scholarly journals Viability and Vigor of Bacaba Seed (Oenocarpus bacaba) in Different Substrates

2020 ◽  
pp. 46-50
Author(s):  
Daniella Inácio Barros ◽  
Helber Veras Nunes ◽  
Camila Torres da Silva ◽  
Bruno Henrique di Napoli Nunes ◽  
Rodrigo Silva de Oliveira ◽  
...  
Keyword(s):  
Amazon Basin ◽  
Seedling Emergence ◽  
Dry Mass ◽  
Shoot Length ◽  
Palm Tree ◽  
Virgin Forest ◽  
Federal Institute ◽  
Root And Shoot Length ◽  
Number Of Leaves ◽  
The City

The Bacaba (Oenocarpus bacaba) belongs to the Arecaceae family, is a palm tree native to the Amazon, in which it is distributed throughout the Amazon basin, mainly in the regions of Pará, Tocantins, Acre, and in southern Maranhão, having as habitat the high virgin forest. The production of quality seedlings depends on several factors, and the composition of substrates is a major factor, because seed germination, root initiation, and rooting are directly linked to the chemical, physical and biological characteristics of the substrate. The experiment was carried out at the Federal Institute of Education - IFTO, Sciences, and Technology of Tocantins, in the city of Gurupi - TO, between September 5, 2018, and December 30, 2018. For the realization of the same, Bacaba seeds (Oenocarpus bacaba) were used, which were purchased at the street fair in the municipality of Gurupi - TO. Root and shoot length, number of leaves, root and shoot dry mass, first emergency count and seedling emergence were evaluated. The substrates: Washed Sand, Commercial Substrate, Pinus Bark + Sawdust Powder + Commercial Substrate, and Worm Humus + Coconut Shell + Commercial Substrate + Sawdust Powder provided the highest values of viability and vigor in Bacaba seeds.

scholarly journals Environment and slow-release fertilizer in the production of Euterpe precatoria seedlings

2018 ◽  
Vol 48 (4) ◽  
pp. 382-389
Author(s):  
Ueliton Oliveira de Almeida ◽  
Romeu de Carvalho Andrade Neto ◽  
Aureny Maria Pereira Lunz ◽  
Sônia Regina Nogueira ◽  
David Aquino da Costa ◽  
...  
Keyword(s):  
Slow Release ◽  
Block Design ◽  
Dry Mass ◽  
Palm Tree ◽  
Slow Release Fertilizer ◽  
Lack Of Information ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
Collar Diameter ◽  
Root Collar

ABSTRACT Euterpe precatoria Mart. has been demanded due to the functional characteristics of its fruits and, therefore, its planting has been encouraged. However, there is a lack of information about the seedling production system of this palm tree. Neither a favorable environment nor the amount of fertilizer in the substrate have been defined for the production of healthy and vigorous seedlings. This study aimed to evaluate the effect of environments and doses of a slow-release fertilizer on the production of E. precatoria seedlings. The experiment was conducted in a randomized block design, with three replications and ten plants per plot. The treatments were arranged in a 4 x 5 factorial scheme, with four environments (under shading levels of 20 %, 30 %, 50 % and 75 %) and five doses of a slow-release fertilizer (0.0 kg m-3, 2.5 kg m-3, 5.0 kg m-3, 7.5 kg m-3 and 10.0 kg m-3 of substrate). The seedling height; root collar diameter; number of leaves; leaf, shoot, root and total dry mass; and the Dickson quality index were analyzed. There were significant interactions between the shaded environments and slow-release fertilizer doses for all the analyzed variables. The 75 %-shaded environment yielded better quality seedlings. The slow-release fertilizer can be used to produce E. precatoria seedlings in environments under shading levels of 50 % and 75 %, being the 4.60 kg m-3 and 8 kg m-3 doses, respectively, the most recommended ones.

scholarly journals Production of tomato seedlings Santa Cruz cv. Kadain using different substrates

2019 ◽  
Vol 13 ((03) 2019) ◽  
pp. 335-339
Author(s):  
Vinícius Jardel Szareski ◽  
Géri Eduardo Meneghello ◽  
Ivan Ricardo Carvalho ◽  
Gustavo Henrique Demari ◽  
Simone Morgan Dellagostin ◽  
...  
Keyword(s):  
Dry Mass ◽  
Shoot Length ◽  
Stem Diameter ◽  
Santa Cruz ◽  
Tomato Crop ◽  
Grape Skin ◽  
Tomato Seedlings ◽  
Green Mass ◽  
The World ◽  
Number Of Leaves

The tomato crop is considered of great socio-economic importance in the world, feeding millions of people daily. This crop is considered strategic because its production is diverse in the world, being produced by large agro-industries, moving a rich productive chain. This work aimed to evaluate the production of tomato seedlings as function of different substrates, and to comprehend the interrelation of characteristics through linear associations. The experimental design was randomized blocks, using one tomato cultivar, Santa Cruz Kada, in 32 repetitions for each treatment. The treatments consisted of several substrates such as carbonized rice husk, grape husk (S10), coconut fiber, and commercial substrate (Bioplant®). The experiment was carried out in a greenhouse using pots. The characters measured 25 days after sowing were: stem diameter, number of leaves, shoot length, root length, green mass of root, green mass of shoot, dry mass of shoot, and dry mass of root. The analysis of variance was performed and the characters that presented significance were compared by the Duncan test at 5% of probability. Subsequently, Pearson’s linear correlation was individually performed for each substrate. The results showed that commercial (Bioplant®) and grape skin substrates were the most suitable for production of tomato seedlings cv. Santa Cruz Kada. The characters of stem diameter, number of leaves, shoot length, green mass of root and green mass of shoot revealed significant correlations; however they differently behaved in the substrates.

scholarly journals Volume of containers and the organic substrates in the production of guava rootstocks

2019 ◽  
Vol 2 (1) ◽  
pp. 20-26
Author(s):  
Francisco Tomaz de Oliveira ◽  
Vander Mendonça ◽  
Oscar Mariano Hafle ◽  
Joserlan Nonato Moreira ◽  
Ednaldo Barbosa Pereira Júnior ◽  
...  
Keyword(s):  
Aerial Part ◽  
Dry Mass ◽  
Organic Substrate ◽  
Shoot Length ◽  
Organic Substrates ◽  
Federal Institute ◽  
Sheep Manure ◽  
Shoot Mass ◽  
Education Science

The volume of containers and the organic substrates are factors directly linked to the quality of seedlings. At this work, we conducted an experiment aiming to evaluate the effect of different organic sources and volumes of containers on the production of guava rootstocks. The experiment was realized from June to November 2011, at the Experimental Farm of the Federal Institute of Education, Science and Technology of Paraíba (IFPB), Sousa-PB, Brazil. We used a randomized block in a 3x4 factorial design. The first factor was the organic substrate, with three treatments (cattle manure, sheep manure and earthworm castings), and the second factor consisted of four container volumes (635 mL, 1285 mL, 1800 mL and 3300 mL). Each treatment was replicated four times. The evaluated characteristics were: shoot length, shoot diameter, dry shoot matter and macronutrient contents (N, P, K, Ca, Mg and S) in the aerial dry shoot mass. Based on the results, we recommend a volume of containers of 1285 mL for guava rootstocks, regardless of the organic substrate. The variation in the volume of the containers provided differences in the growth of the rootstocks and the accumulation of N, P, Ca and Mg in the dry mass of the aerial part.

scholarly journals Desempenho da rúcula sob condições de sombreamento e níveis de salinidade da água de irrigação

2020 ◽  
Vol 16 (4) ◽  
pp. 38-45
Author(s):  
Rilbson Henrique Silva dos Santos ◽  
Mirandy dos Santos Dias ◽  
Francisco de Assis da Silva ◽  
João Paulo de Oliveira Santos ◽  
Saniel Carlos dos Santos ◽  
...  
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Irrigation Water ◽  
Aerial Part ◽  
Saline Water ◽  
Dry Mass ◽  
Family Farming ◽  
Salinity Levels ◽  
Number Of Leaves ◽  
The City

Arugula is a crop of fast vegetative growth and short cycle, widely accepted worldwide. In Brazil, its production generates jobs and income for family farming. However, the use of saline water in the cultivation of this plant is one of the main factors that limit production. Given this situation, the objective of this study was to evaluate the growth of Apreciatta arugula cultivated under conditions of shading and salinity levels of irrigation water. The experiment was conducted in a greenhouse in the experimental area of the Agricultural Sciences Center of the Federal University of Alagoas, in the city of Rio Largo, AL. The treatments were obtained from the combination of two shading conditions (with shading and without shading) and five levels of electrical conductivity of the irrigation water (0.5; 2.0; 3.5; 5.0 and 6.5 dS m-1). The experimental design used was completely randomized in a 2 x 5 factorial scheme. Combined, the factors resulted in 10 treatments with four replications and one plant per plot, totaling 40 experimental units. Arugula plants were evaluated for leaf number, plant height, leaf area and dry matter of the aerial part. Increasing levels of salinity in the irrigation water, lead to a reduction in the number of leaves, plant height and dry mass of the aerial part of arugula plants cultivar Apreciatta. However, the use of shading together with the salinity of irrigation water up to 1.4 dS m-1does not affect the leaf area of arugula plants, being possible to cultivate without considerable losses.

scholarly journals COMPARISON OF VERMICOMPOST AND LEAF MOLD ON THE GROWTH AND YIELD OF CAPSICUM ANNUUM L.VAR. FRUTESCENS (L.) KUNTZE

2015 ◽  
Vol 2 (2) ◽  
pp. 100-104
Author(s):  
Mary Kensa V
Keyword(s):  
Growth Parameters ◽  
Shoot Length ◽  
Growth And Yield ◽  
Cow Dung ◽  
Leaf Mold ◽  
Root And Shoot Length ◽  
Number Of Leaves ◽  
Macro And Micronutrients ◽  
Banana Wastes

An experiment was conducted to determine the effect of vermicompost on the growth and yield ofCapsicum annuumvar. frutescens (Kantharimilagu). Vermicompost is a rich source of vitamins, enzymes, macro and micronutrients which when applied to plants help in efficient growth. The major thrust of thisinvestigation was focused on the growth and yield of Capsicumannuumvar. frutescensusing the vermicompost prepared by the earthworm species namely Eudriluseugeniaeon the biodegradation of Banana waste (Musasps) mixed with cow dung 3:1. The present study has been carried out to evaluate thephysico-chemical characteristics, micronutrients and macronutrients, and also a comparative study was done on the effect of vermicompost on growth parameters namely root length, shoot length, number of leaf and number of flower and length of fruits in Capsicum annuumvar. frutescens. The results of the study revealed that the plants treated withvermicompostshowed C/N ratio increasedin macronutrients (N, P, K, Ca, Na, Mg and C) and micronutrients (Fe, Cu, Mg and Zn) than the plants grown in leaf mold and control.The vermicompost applied plant (Capsicum annuumvar. frutescens) showed increased root and shoot length, number of leaves, number of flowers and length of fruits than the plants which are not treated with vermicompost. Hence based on the various biochemical studies performed it is concluded that this quality of bio solid vermicompost obtained from the degradation of banana wastes by Eudriluseugeniae is an effective biofertilizer which would facilitate the increased uptake of the nutrients by the plants resulting in higher growth and yield.

scholarly journals Tratamentos Pré-Germinativos na Emergência e Desenvolvimento Inicial de Plântulas de Graviola

2021 ◽  
Vol 25 (1) ◽  
pp. 72-76
Author(s):  
Marcus Vinicius Sandoval Paixão ◽  
Andrieli Ferrari Mônico ◽  
Rafaela Barreto Cazaroto Grobério ◽  
Gustavo Miranda Cremonini ◽  
Hélio Pena de Faria Junior ◽  
...  
Keyword(s):  
Seedling Emergence ◽  
Dry Mass ◽  
Experimental Unit ◽  
Annona Muricata ◽  
Initial Development ◽  
Efficient Treatment ◽  
Green Mass ◽  
Leaf Dry Mass ◽  
Number Of Leaves ◽  
Collar Diameter

A graviola, Annona muricata L., produz sementes que podem apresentar dormência ocasionada pela impermeabilidade do tegumento à água, necessitando assim de métodos para superação desta. Objetivou-se avaliar o efeito de tratamentos pré-germinativos na emergência e desenvolvimento inicial de plântulas de graviola. O delineamento experimental utilizado foi em blocos ao acaso, com 13 tratamentos e quatro repetições, sendo cada unidade experimental composta de 50 sementes. As sementes foram submetidas aos tratamentos com imersão por 30 minutos, os quais foram: água (26 °C testemunha), solução de giberelina a 1.000, 2.000, 3.000 e 4.000 mg.L-1, água com gelo em ponto de fusão (0 °C), congelador por 6 horas (-10 °C), geladeira por 24 horas (10 °C), água em ponto de ebulição (100 °C), solução de NaCl 9 g.L-1, solução de KCl 5 g.L-1, água de coco e suco de laranja. A semeadura ocorreu em tubetes 280 mL contendo substrato composto por solo+eterco bovino. Trinta dias após a semeadura (DAS) avaliou-se a porcentagem, índice de velocidade e tempo médio de emergência das plântulas. Sessenta dias após a semeadura foram avaliados: número de folhas; altura da planta; diâmetro do coleto; comprimento da raiz; massa verde foliar; massa seca foliar; massa verde e massa seca da raiz. O tratamento com giberelina de 4.000 mg.L-1 de GA3 foi o tratamento mais eficiente para induzir a emergência e desenvolvimento inicial de plântulas de graviola.   Palavras-chave: Annona muricata. Giberelina. Propagação.   Abstract Soursop, Annona muricata L., produces seeds that may present dormancy caused by the impermeability of the integument to water, thus requiring methods to overcome it. The objective was to evaluate the effect of pre-germinative treatments on the emergence and initial development of soursop seedlings. The experimental design used was in randomized blocks, with 13 treatments and four replications, each experimental unit consisting of 50 seeds. The seeds were submitted to immersion treatments for 30 minutes, which were: water (26°C control), 1.000 gibberellin solution, 2.000, 3.000 e 4.000 mg.L-1, water with ice at melting point (0 °C), freezer for 6 hours (-10 °C), refrigerator for 24 hours (10 °C), boiling water (100°C), NaCl 9 g.L-1 solution, KCl 5 g.L-1 solution, coconut water and orange juice. Sowing took place in 280 mL tubes containing substrate composed of soil + bovine manure. Thirty days after sowing (DAS), the percentage, speed index and mean seedling emergence time were evaluated. Sixty days after sowing the following items were evaluated: number of leaves; plant height; collar diameter; root length; leaf green mass; leaf dry mass; green mass and dry mass of the root. The treatment with gibberellin of 4.000 mg.L-1 of GA3 was the most efficient treatment to induce the emergence and initial development of soursop seedlings.   Keywords: Annona muricate. Gibberellin.  Propagation.

scholarly journals Marandu, Xaraés and Piata Grasses Fertilized With Swine Wastewater Under Greenhouse Conditions

2019 ◽  
Vol 11 (9) ◽  
pp. 112
Author(s):  
Marinho Rocho da Silva ◽  
Joadil Gonçalves Abreu ◽  
Oscarlina Lucia dos Santos Weber ◽  
Alexandra de Paiva Soares ◽  
Edna Maria Bonfim-Silva ◽  
...  
Keyword(s):  
Crude Protein ◽  
Aerial Part ◽  
Dry Mass ◽  
Neutral Detergent Fiber ◽  
Swine Wastewater ◽  
Crude Protein Content ◽  
Acid Detergent Fiber ◽  
Number Of Leaves ◽  
Urochloa Brizantha ◽  
The City

The management of swine wastewater is of great importance where swine breeding is considerable and can represent an important fertilizer at maintenance of forages. The objective was to identify the Urochloa brizantha cultivar more responsive to fertilization with swine wastewater. The experimental design was in randomized blocks, with a 3 × 5 factorial scheme and four replications. The treatments consisted of three Urochloa brizantha cultivars (Marandu, Xaraés and Piatã) and five swine wastewater doses (0.0; 3.5; 7.0; 10.5 and 14.0 g dm3 pot-1). The experiment was carried out in a greenhouse in the city of Cuiabá-MT. Three cuts were performed in the aerial part of the plants with intervals of 30 days between them. The application of the swine wastewater, regardless of the cultivar provided an increment in the production of dry mass, plant height, number of tillers, number of leaves and crude protein content, besides reducing the neutral detergent fiber and acid detergent fiber contents. The swine wastewater can be used as an alternative in the fertilization of Urochloa brizantha, because the cultivars were responsive to fertilization.

scholarly journals Kale seed priming with red seaweed biostimulant

2021 ◽  
Vol 35 (2) ◽  
pp. 111-118
Author(s):  
Fernando Lemes Ternus ◽  
Vanessa Neumann Silva ◽  
Paola Mendes Milanesi ◽  
Brenda Tortelli
Keyword(s):  
High Temperature ◽  
Abiotic Stresses ◽  
Chromatographic Analysis ◽  
Seed Priming ◽  
Dry Mass ◽  
Shoot Length ◽  
Red Seaweed ◽  
Seedling Root ◽  
Seed Health ◽  
Root And Shoot Length

Seed priming is a treatment that can contribute to improve seed physiological potential and increase its tolerance to abiotic stresses. Thus, this work evaluated the effect of kale seed priming with red seaweed biostimulant on physiological seed potential, seed health and tolerance to high temperature at germination. The experimental design was completely randomised, with a 2´x4 factorial scheme. Treatments consisted of doses of 0, 0.25, 0.50 and 1.0 mL L–1 of red algae Solieria sp. biostimulant, and temperatures of 20 and 30°C. The biostimulant used was subjected to chromatographic analysis to detect bioactive compounds. Seed imbibition curves were used to determine priming duration procedure. Treatments effects were evaluated by seed health, germination, root and shoot length, and dry mass, under ideal (20°C) and stress (30°C) temperatures. The results were submitted to analysis of variance, Tukey’s test (temperatures) and regression (doses). The 22-h imbibition period is adequate for kale seed priming with Solieria sp. biostimulant. Kale seed priming with Solieria sp. does not interfere with seed health. The temperature of 30°C reduces kale seed germination index, as seedling root growth. The use of Solieria sp. biostimulant does not promote kale seed physiological potential.

scholarly journals Radish cultivation with hydrogel doses combined with different water slides in drip irrigation system

2021 ◽  
Vol 10 (4) ◽  
pp. e54810414394
Author(s):  
Patricia dos Santos Zomerfeld ◽  
Natane Bonfim Lima ◽  
Guilherme Augusto Biscaro ◽  
Anamari Viegas de Araujo Motomiya ◽  
Aline Baptista Borelli ◽  
...  
Keyword(s):  
Water Stress ◽  
Experimental Design ◽  
Reference Evapotranspiration ◽  
Irrigation System ◽  
Dry Mass ◽  
Root Diameter ◽  
Shoot Length ◽  
Drip Irrigation System ◽  
Yield And Quality ◽  
Number Of Leaves

Radish yield and quality are factors influenced by water stress that may occur during periods of drought or irrigation handled inappropriately, interfering negatively in plants development, producing radishes of inferior quality and in lesser quantity. In addition to irrigation, which makes water available in the system, it is important to maintain it with the use of water-retaining products such as hydrogel. The aim of this work was to evaluate radish yield, submitted to three different hydrogel doses combined with two water slides. The experimental design was in factorial scheme 3 x 2, with three water slides (50%, 75% and 100% Eto – reference evapotranspiration estimate) and two hydrogel doses (40 and 60 g m-2) with four replicates. Number of leaves, horizontal and vertical root diameter (mm), total and shoot length (cm), fresh mass of root and shoot (g), dry mass of shoot and root (g) and yield (t ha-1) were evaluated. The best results, regarding radish production and development, were obtained when using 50% of Eto with 60 g m-2 of hydrogel in combination. Thus, radish cultivation in oxisoil was influenced by the use of hydrogel, which provided a more efficient water level use.

scholarly journals Obtaining Java Plum Seedlings (Syzygium cumini) through Different Seed Extraction and Cleaning Methods

2020 ◽  
pp. 45-50
Author(s):  
Breno Alves Rodrigues ◽  
Maryana Silva Zielinski ◽  
Lucas Eduardo Morais Brito ◽  
Daniella Inácio Barros ◽  
Helber Veras Nunes ◽  
...  
Keyword(s):  
Aerial Part ◽  
Room Temperature ◽  
Seedling Emergence ◽  
Psidium Guajava ◽  
Extraction Methods ◽  
Dry Mass ◽  
Wire Mesh ◽  
Syzygium Cumini ◽  
Federal Institute ◽  
Cleaning Methods

Java plum (Syzygium cumini) belonging to the botanical family Myrtaceae, which also includes species of other tropical fruits widely consumed in Brazil, such as guava (Psidium guajava L.) and surinam cherry (Eugenia uniflora L.). The production of quality seedlings depends on several factors, including the method of extraction and cleaning the seed for planting. The experiment was conducted at the Federal Institute of Education, Science and Technology of Tocantins, Gurupi/TO city, from October 2018 to May 2019. The extraction methods used were: manual with friction on wire mesh; manual with the addition of sand and friction on wire mesh; manual with friction on a plastic sieve; fermentation at room temperature for three days; immersion in quicklime (CaO) solution for 24 and 48 hours; fermentation at room temperature with the addition of 5 pieces of sugar to 3 pieces of water, for 24, 48 and 72 hours; fermentation at room temperature, with the addition of 5 pieces of sugar to 1 of water, for 24, 48 and 72 hours. The following characteristics were evaluated: Root length, green mass of the aerial part, dry mass of the aerial part and root, first count of emergence and seedling emergence. All seeds were manually extracted and then submitted to different extraction methods. The best results were for the seeds that were applied to extraction by friction in plastic mesh, were soon immersed in quicklime solution for 24 hours and fermented at room temperature. The solutions that presented the best results were the solution with 5 proportions of water and 3 of sugar exposed during 24 hours (5:3) and also 5 proportions of water for only 1 sugar for 72 hours. These are the best treatments for the values of viability and vigor in Java plum seeds.

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