scholarly journals CONDITIONING OF SEEDLINGS OF PEPPERS (CAPSICUM ANNUM L.), INFLUENCED BY THE HYDROPONIC SYSTEM "FLOATING"

Irriga ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 764-770
Author(s):  
ANA RAQUEL DE MELO ◽  
JOSÉ FLÁVIO FERREIRA DE SOUSA ◽  
CRISTIANE NUNES CONCEIÇÃO ◽  
MARIA ROSELANE ALVES OLIVEIRA
Keyword(s):  
Dry Matter ◽  
Plant Root ◽  
Calcium Nitrate ◽  
Dry Mass ◽  
New Production ◽  
Fresh Matter ◽  
Hydroponic System ◽  
Capsicum Annum ◽  
Randomized Design ◽  
Dry Matter Weight

CONDITIONING OF SEEDLINGS OF PEPPERS (CAPSICUM ANNUM L.), INFLUENCED BY THE HYDROPONIC SYSTEM "FLOATING"     ANA RAQUEL PEREIRA DE MELO 1; JOSÉ FLÁVIO FERREIRA DE SOUSA2; CRISTIANE NUNES DA CONCEIÇÃO 3 E MARIA ROSELANE ALVES OLIVEIRA4   1 Engenheira Agrônoma, Instituto Federal do Maranhão - Campus Codó-MA, Rua do Poraquê S/N Codó Novo, Zona Rural, CEP: 65400000, Codó- MA, Brasil, [email protected]; 2 Engenheiro Agrônomo, Instituto Federal do Maranhão - Campus Codó-MA, Rua do Poraquê S/N Codó Novo, Zona Rural, CEP: 65400000, Codó- MA, Brasil, [email protected]; 3 Engenheira Agrônoma, Instituto Federal do Maranhão - Campus Codó-MA, Rua do Poraquê S/N Codó Novo, Zona Rural, CEP: 65400000, Codó- MA, Brasil, [email protected]; 4 Engenheira Agrônoma, Instituto Federal do Maranhão - Campus Codó-MA, Rua do Poraquê S/N Codó Novo, Zona Rural, CEP: 65400000, Codó- MA, Brasil, [email protected].     1 ABSTRACT   The aim of this research to assess the development of pepper seedlings under different nutritional conditions, under the influence of the "Floating" aiming system, a new production, alternative for larger producers’ safety in producing sustainably, ensuring the production of healthy food and income generation. The production of seedlings occurred in polyethylene plastic trays, where they were placed 2/seeds paprika cells of Yolo Wonder cultivar. After the emergence of seedlings was thinning. The experimental design was completely randomized design, containing 5 treatments with 4 replications. The treatments were T1-trays remained out of the "floating", receiving water irrigation 2 times a day; T2-trays of floating, remained out more irrigation the same solution of the "floating" 3 times a week, using 500 ml of solution per Pan; T3-were pans 12:00 are in "floating" and 12:00 am out; T4-trays remained throughout the period of the test in the "floating"; T5-trays remained throughout the period in the "floating", except in the last week. The solution was composed of soluble fertilizer, calcium nitrate, potassium chloride, Triple Superphosphate and Urea, and was changed every Ten days. The parameters analyzed were height of the plant; Root length; Fresh matter weight of shoot; Weight of fresh root matter; Dry matter weight of shoot; Root dry matter weight; Diameter of the stem. All parameters analyzed were submitted to analysis of variance and averages compared by Tukey test to 1% in the case of significance. The treatment proved to be more feasible was the T4, as this medium to larger variables introduced height, stem diameter, plant fresh mass aerial and aerial dry mass.   Keywords: Nutrient solution, production, safety, productive Alternative.     MELO, A. R. P.; SOUSA, J. F. F.; CONCEIÇÃO, C. N. E OLIVEIRA, M. R. A. CONDICIONAMENTO DE MUDAS DE PIMENTÃO (CAPSICUM ANNUM L.), INFLUENCIADAS PELO SISTEMA HIDROPÔNICO “FLOATING”           2 RESUMO   Objetivou-se com esta pesquisa avaliar o desenvolvimento de mudas de pimentão submetidas a diferentes condicionamentos nutricionais, sobre influência do sistema “Floating” visando, uma nova alternativa de produção, para propiciar aos produtores maior segurança em produzir sustentavelmente, para com isso garantir a produção de alimentos saudáveis e geração de renda. A produção de mudas ocorreu em bandejas de polietileno plástico, onde foram colocadas 2 sementes/célula de pimentão da cultivar Yolo Wonder. Após a emergência das plântulas, foi feito o desbaste. O delineamento experimental foi Inteiramente Casualizado, contendo 5 tratamentos com 4 repetições. Os tratamentos foram: T1- As bandejas permaneceram sempre fora do “floating”, recebendo irrigação de água 2 vezes ao dia; T2 – As bandejas permaneceram fora do floating, mais irrigação da mesma solução do “floating” 3 vezes por semana, usando 500 ml da solução por bandeja; T3 – As bandejas ficaram 24 h em “floating” e 24 h fora; T4 - As bandejas permaneceram todo o período do ensaio no "floating"; T5 - As bandejas permaneceram todo o período no "floating” ", exceto na última semana. A solução foi composta pelos fertilizantes solúveis, Nitrato de Cálcio, Cloreto de potássio, Superfosfato Triplo e Ureia, e foi trocada a cada Dez dias. Os parâmetros analisados foram: Altura da planta; Comprimento da raiz; Peso da matéria fresca da parte aérea; Peso da matéria fresca da raiz; Peso da matéria seca da parte aérea; Peso da matéria seca da raiz; Diâmetro do caule. Todos os parâmetros analisados foram submetidos à análise de variância e as médias comparadas pelo teste de Tukey a 1% no caso de significância. O tratamento que se mostrou mais viável foi o T4, pois este apresentou maiores médias para as variáveis altura da planta, diâmetro caulinar, massa fresca da parte aérea e massa seca da parte aérea.   Palavras-chave: Solução Nutritiva, Alternativa de Produção, Segurança produtiva.

scholarly journals Productivity of potato seed submitted to different doses of potassium in hydroponic system

2019 ◽  
pp. 555
Author(s):  
Camila B.A. Tufik
Keyword(s):  
Seed Potato ◽  
Block Design ◽  
Maximum Yield ◽  
Dry Mass ◽  
Potato Seed ◽  
Design Data ◽  
Fresh Matter ◽  
Hydroponic System ◽  
Randomized Block Design ◽  
Different Doses

The potato is one of the most economically important crops in Brazil, and among the items that most cost the production is seed potatoes. The deficiency of one nutrient can interfere with the absorption and accumulation of the others in plants. The aim of this work was to quantify the optimal potassium (K) dose for minituber basic seed potato yield in hydroponic system. The experiment was installed in a greenhouse with the Agata cultivar minitubers. The treatments consisted of five doses of K (0.0; 2.5; 5.0; 7.5 e 10.0 mmol L-1) with four repetitions. The experimental design was a randomized block design. Data were submitted to analysis of variance and regression. The number of tubers, fresh mass, classification and dry mass were measured. The content of K and content other nutrients in the seed potato tubers were also evaluated. In the hydroponic systems, the maximum yield per plant was 48.41 tubers obtained with 6.15 mmol L-1 of K and maximum mass of fresh matter was 646.6 g.

scholarly journals Crescimento e produção de alface em resposta a níveis de drilocomposto e NPK

2020 ◽  
Vol 16 (3) ◽  
pp. 18-26
Author(s):  
Angelita Aparecida Coutinho Picazevicz ◽  
Arnaldo Libório Santos Filho ◽  
Leonardo dos Santos França Shockness ◽  
Luana Silva Lima ◽  
Karoliny Fim da Silva ◽  
...  
Keyword(s):  
Aerial Part ◽  
Dry Matter ◽  
Dry Mass ◽  
Root Mass ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Npk Fertilization

The objective was to evaluate the effects of levels of compost and fertilization with NPK on growth and production of lettuce. The experiment was carried out in a greenhouse, in a completely randomized design in a 6 x 2 factorial scheme, with four replications, considering six levels of compost (0; 25; 50; 75; 100 and 125 g plant-1) and absence and presence fertilization with NPK. The evaluated parameters were number of total and commercial leaves, mass of fresh commercial and total aerial part, mass of commercial and total dry aerial part, dry root mass and total dry mass. There was an interaction between the drilocomposite and NPK fertilization for the evaluated parameters, except for root dry matter. The fertilization with NPK increased the growth and production of lettuce when there was no application of the compost. Likewise, that the levels of this fertilizer increased the growth and production of lettuce only in the absence of NPK. The application of drilocomposite increases the growth of lettuce plants and can replace fertilization with NPK.

scholarly journals Optimization of Sulphur Requirement to Sesame (Sesamum indicum L.) Genotypes Using Tracer Techniques

2012 ◽  
Vol 41 (1) ◽  
pp. 7-13 ◽  
Author(s):  
MMA Mondal ◽  
M Badruddin ◽  
MA Malek ◽  
MB Hossain ◽  
AB Puteh
Keyword(s):  
Seed Yield ◽  
Biochemical Parameters ◽  
Dry Matter ◽  
Dry Mass ◽  
Nitrogen Accumulation ◽  
Tracer Techniques ◽  
Randomized Design ◽  
Nutrients Uptake ◽  
Completely Randomized Design ◽  
Sesame Genotypes

Four sesame genotypes viz., T6, SM4, SM7 and SM8 were verified with three levels of sulphur 10, 20 and 40 kg/ha including control. Factorial experiment was laid out in a completely randomized design with four replications. Biochemical parameters such as chlorophyll, nitrate reductase, amino acid and total sugar in leaves, total dry mass production, total nitrogen accumulation in seeds and seed yield increased with sulphur application up to 20 kg S/ha. Application of 40 kg S/ha had no significant benefit on biochemical parameters, dry matter and seed yield of sesame though 35S uptake in seeds increased with increasing sulphur levels till 40 kg/ha. The biochemical traits and nutrients uptake were superior in SM4 than other genotypes which resulted in the highest seed yield of SM4. Among the sulphur levels, 20 kg S/ha showed the maximum seed yield in all the genotypes. Therefore, sulphur @ 20 kg/ha can be recommended for getting maximum productivity of sesame genotypes. DOI: http://dx.doi.org/10.3329/bjb.v41i1.11076 Bangladesh J. Bot. 41(1): 7-13, 2012 (June)

Effect of Salinity on Germination of Lettuce Cultivars Produced in Brazil

2019 ◽  
pp. 1-8 ◽  
Author(s):  
Jorge Tadeu Fim Rosas ◽  
Edilson Marques Junior ◽  
Rodrigo Monte Lorenzoni ◽  
Fernando Ferreira Lima dos Santos ◽  
Rodrigo Nogueira Martins
Keyword(s):  
Dry Matter ◽  
Germination Rate ◽  
Seedling Height ◽  
Resistant Plant ◽  
Fresh Matter ◽  
Effective Strategies ◽  
Randomized Design ◽  
Germination Speed ◽  
Completely Randomized Design ◽  
Different Doses

The challenge of recovering degraded soils due to salinity excess leads to the search for more effective strategies that can overcome this problem. Among these, one of the approaches is the use of resistant plant varieties in affected areas. This study aimed to evaluate the influence of different doses of salts on seed germination and seedling formation of two lettuce cultivars (Hanson and H121) and to verify the existence of tolerance among the cultivars. A completely randomized design was used in a 2x5x4 factorial scheme, where the cultivars were evaluated under five distinct salt doses (0, 25, 50, 75 and 100 mol.m-3, conductivities of 0.0, 2.8, 5.4, ​​8.0 and 10.6 dS.m-1, respectively), with four replicates. In this sense, the following variables were evaluated: germination rate (GR), germination speed index (GSI), seedling height (SH), root length (RL) and percentage of dry matter in relation to fresh matter (DM%). As a result, the Hanson cultivar presented better performance than the H121, under all the different salt doses, in all the studied variables. Also, the EC of 2.8 dS.m-1 did not affect any of the studied variables, including both cultivars. However, EC above 2.8 dS.m-1had, significantly, reduced the development of the cultivars. The Hanson cultivar was influenced only in the variables SH, RL and DM%, where and DM% were influenced by EC values above 8.0 and 10.6 dS.m-1, respectively. The cultivar H121 was significantly influenced by all evaluate dvariables, which demonstrates its greater susceptibility to salinity.

scholarly journals Anatomical and physiological characteristics of leaves from Eugenia dysenterica DC. can predict nutritional deficiency symptoms

2021 ◽  
pp. 683-694
Author(s):  
Layara Alexandre Bessa ◽  
Luciana Cristina Vitorino ◽  
Fabiano Guimarães Silva ◽  
Sebastião de Carvalho Vasconcelos Filho
Keyword(s):  
Photosynthetic Pigments ◽  
Mass Production ◽  
Dry Matter ◽  
Dry Mass ◽  
Nutritional Deficiency ◽  
Physiological Data ◽  
Spongy Parenchyma ◽  
Hydroponic System ◽  
Matter Production ◽  
Eugenia Dysenterica

Plants receiving insufficient concentrations of the different essential nutrients may respond symptomatically to this stress. However, when the first visible symptoms of nutritional deficiency appear, plants already exhibit significant changes in their structure. As seedlings of E. dysenterica are important for the recovery of degraded areas and as the fruits of this species are widely exploited commercially, we decided to evaluate whether the omission of nutrients may affect the leaf anatomical ultrastructure, dry matter production and the synthesis of photosynthetic pigments in this plant, in an attempt to use data of this nature to predict symptoms of nutritional deficiency in seedlings of this species. For this purpose, we grow seedlings in a hydroponic system, offering all nutrients and also omitting each nutrient individually. Thus, we evaluated the effect of the omission of each nutrient on the anatomical leaf structure, dry mass production and the synthesis of photosynthetic pigments. Seedlings that grew in the absence of Ca and Mn exhibited compromised spongy parenchyma and mesophyll development, while the omission of K and Mg increased the number of epidermal cells and stomata. Low dry mass production in E. dysenterica was related to the omission of S and Mn, while P, N and Fe deficiencies directly affected the synthesis of pigments. Thus, leaf anatomical and physiological data can predict nutritional deficiency conditions, enabling the user to diagnose the deficiency before the onset of symptoms in E. dysenterica seedlings. Our results may help investigators to understand the effects of nutritional omissions on other native Cerrado plants

scholarly journals Desempenho produtivo e nutricional de sorgo forrageiro consorciado com soja em doses de nitrogênio

2016 ◽  
Vol 7 (2) ◽  
pp. 204
Author(s):  
Rodrigo Ribeiro Fidelis ◽  
Luiz Antonio Menezes Gonzaga ◽  
Rubens Ribeiro da Silva ◽  
Carlos Augusto Oliveira de Andrade
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Efficiency Index ◽  
Productive Performance ◽  
Fresh Matter ◽  
Forage Sorghum ◽  
Randomized Design ◽  
Two Systems ◽  
Higher Doses

The objective of this study was to evaluate the nutritional and productive performance of forage sorghum in an intercropping with soybean submitted to nitrogen doses. The experiment was in blocks with a complete randomized design, with four repetitions in a factorial arrangement (6x2+1), with six doses of nitrogen (0, 20, 40, 60, 80 e 100 kg de N ha-1), in two systems, being the intercropping of sorghum x soybean and one control with only sorghum with an application of 100 kg de N ha-1. The variables studied were sorghum dry and fresh matter productivity, crude protein of sorghum, fresh matter productivity for the intercropping and protein efficiency index. Higher doses of N applied as cover on the sorghum x soybean intercropping increased the quality and the productivity of the forage, when compared to the monoculture. The sorghum intercropping with two lines of soybean provides higher productivities of fresh matter, dry matter and crude protein. The intercropping with one and two lines of soybean provides a saving of 40% and 60%, respectively, of nitrogen on the production of crude protein when compared to monoculture.

scholarly journals INITIAL DEVELOPMENT OF CORN SUBJECTED TO INCREASING NITROGEN DOSES

2021 ◽  
Vol 8 (1) ◽  
pp. e5226
Author(s):  
Dhiego César Oliveira Riva Neto ◽  
Leonardo Rodrigues Barros ◽  
Vinicius Silva Sousa ◽  
Eliana Paula Fernandes Brasil ◽  
Adriana Aparecida Ribon ◽  
...  
Keyword(s):  
Dry Matter ◽  
Economic Value ◽  
Fresh Matter ◽  
Agronomic Efficiency ◽  
Area Index ◽  
Initial Development ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Set Up ◽  
Almost All

Corn (Zea mays L.) is one of the most important cereals grown and consumed in the world not only for its economic value but also due to its importance in human and animal nutrition. This study aimed to assess the initial development of corn as a function of increasing nitrogen doses. The study was carried out in a greenhouse on the Sipal Farm, Confresa, MT, Brazil. The experiment was set up in a completely randomized design, consisting of five treatments (0, 100, 200, 300, and 400 mg N dm−3 soil), with four replications, conducted from April to June 2020. Four seeds of the hybrid K 9606 VIP 3 were sown per 8-L polyethylene pot. The plants were thinned at 7 days after emergence (DAE), leaving only one plant per pot. Morphological components were assessed. A significant effect was found for almost all the analyzed parameters, except for stem diameter and root dry matter. The maximum plant height, shoot fresh matter, leaf area index, shoot dry matter, root fresh matter, and root volume was obtained by applying the maximum agronomic efficiency doses of 248.83, 271.90, 336.91, 279.66, 403.92, and 272.90 mg N dm−3 soil, respectively. Nitrogen doses influenced the initial development of the corn crop.

scholarly journals EFFECT OF BACTERIAL BIOFERTILIZER AND COMPOST ON THE GROWTH OF TOMATO PLANT

2016 ◽  
Vol 47 (6) ◽  
Author(s):  
Salman & Al-Whaab
Keyword(s):  
Tomato Plant ◽  
Dry Matter ◽  
Plant Protection ◽  
Sandy Loam ◽  
Organic Fertilizer ◽  
Azotobacter Chroococcum ◽  
Tomato Plants ◽  
Randomized Design ◽  
Dry Matter Weight ◽  
Preparation Plant

A pot experiment was conducted at Baghdad site for organic fertilizer  preparation  Plant Protection Directorate during summer of 2014-2015, using sandy Loam texture soil to study the effect of bacterial bio-fertilizer ( Azotobacter  chroococcum  and  Pseudomonas   fluorescens ) and  Compost  on  growth  and  nutrients  content  of  tomato  plants    "Super  queen". Eight treatments were used included  (Control , Azotobacter , pseudomonas, Azotobacter+ psuedomonas , Compost , Azotobacter + Compost  ,  Compost+  psuedomonas , Azotobacter +  psuedomonas + Compost). Complete  Randomized   Design ( CRD ) with 5 replicates was used. Results  showed  that  application of di bacterial  bio-fertilizer (AP) increased  significantly  dry mater weight  and N , P , K nutrients  content  for  shoots    with an increment of 36.4%,74.4%,76.0% and 64.9% respectively compared to control. Results  showed  that  application of di bacterial  bio-fertilizer (AP)  and compost  increased  significantly dry matter weight and N , P , K  nutrients content for shoot with increment  percentage of 95.3%  239.3% , 219.2% and 266.8%  respectively  compared  to  control.

scholarly journals PENGARUH JARAK TANAM TERHADAP PRODUKTIVITAS INDIGOFERA (Indigofera zolingeriana) DI AREAL TERBUKA

ZOOTEC ◽  
2020 ◽  
Vol 40 (2) ◽  
pp. 714
Author(s):  
Wemiles Morip ◽  
S.D. Anis ◽  
M.M. Telleng ◽  
C. I. J. Sumolang
Keyword(s):  
Analysis Of Variance ◽  
Dry Matter ◽  
Fresh Weight ◽  
Fresh Leaf ◽  
Leaf Weight ◽  
Randomized Design ◽  
Indigofera Zollingeriana ◽  
Completely Randomized Design ◽  
Dry Matter Weight

The Effect of Planting Space On Productivity of Indigofera (Indigofera zollingeriana) in Full Sun Area. The purpose of this research was determines the productivity of Indigofera zollingeriana with three different planting space. This experiment was conducted using Completely Randomized Design (CRD). The treatment consisted of three planting space, (1) 1.0 m x 0.5 m, (2) 1.0 m x 1.0 m, and (3) 1.0 m x 1.5 m, each treatment had six replications. Data were analyzed using analysis of variance and HSD test. The variables measured were fresh and dried stem weight, fresh and dried leaf weight. The results showed that planting space were significant different (P<0.01) on fresh and dried stem weight, fresh and dried leaf weight.  HSD test showed that planting space 1.0 m x 1.5 m were significant (P<0.01) have higher stem fresh weight, stem dry matter weight, fresh leaf weight and leaf dry matter weight than planting space 1.0 m x 1.0 m and 1.0 m x 0.5 m. It can be concluded that planting space 1.0 m x 1.5 m have the highest productivity that were highest stem freshweight, stem dry matter weight, leaf freshweight and leaf dry matter weight.Key words: Indigofera zollingeriana, planting space, productivity

scholarly journals Development and root morphology of passion fruit in different substrates

2018 ◽  
Vol 12 (2) ◽  
pp. 514-520
Author(s):  
Karminne Dias do Valle ◽  
Laísse Danielle Pereira ◽  
Moab Acácio Barbosa ◽  
Vanessa Brenda Souza Chaves ◽  
Pedro Henrique Magalhães de Souza ◽  
...  
Keyword(s):  
Dry Matter ◽  
Passion Fruit ◽  
Chicken Manure ◽  
Fresh Matter ◽  
Passiflora Edulis ◽  
Initial Development ◽  
Initial Formation ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Yellow Passion Fruit

Among the factors that contribute to better initial development of plants, it is the substrate used. Therefore, this study aimed to evaluate the effect of substrate in initial formation and morphology of the roots of two species of passion fruits. The analyses were done in the nursery of the Federal University of Goiás (UFG), Regional Jataí, Brazil, with a light interception of 60%. The material used were seeds of yellow passion fruit (Passiflora edulis f. flavicarpa) and the cultivar FB 200 (Flora Brasil), harvested in the UFG experimental field. They were sown in three types of substrates: Soil I (mixture of soil, chicken manure and sand in a ratio of 2:1:1 by volume), soil II (steep bank), and Bioplant®, using for plants perforated bags with a capacity of 1.5 L. The experimental design was a completely randomized design with six treatments, eight replications and four plants per plot. After 30 days of sowing, fresh matter of root, root dry matter and morphology were evaluated. The substrate affected the initial development of yellow passion fruit, obtaining the best results with Bioplant®, showing as promising for the development of all the evaluated characteristics.

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