 1.0; 2.0; 3.0 e 4.0 dS m-1) and two substrates, being a sandy (Entisol) and a clay, composed by a mixture of Entisol (50%) and Eutrophic Red Nitosol (50%). The increasing of irrigation water salinity expressively enhanced the saline index of the substrate, reflecting in a plant growth reduction related to stem diameter, leaf area, root mass production and shoot mass production of both substrates, but more expressive for the one with equal parts of Entisol and Red Nitosol. KEYWORDS: Salinity, irrigation, Passiflora edulis, electric conductivity

scholarly journals Use of Senna uniflora as Organic Fertilizer in the Production of Lettuce in the Brazilian Semiarid

2020 ◽  
Vol 12 (5) ◽  
pp. 48
Author(s):  
Paulo César Ferreira Linhares ◽  
Roberto Pequeno de Sousa ◽  
Janilson Pinheiro de Assis ◽  
Eudes de Almeida Cardoso ◽  
Joaquim Odilon Pereira ◽  
...  
Keyword(s):  
Mass Production ◽  
Organic Fertilizer ◽  
Dry Mass ◽  
Agricultural Science ◽  
Science Center ◽  
Plant Resources ◽  
Brazilian Semiarid ◽  
Great Relevance ◽  
Number Of Leaves ◽  
Semi Arid Region

The use of plant resources available on the farm, and of great relevance to the family farmers of the Northeastern semi-arid region, Brazil. The experiment was carried in the experimental area of the agricultural science center, Universidade Federal Rural do Semi-árido (UFERSA), Mossoró, Brazil, with the objective of evaluating use of Senna uniflora as organic fertilizer in the production of lettuce in the Brazilian semiarid, from October 2014 to February 2015. The experimental design of randomized complete blocks with the treatments arranged in 4 × 4 factorial scheme, with three replicates. The first factor consisted of amounts S. uniflora (0, 1.8, 3.6, and 5.4 kg m-2 of dry matter) with four incorporation times into the soil (0; 28; 56 and 84 days before transplanting lettuce). The transplanted lettuce cultivar went was the “Elba”. The evaluated characteristics were the following: plant height, diameter plant, number of leaves per plant, green mass production and dry mass production. The best agronomic efficiency was obtained with soil incorporation of 5.4 kg m-2 in the incorporation period of 56 days after transplanting, with phytomass production of 235.2 g plant-1. S. uniflora becomes a viable option to be used as an organic fertilizer in lettuce production.

scholarly journals Allometry and morphophysiology of papaya seedlings in a substrate with polymer under irrigation with saline water

2020 ◽  
Vol 11 ◽  
pp. e3339
Author(s):  
EXPEDITO CAVALCANTE NASCIMENTO NETO ◽  
Francisco Thiago Coelho Bezerra ◽  
Marlene Alexandrina Ferreira Bezerra ◽  
Walter Esfrain Pereira ◽  
Lourival Ferreira Cavalcante ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Leaf Area ◽  
Irrigation Water ◽  
Saline Water ◽  
Block Design ◽  
Dry Mass ◽  
Area Ratio ◽  
Irrigation Frequency ◽  
Randomized Block Design ◽  
Blade Area

The availability and quality of the irrigation water are among the limitations for the development of agriculture in the semiarid. Aiming at gathering information on these limitations, this work aimed to evaluate the association between a water-absorbing polymer and water salinity in irrigation frequencies, as well as container volumes on the allometric and morphophysiological indices of seedlings of the papaya (Carica papaya) cultivar ‘Sunrise Solo’. The treatments were obtained from the combination between the water-absorbing polymer (0.0; 0.2; 0.6; 1.0, and; 1.2 g dm-3), the electrical conductivity of the irrigation water (0.3; 1.1; 2.7; 4.3, and; 5.0 dS m-1), and irrigation frequencies (daily and alternate), plus two additional treatments (0.75 and 1.30 dm3) to study the effects of the container volume, distributed in a randomized block design. At 55 days after sowing, the following characteristics were evaluated: ratio between stem height and diameter; ratio between shoot and root dry matter; root density; leaf blade area; ratio between total leaf area and root dry mass; specific leaf area; leaf area ratio; leaf mass ratio; and Dickson quality index. The allometric and morphophysiological indices were damaged by the increase of water electrical conductivity and favored by the application of the polymer and a higher irrigation frequency. In the production of papaya seedlings, a daily irrigation frequency must be prioritized, using containers of 0.75 or 1.30 dm-3, water with electrical conductivity up to 2.6 and 1.9 dS m-1 when irrigated daily or in alternate days, respectively, and 0.6 g dm-3 of polymer.

scholarly journals Fertilização organomineral e águas salinas na produção de fitomassa de Capsicum annuum

2020 ◽  
Vol 1 (50) ◽  
pp. 179
Author(s):  
Francisco de Oliveira Mesquita ◽  
Antônio Gustavo Luna Souto ◽  
Adriana Araújo Diniz ◽  
Jackson de Mesquita Alves ◽  
Alex Serafim de Lima ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Experimental Design ◽  
Capsicum Annuum ◽  
Irrigation Water ◽  
Saline Water ◽  
Organic Input ◽  
Maximum Capacity ◽  
Polyethylene Bags ◽  
The Common

An experiment was carried out in a greenhouse, from march to april/2018, in Crato-CE to evaluate the effects of biofertilizers (common and chemically rich) in substrate irrigated with different saline compositions on phytomass production of yellow pepper seedlings, success variety (952). The experiment was developed using a material or substrate from the first 20 cm of a Red-yellow Latosol. The experimental design was completely randomized in a 5x3 factorial scheme, with three replications referring to the electrical conductivity values of the irrigation water: 0.5; 1.0; 2.0; 3.0 and 4.0 dS m-1 in the soil without the organic input; with common biofertilizer, and in soil with rich biofertilizer, totalizing 45 treatments, packed in black polyethylene bags with a maximum capacity of 3.0 kg. The biofertilizer, after dilution in a 3:1 ratio, was applied only once to 10% of the substrate volume two days before sowing. Irrigation with saline water affected the morphology and quality of yellow pepper seedlings (cv. Success) but with less intensity in the treatments that received the common and rich organic inputs, respectively.

scholarly journals Irrigation with saline water in soybean (Glycine max (L.) Merr.) in a soil with bovine biofertilizer

2018 ◽  
Vol 22 (9) ◽  
pp. 604-609 ◽  
Author(s):  
Geocleber G. de Sousa ◽  
Valdécio dos S. Rodrigues ◽  
Stallone da C. Soares ◽  
Ítalo N. Damasceno ◽  
Jamili N. Fiusa ◽  
...  
Keyword(s):  
Stomatal Conductance ◽  
Irrigation Water ◽  
Saline Water ◽  
Water Salinity ◽  
Saline Stress ◽  
Initial Growth ◽  
Gas Exchanges ◽  
Irrigation Water Salinity ◽  
Glycine Max L ◽  
Soybean Plants

ABSTRACT Salinity is a complex phenomenon that affects the metabolic processes of the plant, changing the physiological and biochemical parameters. In this context, the objective of this study was to evaluate the effect of irrigation water salinity on growth, biomass and gas exchanges in soybean crop in soil with and without biofertilizer. The experiment was carried out in a greenhouse at the experimental area of the Agrometeorological Station of the UFC, Fortaleza, CE, Brazil, from May to June 2016. The treatments were distributed in randomized blocks in a 5 × 2 factorial scheme, corresponding to the levels of irrigation water salinity: 0.8; 1.6; 2.4; 3.2 and 4.0 dS m-1, in soil without and with bovine biofertilizer, in five replicates. The following variables were evaluated: growth (plant height, number of leaves, stem diameter, and leaf area), biomass (leaf, root and total dry matter) and gas exchanges (photosynthesis, stomatal conductance and transpiration). Irrigation water salinity reduced photosynthesis, stomatal conductance and transpiration, but with less intensity in the plants that received bovine biofertilizer. The aerobically fermented bovine biofertilizer attenuates saline stress on the initial growth and biomass of soybean plants.

scholarly journals ÁGUA SALINA E BIOFERTILIZANTE DE ESTERCO BOVINO NA FORMAÇÃO E QUALIDADE DE MUDAS DE MARACUJAZEIRO AMARELO

Irriga ◽  
2016 ◽  
Vol 21 (4) ◽  
pp. 779-795 ◽  
Author(s):  
Sherly Aparecida da Silva Medeiros ◽  
Lourival Ferreira Cavalcante ◽  
Marlene Alexandrina Ferreira Bezerra ◽  
José Adeilson Medeiros do Nascimento ◽  
Francisco Thiago Coelho Bezerra ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Dry Mass ◽  
Cattle Manure ◽  
Passion Fruit ◽  
Water Salinity ◽  
Organic Input ◽  
Passiflora Edulis ◽  
Irrigation Water Salinity ◽  
Yellow Passion Fruit

ÁGUA SALINA E BIOFERTILIZANTE DE ESTERCO BOVINO NA FORMAÇÃO E QUALIDADE DE MUDAS DE MARACUJAZEIRO AMARELO SHERLY APARECIDA DA SILVA MEDEIROS1; LOURIVAL FERREIRA CAVALCANTE2; MARLENE ALEXANDRINA FERREIRA BEZERRA1; JOSÉ ADEILSON MEDEIROS DO NASCIMENTO3; FRANCISCO THIAGO COELHO BEZERRA4 E STELLA DA SILVA PRAZERES5 1Doutoranda PPGA/CCA/UFPB, email: [email protected];  [email protected] do PPGA/CCA/UFPB e Pesquisador do INCTSal, Fortaleza, CE. E-mail: [email protected] Professor Dr. IFCE/ Tianguá - CE. Email: [email protected] do PPGA/CCA/UFPB, Areia-PB. Email: bezerra­‑[email protected] Doutoranda do PPGCS/CCA/UFPB, Areia-PB. Email: stella­[email protected]  1 RESUMO No período de janeiro a março de 2013, um experimento foi conduzido, em estufa telada do Centro de Ciências Agrárias, Universidade Federal da Paraíba, Areia-PB, Brasil, para avaliar os efeitos da salinidade da água de irrigação e esterco líquido fermentado de bovino na formação e qualidade de mudas de maracujazeiro amarelo. O delineamento experimental foi em blocos casualizados, adotando o esquema fatorial 2 x 5 x 2, referente a dois genótipos de maracujazeiro amarelo (genótipo local tradicionalmente cultivado na cidade de Nova Floresta Paraíba, conhecido por Guinezinho e o genótipo BRS Gigante Amarelo), cinco níveis de salinidade da água de irrigação de 0,3; 1,0; 2,0; 3,0 e 4,0 dS m-1, no solo sem e com esterco líquido fermentado de bovino. As variáveis analisadas foram índice de velocidade de emergência, emergência, altura, diâmetro caulinar, área foliar, massa seca da raiz e da parte aérea das mudas e índice de qualidade de Dickson. O biofertilizante líquido de bovino proporcionou a formação de mudas de qualidade adequada ao plantio, em ambos os genótipos de maracujazeiro amarelo, comparadas às obtidas no solo sem o respectivo insumo, independentemente do nível de salinidade das águas de irrigação. Palavras-chave: Passiflora edulis, estresse salino, insumo orgânico.  MEDEIROS, S.A.S; CAVALCANTE, L.F.; BEZERRA, M.A.F.; NASCIMENTO, J.A. M.; BEZERRA, F.T.C; PRAZERES, S.S.SALINE WATER AND BOVINE MANURE BIOFERTILIZER IN THE FORMATION AND QUALITY OF YELLOW PASSION FRUIT SEEDLINGS   2 ABSTRACT                                              During the period of January to March 2013, an experiment was carried out in greenhouse conditions at the Agrarian Sciences Centre, Federal University of Paraíba, Areia municipality, Paraíba State, Brazil, in order to evaluate the effects of irrigation water salinity and liquid fermented cattle manure during formation and quality of yellow passion fruit seedlings. The experimental design was in randomized blocks adopting a factorial design 2 x 5 x 2 referring to two genotypes of yellow passion fruit (Local genotype known as Guinezinho and BRS Yellow Giant genotype), five levels of water salinity irrigation of 0.3; 1.0; 2.0; 3.0 and 4.0 dS m-1 in soil with and without fermented liquid cattle manure. The variables analyzed were emergency speed index, emergency, plants height, stalk diameter, root dry mass and shoot, leaf area, and Dickson quality index. The liquid cattle biofertilizer provided the formation of seedlings with suitable quality for plantation, in both  passion fruit genotypes compared to those obtained on the substrate without biofertilizer, regardless of the salinity of irrigation water. Keywords: Passiflora edulis, salt stress, organic input.

scholarly journals Yield of green beans subjected to continuous and pulse drip irrigation with saline water

2018 ◽  
Vol 22 (7) ◽  
pp. 476-481 ◽  
Author(s):  
Willian F. de Almeida ◽  
Vital P. da S. Paz ◽  
Ana P. C. de Jesus ◽  
Jucicléia S. da Silva ◽  
Karoline S. Gonçalves ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Water Use Efficiency ◽  
Water Use ◽  
Drip Irrigation ◽  
Saline Water ◽  
Green Bean ◽  
Water Salinity ◽  
Green Beans ◽  
Use Efficiency ◽  
Bean Yield

ABSTRACT In view of the imminent need for efficient water use and the search for adequate management techniques to reduce the effect of salinity on plants, a study was conducted to evaluate the effect of continuous and pulses drip irrigation with saline water on green bean yield and water use efficiency. The experiment was conducted in a greenhouse, in a completely randomized design, with treatments distributed in a 2 x 5 factorial arrangement. The first factor was type of drip irrigation, i.e., continuous or pulse, while the second factor was the levels of water salinity (electrical conductivity of 0.3, 1.5, 2.5, 3.5 and 4.5 dS m-1), with five replicates, and two plants per replicate, totaling 50 experimental units. The following variables were analysed: production of pods per pot, water use efficiency and the electrical conductivity of the soil saturation extract. According to the results, significant effect of the interaction and decreasing linear fits in response to salinity occurred for all variables studied. It was possible to note that pulse drip irrigation reduced the negative effects of irrigation water salinity on green bean yield and increased water use efficiency.

scholarly journals Initial Development of Safflower Submitted to Irrigation Water Salinity Levels

2018 ◽  
Vol 11 (1) ◽  
pp. 200
Author(s):  
William Fenner ◽  
Edna Maria Bonfim-Silva ◽  
Tonny José Araújo da Silva ◽  
Túlio Santos Martinez ◽  
Thiago Henrique Ferreira Matos Castañon ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Saline Water ◽  
Dry Mass ◽  
Water Salinity ◽  
Saline Stress ◽  
Root Volume ◽  
Initial Development ◽  
Irrigation Water Salinity ◽  
Salinity Levels ◽  
Plant Emergence

Safflower cultivation is an alternative to tropical cropping systems, with a good rusticity and some tolerance to saline stress in some cultivars. With the increase of irrigated areas around the world, salinization of the soil is an inherent concern, being the management of irrigation and cultivated species fundamental. The objective of this study was to evaluate the growth and initial development of safflower culture submitted to irrigation water salinity levels. The experiment was carried out in a greenhouse in a completely randomized design consisting of five irrigation water salinity levels (0, 2, 4, 6 and 8 dS m-1) and six replications. The saline solution was prepared using NaCl and measured with a conductivity meter. Plant height, number of leaves and stem diameter at 26 and 41 days after emergence, and shoot dry weight were evaluated; root volume; root dry mass; total dry mass and dry root/shoot mass ratio at 41 days after plant emergence. There was no visual influence of salinity levels in the evaluations at 26 days after plant emergence. However, 41 days after plant emergence, the increase in salinity levels promoted a decrease in all analyzed variables, except for root volume. Safflower does not tolerate irrigation with saline water. The damages occur from 2 dS m-1, but the largest reductions in the initial development of safflower occur from 6 to 8 dS m-1.

Sign in / Sign up

Export Citation Format

Share Document