scholarly journals Growth and mineral nutrition of baru (Dipteryx alata Vogel) in nutrient solution

2016 ◽  
Vol 20 (12) ◽  
pp. 1101-1106 ◽  
Author(s):  
Diana S. N. da Silva ◽  
Nelson Venturin ◽  
Cleber L. Rodas ◽  
Renato L. G. Macedo ◽  
Regis P. Venturin ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Dry Matter ◽  
Morphological Characteristics ◽  
Initial Growth ◽  
Root Shoot Ratio ◽  
Limiting Nutrients ◽  
Number Of Leaves ◽  
Collar Diameter ◽  
Nutrient Solutions ◽  
Dipteryx Alata

ABSTRACT This study analyzed the initial growth of baru in nutrient solutions with individualized omission of mineral nutrients in greenhouse. The experimental design was completely randomized with 13 treatments and four replicates: Complete Hoagland & Arnon solution and with individualized omissions of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn, Mo and Zn. At 60 days the following morphological characteristics were evaluated: height, root collar diameter, number of leaves and number of leaflets. In addition, the Dickson quality index and root/shoot ratio were calculated and root dry matter, shoot dry matter and the contents and accumulations of nutrients in the shoots of the seedlings were analyzed. Analysis of variance of the collected data was performed using the computational program Sisvar. The growth of baru seedlings, except for the variable height, was influenced by the omission of nutrients in the nutrient solution and the main limiting nutrients are K, Ca, Mg, Fe, Mn, and Mo. The absorption of nutrients by baru plants occurs differently under the individualized nutritional omissions applied to the nutrient solution.

scholarly journals Plant growth and symptomatology of macronutrient deficiencies in cowpea plants

2018 ◽  
Vol 9 (3) ◽  
pp. 503-508
Author(s):  
Franklin Eduardo Melo Santiago ◽  
Flávia Louzeiro de Aguiar Santiago ◽  
José Ferreira Lustosa Filho ◽  
Rafael Felippe Ratke
Keyword(s):  
Nutrient Solution ◽  
Morphological Changes ◽  
Nutritional Deficiencies ◽  
Initial Growth ◽  
Visual Symptoms ◽  
Cowpea Cultivars ◽  
The North ◽  
Limiting Nutrients ◽  
Number Of Leaves ◽  
Nutrient Solutions

Cowpea is a widely grown annual legume in the North and Northeast regions of Brazil. It is one of the main sources of protein and income for the populations of these regions. However, few studies have shown the nutritional requirements, and symptomatology of nutritional deficiencies of cowpea cultivars. In this context, the objective of this work was to evaluate the initial growth and symptomatology of macronutrient deficiencies in cowpea plants of the BR17-Gurguéia cultivar. A randomized complete experimental design with three replications was used, with seven treatments consisted of nutrient solutions containing no N, P, K, Ca, Mg, or S, and a nutrient solution containing all macro and micronutrients as control, using one plant per plot. Plant height, stem diameter, number of leaves, leaf area, root volume, and shoot and root dry weights were evaluated, and visual symptoms of nutritional deficiencies were described at 30 days after planting. Nitrogen, phosphorus, potassium, calcium, and magnesium were the most limiting nutrients for the vegetative growth and biomass production of cowpea up to 30 days of cultivation. The absence of these elements in the nutrient solution caused morphological changes and visual symptoms that are characteristic of the nutritional deficiency of these nutrients.

scholarly journals Nutrient solution and substrates for ‘cedro doce’ (Pochota fendleri) seedling production

2017 ◽  
Vol 21 (4) ◽  
pp. 227-231
Author(s):  
Oscar J. Smiderle ◽  
Aline G. Souza ◽  
Cassia A. Pedrozo ◽  
Christinny G. B. Lima
Keyword(s):  
Chlorophyll A ◽  
Nutrient Solution ◽  
Dry Matter ◽  
Soil Nutrient ◽  
Nutritional Requirement ◽  
Sand Soil ◽  
Root Shoot Ratio ◽  
Chlorophyll A And B ◽  
Collar Diameter ◽  
Macro And Micronutrients

ABSTRACT This study assessed the effect of different substrates and addition of nutrient solution on the production of Pochota fendleri seedlings, leaf contents of macro and micronutrients and chlorophyll a and b. The experimental design was completely randomized, in a 3 x 2 factorial scheme, with four replicates. The factors were three substrates, with or without addition of nutrient solution, composing six treatments: (T1) = sand; (T2) = soil; (T3) = sand + soil (1:1); (T4) = sand + nutrient solution; (T5) = soil + nutrient solution; (T6) = sand + soil + nutrient solution. Growth characteristics (height, collar diameter, shoot dry matter, root dry matter, root/shoot ratio and total dry matter) and contents of macro- and micronutrients and chlorophyll a and b were evaluated. The use of nutrient solution reduces the time to obtain seedlings of Pochota fendleri, and it is important for proper growth and quality of seedlings. The sequence of nutritional requirement presented by Pochota fendleri seedlings in three substrates with addition of nutrient solution follows the descending order: macronutrients (N > Ca > K > Mg > P > S) and micronutrients (Fe > Mn > B > Zn > Cu).

scholarly journals Vegetative growth of grain sorghum in response to phosphorus nutrition

2002 ◽  
Vol 59 (4) ◽  
pp. 771-776 ◽  
Author(s):  
Rafael Camacho ◽  
Eurípedes Malavolta ◽  
José Guerrero-Alves ◽  
Tomás Camacho
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Nutrient Solution ◽  
Dry Matter ◽  
Morphological Characteristics ◽  
Grain Sorghum ◽  
Growth Patterns ◽  
P Concentration ◽  
Number Of Leaves ◽  
Total P

Morphological variables such as phytomass, plant height, leaf area, number of leaves, have been used to express the influence of mineral nutrients on plant growth patterns, since the vegetative development responds, in general, favorably to fertilizer applications. This work evaluates the effect of P on both, some morphological characteristics and total [P] in the shoot of eight grain sorghum (Sorghum bicolor L. Moench) genotypes. Genetic materials were grown in nutrient solution under three concentrations of P (0; 0.5 and 1.0 mmol L-1). Plants were harvested 41 days after sowing, and leaf area per plant (LA), number of leaves (NL) per plant, root volume (RV), plant height (PH), root dry matter (RDM), shoot dry matter (SDM), total dry matter (TDM), RDM/SDM ratio, and total P concentration in shoot were determined. RDM/SDM was high for treatment P(0) and diminished about twice when P was added. Lack of applied P decreased the final NL and LA. Shoot [P] was positively correlated with solution [P], but the increase in P concentration in the nutrient solution from 0.5 to 1.0 mmol L-1 had a negative effect on growth. Both under deficiency and sufficiency conditions of P, Himeca-101 showed the best behavior in terms of RDM, SDM, TDM, RV, LA and NL. LA and PH were identified as the best indicators to predict dry matter yield of sorghum plants under P supply conditions.

scholarly journals Silicon attenuates calcium deficiency by increasing ascorbic acid content, growth and quality of cabbage leaves

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dalila Lopes da Silva ◽  
Renato de Mello Prado ◽  
Luis Felipe Lata Tenesaca ◽  
José Lucas Farias da Silva ◽  
Ben-Hur Mattiuz
Keyword(s):  
Ascorbic Acid ◽  
Nutrient Solution ◽  
Acid Content ◽  
Dry Matter ◽  
Ascorbic Acid Content ◽  
Calcium Deficiency ◽  
Ca Deficiency ◽  
Leaf Water Loss ◽  
Nutrient Solutions

AbstractCalcium (Ca) deficiency in cabbage plants induces oxidative damage, hampering growth and decreasing quality, however, it is hypothesized that silicon (Si) added to the nutrient solution may alleviate crop losses. Therefore, this study aims at evaluating whether silicon supplied in the nutrient solution reduces, in fact, the calcium deficiency effects on cabbage plants. In a greenhouse, cabbage plants were grown using nutrient solutions with Ca sufficiency and Ca deficiency (5 mM) without and with added silicon (2.5 mM), arranged as a 2 × 2 factorial in randomized blocks, with five replications. At 91 days after transplanting, the plants were harvested for biological evaluations. In the treatment without added Si, Ca deficiency promoted oxidative stress, low antioxidant content, decreased dry matter, and lower quality leaf. On the other hand, added Si attenuated Ca deficiency in cabbage by decreasing cell extravasation while increasing both ascorbic acid content and fresh and dry matter, providing firmer leaves due to diminished leaf water loss after harvesting. We highlighted the agronomic importance of Si added to the nutrient solution, especially in crops at risk of Ca deficiency.

scholarly journals Viability of Biofertilizer Produced by an Indian Biodigester Prototype Applied to Sunflower Plants

2017 ◽  
Vol 9 (10) ◽  
pp. 253
Author(s):  
Luciano Fernandes Moura ◽  
Pedro Felipe Sousa Teixeira ◽  
Franklin Aragão Gondim ◽  
Francisco Holanda Nunes Junior ◽  
Rifandreo Monteiro Barbosa ◽  
...  
Keyword(s):  
Dry Matter ◽  
Energy Use ◽  
Polynomial Regression ◽  
Growth Parameters ◽  
Low Cost ◽  
Control Group ◽  
Initial Growth ◽  
Sunflower Crop ◽  
Number Of Leaves ◽  
Relative Chlorophyll Content

Biodigesters have been used to convert biomass into biogas and biofertilizers. This energy use has been important for the reduction of solid waste pollution in the environment. This work aims to analyse the viability of the use of pig biofertilizer produced by an Indian biodigester prototype, monitored by a data acquisition system. The biodigester used was an Indian prototype built on a low cost material that is easy to acquire (polyvinyl chloride-PVC). After the biofertilizer production, we tested its efficiency and viability under conditions of vegetation house in the cultivation of sunflower plants. The experimental design was completely randomized in a factorial arrangement with 4 concentrations of biofertilizer (0, 40, 80 and 120 kg N ha-1) × 4 harvest periods (14, 21, 25 and 29 days after sowing). We evaluated biometric and vigor parameters by measurements of stem diameter, height of the aerial part, number of leaves and production of fresh and dry matter of roots, aerial and total parts, as well as the relative chlorophyll content. We performed the experiment with five repetitions using two plants each and we submitted the data to analysis of variance (ANOVA) and polynomial regression using the statistical software Sisvar 5.4. The functional Indian biodigester prototype produced a biofertilizer of excellent quality and viability as a biofertilizer for the initial growth of sunflower plants. The biofertilizer served as a nutritional source in the sunflower crop, since it provided increases in all the growth parameters analyzed in relation to the control group (plants in the absence of biofertilizer), especially in the concentration of 120 kg N ha-1.

scholarly journals DESENVOLVIMENTO INICIAL DE MUDAS DE BARUZEIRO (Dipteryx alata Vog) EM FUNÇÃO DE SUSBTRATOS E LÂMINAS DE IRRIGAÇÃO

Irriga ◽  
2017 ◽  
Vol 22 (2) ◽  
pp. 288-300 ◽  
Author(s):  
Henrique Fonseca Elias de Oliveira ◽  
Cléber Luiz De Souza ◽  
Danilo Vieira Félix ◽  
Leandro Da Silva Fernandes ◽  
Polliany Santos Xavier ◽  
...  
Keyword(s):  
Quality Index ◽  
Dry Matter ◽  
Block Design ◽  
Initial Growth ◽  
Aerial Portion ◽  
Randomized Block Design ◽  
System Length ◽  
E Mail ◽  
Dickson Quality Index ◽  
Dipteryx Alata

DESENVOLVIMENTO INICIAL DE MUDAS DE BARUZEIRO (Dipteryx alata Vog) EM FUNÇÃO DE SUSBTRATOS E LÂMINAS DE IRRIGAÇÃO  HENRIQUE FONSECA ELIAS DE OLIVEIRA1; CLÉBER LUIZ DE SOUZA2; DANILO VIEIRA FÉLIX2; LEANDRO DA SILVA FERNANDES2; POLLIANY SANTOS XAVIER2 E LUCAS MAGALHÃES ALVES2 1Eng. Agrícola, Doutor, Instituto Federal Goiano, GO 154, km 03, CEP 76300-000, Ceres – GO, e-mail: [email protected]ônomo (a), Instituto Federal Goiano, GO 154, km 03, CEP 76300-000, Ceres – GO, e-mail: [email protected], [email protected], [email protected], [email protected], [email protected]  1 RESUMO O presente estudo objetivou avaliar o crescimento inicial de plantas de baruzeiro, sob substratos e lâminas de irrigação e identificar o manejo que resulte em condições ideais para a produção de mudas desta espécie. Foi implantado um experimento no delineamento em blocos ao acaso, com quatro repetições, em parcelas subdivididas no esquema 5 x 4, sendo as parcelas compostas por lâminas de irrigação diárias (6, 8, 10, 12 e 14 mm) e as subparcelas substratos: S1 - 100% Latossolo vermelho; S2 - 50% Latossolo vermelho e 50% Areia; S3 - 45% Latossolo vermelho, 45% Areia e 10% Esterco Bovino Curtido e S4 - Substrato comercial Basaplant®. As características avaliadas foram altura de planta, diâmetro de caule, número de folíolos, comprimento de raiz, massa seca de raiz, massa seca de parte aérea, massa seca de muda, relação das massas secas de raiz e parte aérea e índice de qualidade de Dickson. Aos 200 dias após a semeadura (DAS) o substrato S1 proporcionou maior crescimento e qualidade às plantas de baruzeiro, dado pelo Índice de Qualidade de Dickson (IQD) obtido de 1,05, assim como a lâmina de 14 mm dia-1, a qual obteve IQD igual 0,98, diferindo estatisticamente das demais lâminas avaliadas. Palavras-chave: gotejamento, características produtivas, Índice de Qualidade de Dickson.  OLIVEIRA, H. F. E.; SOUZA, C. L.; FÉLIX, D. V.; FERNANDES L. S.; XAVIER, P. S.; ALVES, L. M.INITIAL DEVELOPMENT OF BARUZEIRO (Dipteryx alata Vog) SEEDLING AS FUNCTION OF SUBSTRATES AND IRRIGATIONS LEVELS  2 ABSTRACT This study aimed to evaluate the initial growth of baruzeiro plants, under substrates and irrigation levels and identify the management that results in ideal conditions for the production of seedlings of this species. The experiment was installed in a randomized block design, with four replications, in split-plot, in the scheme 4 x 5, with plots composed of five daily irrigations levels and four subplots substrates: S1 - 100% OXISOL RED; S2 - 50% OXISOL RED and 50% sand; S3 - 45% OXISOL RED, 45% sand, and 10% of tanned manure and S4 - Commercial Substrate Basaplant. The five daily watering (6, 8, 10, 12 and 14 mm) make up the subplot. The characteristics assessed were plant height, stem diameter, number of leaflets, root system length, dry matter mass of roots, dry matter mass of aerial portion, dry matter  mass of seedling, ratio between roots dry matter mass and aerial portion and seedling quality. At 200 DAS substrate S1 provided greater growth and quality to baruzeiro plants, given by the Dickson Quality Index (DQI) obtained of 1.05, as well as the irrigation depth of 14 mm day-1, once it obtained DQI equal to 0.98, statistically differing from the other irrigation depths assessed. Keywords: drip irrigation, productive characteristics, Dickson Quality Index.

scholarly journals Salinity-induced changes in the morphology, physiology, and anatomy of seeds and seedlings of smooth narra (Pterocarpus indicus Willd. f. indicus)

2020 ◽  
Vol 21 (11) ◽  
Author(s):  
MARJORIE M. MANIPOL ◽  
CRUSTY E. TINIO ◽  
LERMA SJ. MALDIA ◽  
Marilyn S. Combalicer
Keyword(s):  
Native Species ◽  
Root Nodules ◽  
Cell Number ◽  
The Philippines ◽  
Soil Conditions ◽  
Root Shoot Ratio ◽  
Number Of Leaves ◽  
Collar Diameter ◽  
Induced Changes ◽  
Harsh Conditions

Abstract. Manipol MM, Tinio CE, Maldia LSJ, Combalicer MS. 2020. Salinity-induced changes in the morphology, physiology, and anatomy of seeds and seedlings of smooth narra (Pterocarpus indicus Willd. f. indicus). Biodiversitas 21: 5146-5154. Pterocarpus indicus Willd. forma indicus is a commonly planted species for reforestation in the Philippines regardless of the area’s condition. Since the species could survive in areas even with harsh conditions, it was hypothesized that the species may also thrive in areas having substantial amount of salt, especially during its early growth. This study assessed the morphological, physiological, and anatomical responses of seeds and seedlings of P. indicus Willd. f. indicus (Fabaceae), a native species in the Philippines to varying salt (NaCl) concentrations (0-300 mM). Based on the results, P. indicus f. indicus grew significantly in terms of height, number of leaves, leaf area, root collar diameter (RCD), root nodules, and root-shoot ratio in the control and at 100 mM NaCl. On the other hand, the growth of the species was suppressed at 300 mM NaCl. The physiological characteristics (germination, survival, and photosynthetic rates) were also high in the control compared to the NaCl treatments. As for the seed anatomical characteristics, the radicle cells remained undamaged, with high cell number and longer cells in the control, but showed damaged and reduced cell number and length at 300 mM NaCl. This indicates that P. indicus f. indicus can only tolerate moderate saline soil conditions. Hence, this result needs to be considered in reforestation efforts of the country using this species.

scholarly journals Sanitary landfill leachate as a source of nutrients on the initial growth of sunflower plants

2016 ◽  
Vol 20 (8) ◽  
pp. 746-750 ◽  
Author(s):  
Francisco H. Nunes Júnior ◽  
Franklin A. Gondim ◽  
Magnum de S. Pereira ◽  
Brennda B. Braga ◽  
Roberto A. Pontes Filho ◽  
...  
Keyword(s):  
Landfill Leachate ◽  
Polynomial Regression ◽  
Inhibitory Effect ◽  
Sanitary Landfill ◽  
Initial Growth ◽  
Experimental Conditions ◽  
Shoot Height ◽  
Number Of Leaves ◽  
Collar Diameter ◽  
Sanitary Landfill Leachate

ABSTRACT The aim of this study was to evaluate the initial growth of sunflower seedlings under different concentrations of sanitary landfill leachate, considering the feasibility of its use as source of nutrients for agricultural production. Biometric and vigor variables were analyzed through the measurements of collar diameter, shoot height, number of leaves and shoot and root fresh and dry matters, from January to February 2015. The experimental design was completely randomized in a 5 x 4 factorial scheme: five leachate concentrations (0, 40, 60, 80 and 100 kg N ha-1) x four harvest periods (14, 21, 25 and 29 days after sowing), with five replicates each containing two plants. The data were subjected to analysis of variance and polynomial regression, and the results of the last harvest (29 DAS) were compared by Tukey test (p ≤ 0.05). The use of sanitary landfill leachate increased all analyzed variables in sunflower plants when compared to the control plants (without leachate), especially in the treatment of 100 kg N ha-1. There was no inhibitory effect of the leachate on the initial growth of sunflower seedlings under adopted experimental conditions.

scholarly journals Trichoderma Contributes to the Germination and Seedling Development of Açaí Palm

Agriculture ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 456
Author(s):  
Bruno Fróes Campos ◽  
Anselmo Junior Corrêa Araújo ◽  
Cristina Aledi Felsemburgh ◽  
Thiago Almeida Vieira ◽  
Denise Castro Lustosa
Keyword(s):  
Dry Mass ◽  
Initial Growth ◽  
Randomized Design ◽  
Trichoderma Isolate ◽  
Number Of Leaves ◽  
Collar Diameter ◽  
Completely Randomized Design ◽  
Set Up ◽  
Root Size ◽  
Trichoderma Isolates

The application of Trichoderma fungus can be used to obtain seedlings of higher quality for plantations. The objective of this study was to evaluate the effects of Trichoderma isolates on the germination and initial growth of açaí seedlings. Two trials were set up. In the laboratory, the seeds were inoculated in suspensions prepared with each of the isolates for 24 h, and they were arranged in trays containing filter paper in a completely randomized design with five replicates containing 50 seeds each. For the control, the seeds were submerged only in water. Part of the seedlings resulting from seeds treated and not treated with Trichoderma were transferred to bags containing forest soil and were submitted to seven modes of application of Trichoderma and kept in a nursery. The speed of germination and hypocotyl were not influenced by the biological treatment. The application of the different Trichoderma isolates positively influenced the height, collar diameter, number of leaves, root size, leaf area and root, and aerial part dry mass of the açaí seedlings. The application of the Trichoderma isolate TAM01 on the preplanting substrate and biweekly applications on the postplanting substrate was the combination that most positively influenced the development of açai seedlings.

scholarly journals CHARACTERIZATION OF SEEDS, SEEDLINGS AND INITIAL GROWTH OF JACARANDA MIMOSIFOLIA D. DON. (BIGNONIACEAE)

2018 ◽  
Vol 42 (4) ◽  
Author(s):  
Jamille Rabêlo de Oliveira ◽  
Clark Alberto Souza da Costa ◽  
Antonio Marcos Esmeraldo Bezerra ◽  
Haynna Fernandes Abud ◽  
Eliseu Marlônio Pereira de Lucena
Keyword(s):  
Quality Index ◽  
Dry Weight ◽  
Initial Growth ◽  
Randomized Design ◽  
Germination Process ◽  
Length Width ◽  
Number Of Leaves ◽  
Collar Diameter ◽  
Jacaranda Mimosifolia

ABSTRACT This research aimed to characterize the biometry of seeds, the morphology of seedlings and to evaluate the initial growth of blue jacaranda trees (Jacaranda mimosifolia D. Don.) in two environments with distinct luminosity. The biometry of 100 de-winged seeds was measured by their length, width and thickness. One hundred seeds were sown into 300 cm3 tubes and seedlings morphology was registered throughout the germination process using digital photographs disposed sequentially according to seedlings age. The initial growth analysis was performed in two environments, full sun and greenhouse, during nine periods, and arranged in a complete randomized design with subplots. The response variables were: number of leaves, plant height, collar diameter, root length, aerial and roots dry weight, and Dickson’s Quality Index (DQI). Biometry results showed seeds 7.09 - 9.26 mm long, 6.74 -9.39 mm wide, and 1.11 -1.89 mm thick. Germination is of hypogealphanerocotylar type, with first root arising six days after sown. Plants at full sun presented larger collar diameters, greater root dry weight and higher DQI as evaluation periods passed by. In conclusion, the biometry of seeds and the morphology of seedlings of blue jacaranda can be used to recognize this species in the field. Plants at full sun presented better development. Seedlings cultivated at full sun can be destined to recuperate forests and degraded areas just 36 weeks after sowed.

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