scholarly journals Análise da emergência e desenvolvimento inicial de plântulas de Handroanthus roseo-albus (Ridl.) Mattos e Handroanthus serratifolius (Vahl) S.O.Grose sobre diferentes tipos de substratos

2021 ◽  
Vol 1 (53) ◽  
pp. 18
Author(s):  
Regimonica Craveiro Da Silva ◽  
Bruno Aurélio Campos Aguiar ◽  
Taiuan Bruno Almeida Gomes ◽  
Milena Oliveira Xavier ◽  
Euclides Figuerêdo Fonseca ◽  
...  
Keyword(s):  
Quality Index ◽  
Aerial Part ◽  
Dry Matter ◽  
Direct Relationship ◽  
Morphological Characteristics ◽  
Rice Husks ◽  
Initial Development ◽  
Emergence Percentage ◽  
Rate Of Emergence ◽  
Dickson Quality Index

<p class="Normal1"><span class="fontstyle0">The formation of quality forest seedlings has a direct relationship with the substrates that will be used; the germination of seeds and the formation of the root system and the aerial part are associated with the particular characteristics of each substrate. Therefore, the study aimed to evaluate the influence of different substrates on the formation of ipê-branco and ipê-amarelo seedlings. The experimental design adopted was completely random, with the treatments distributed in a 2 x 5 factorial arrangement (2 species and 5 substrates), with 4 replications. We used the following components to compose the substrates: carbonized rice husks (CAC), fresh rice husks (CA), autoclaved for two hours at 120 °C, commercial substrate (SC) Bioflora, washed sand (AL), and bovine manure (EB). The study was arranged in five treatments: treatment 1 - CAC, treatment 2 - CA, treatment 3 - SC, treatment 4 - AL and treatment 5 - EB. The following morphological characteristics have been evaluated: Collection diameter, height of the seedlings and the Dickson Quality Index (DQI) of the seedlings, which was obtained through the variables: weight of total dry matter (TWMW), weight of dry matter of the aerial part (TWMW), weight of dry matter of the root (RWMW), H and DC. The emergence speed and the emergence percentage index were lower for both species in the treatment containing 100% in natura rice husk. The commercial substrate Bioflora, enabled good performance in the emergence of both species, obtaining satisfactory results in terms of the percentage rate of emergence and a higher speed of emergence between treatments. The bovine manure substrate obtained superior results in the initial development for both Handroanthus serratifolius (Vahl) S.O.Grose and Handroanthus roseo-albus (Ridl.) Mattos.</span><br /><br /></p>

scholarly journals EFFECT OF PHOSPHATE FERTILIZATION AND BASE SATURATION OF SUBSTRATE ON THE SEEDLINGS GROWTH AND QUALITY OF Plathymenia foliolosa Benth.

2017 ◽  
Vol 41 (1) ◽  
Author(s):  
Eliane Cristina Sampaio de Freitas ◽  
Haroldo Nogueira de Paiva ◽  
Helio Garcia Leite ◽  
Sílvio Nolasco de Oliveira Neto
Keyword(s):  
Factorial Design ◽  
Quality Index ◽  
Aerial Part ◽  
Dry Matter ◽  
Base Saturation ◽  
Phosphate Fertilization ◽  
Neck Diameter ◽  
Dickson Quality Index

ABSTRACT This study aimed to evaluate the growth and quality of seedlings of Plathymenia foliolosa Benth in response to base saturation of substrate and phosphate fertilization. The treatments were arranged in a factorial design of 6 P levels (0, 120, 240, 360, 480 and 600 mg dm-3) by 5 base saturation levels (3.5, 25, 40, 55, 70 %), in randomized blocks with four replications. The height of aerial part, neck diameter, shoot dry matter, root dry matter and total dry matter were determined at 118 days after the transplanting. It was still calculated the relation shoot dry matter/root dry matter and the Dickson Quality Index. There were significant effects of the phosphate fertilization for all studied variables. The base saturation had influence on all studied variables, except for the shoot dry matter/root dry matter relation. No significant effect of the interaction between base saturation of substrate and phosphate fertilization was observed on seedlings growth and quality. For the studied conditions, it is recommended 300 mg dm-3 of P for the production of quality seedlings of Plathymenia foliolosa without the necessity of liming.

scholarly journals Initial Growth of Physalis peruviana L. Seedlings on Different Substrates

2020 ◽  
pp. 1-7
Author(s):  
Jeniffer Ribeiro de Oliveira ◽  
Mayara Nascimento Santos ◽  
Joabe Martins de Souza ◽  
Vinícius de Souza Oliveira ◽  
Mariana Alexandre Alves Amourim
Keyword(s):  
Quality Index ◽  
Aerial Part ◽  
Dry Matter ◽  
Initial Growth ◽  
Fresh Matter ◽  
Physalis Peruviana ◽  
Seedling Root ◽  
Number Of Leaves ◽  
Mean Time ◽  
Dickson Quality Index

The substrate is one of the most important factors in the formation of the seedling and must present conditions suitable for germination and development of the seedling root system. The objective of this work was to evaluate the effect of different substrates on the initial growth of Physalis peruviana L. seedlings. The experiment was conducted at the Experimental Farm, of the Federal University of Espírito Santo– São Mateus (Brazil). The experimental design used was completely randomized, with three treatments (Soil, Provaso® and Bioplant®), seven replications and seven plants per plot, using seeds with 427 days of storage. At 56 days after sowing, the 10 most vigorous seedlings were selected for evaluation. The following characteristics were evaluated: percentage of emergence, emergence speed index (ESI), mean time of emergence (MET), number of leaves (NL), stem diameter (SD), aerial part length (APL), aerial part fresh matter (APFM), aerial part dry matter (APDM), root fresh matter (RFM), root dry matter (RDM) and Dickson quality index (DQI). The Provaso® substrate showed the best performance in all studied variables, being recommended for the production of Physalis seedlings.

scholarly journals Estimates of genetic gains for growth traits in young plants of Eucalyptus urophylla S. T. Blake

CERNE ◽  
2011 ◽  
Vol 17 (2) ◽  
pp. 189-193 ◽  
Author(s):  
Thais Galhardo Godoy ◽  
Sebastião Carlos da Silva Rosado
Keyword(s):  
Quality Index ◽  
Dry Matter ◽  
Growth Traits ◽  
Block Design ◽  
Genetic Gains ◽  
Random Block ◽  
Collar Diameter ◽  
Random Block Design ◽  
Root Collar ◽  
Dickson Quality Index

The objective of this study was the selection of superior genotypes for growth traits, correlating them to initial height growth in the field, at age eight months. A random block design was used in the nursery, with eight clones, three replicates and four plants per plot. And a random block design was also used in the field, with eight clones, four replicate blocks and nine plants per plot. Data being analyzed in the nursery at age 120 days included: height of field seedling, at age eight months (Hc), height of nursery seedling (Hm), root collar diameter (Dc), shoot diameter (Db), shoot dry matter (PMSPA), root dry matter (PMSR), total dry matter (PMST), ratio of shoot dry matter to root dry matter (PMSPA/PMSR), Dickson quality index of root collar diameter (IQD-Dc), Dickson quality index of shoot diameter (IQD-Db). Analyses of variance showed that significant genetic differences exist among clones for all traits and, given the high heritability values found, the estimated genetic gains were generically very high. As for predicted indirect genetic gain, selection in nursery seedlings for Dc, PMSPA/PMSR, IQD-Dc provided the highest values of indirect gain in field seedling height.

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 Initial growth of Moringa oleifera Lam. as a function of poultry litter doses and granulometry

2018 ◽  
Vol 48 (4) ◽  
pp. 399-406
Author(s):  
Francisco Marto de Souza ◽  
Walter Esfrain Pereira ◽  
Jussara Silva Dantas ◽  
Jackson Silva Nóbrega ◽  
Ellen Caroline Santos Lima ◽  
...  
Keyword(s):  
Particle Size ◽  
Plant Height ◽  
Quality Index ◽  
Dry Matter ◽  
Moringa Oleifera ◽  
Poultry Litter ◽  
Root Diameter ◽  
Initial Growth ◽  
Dickson Quality Index ◽  
Moringa Oleifera Lam

ABSTRACT There is an increasing use of poultry litter in seedling production. However, studies regarding the effect of different particle-size litter on plant growth are still scarce. This study aimed to evaluate the growth of Moringa oleifera Lam. fertilized with poultry litter doses (0 g dm-3, 40 g dm-3, 80 g dm-3 and 120 g dm-3) with distinct particle sizes (1 mm and 4 mm), with four replications. The following variables were evaluated: plant height; root and stem diameter; leaf, stem, shoot and root dry matter mass; shoot/root dry matter mass ratio; and the Dickson quality index. There was no influence of the particle size on the studied variables, except for plant height. The root diameter decreased with the increase of the poultry litter doses. The accumulation of dry matter mass from the shoot and root increased with the increase of poultry litter doses up to 120 g dm-3. A linear increase of the Dickson quality index, relatively to days and poultry litter doses, was observed. It is recommended to apply 80 g dm-3 of poultry litter to fertilize M. oleifera plants, independently of the granulometry used.

scholarly journals QUALITY OF CUCUMBER SEEDLINGS GROWN IN DIFFERENT CONTAINERS

2016 ◽  
Vol 3 (1) ◽  
pp. 33-38
Author(s):  
Bruna Finotii Fonseca Reis de Mello ◽  
Mateus Vieira Trevisan ◽  
Fábio Steiner
Keyword(s):  
Quality Index ◽  
Dry Matter ◽  
Vegetable Production ◽  
High Quality ◽  
Cucumis Sativus L ◽  
Cucumber Seedlings ◽  
Key Factor ◽  
Design Characteristics ◽  
Dickson Quality Index

The use of high quality seedlings is a key factor for the success of vegetable production, and the container size and design characteristics of the containers are important determinants of seedling quality. A experiment was conducted to investigate the effects of different container types on quality of cucumber seedlings (Cucumis sativus L., cv. Aodai Melhorado). Seedlings were grown in a seedling nursery with shadow protection at 50% in different containers: (i) 128-cell trays; (ii) 64-cell trays; (iii) tubes of 120 cm3; and (iv) plastic cups of 180 cm3. The plant height, diameter, root length, shoot dry matter, root dry matter, sturdiness quotient (SQ), shoot:root dry matter ratio (SRR) and Dickson quality index (DQI) were measured at 21st days after sowing. The production of cucumber seedlings in 64-cell trays, polypropylene tubes of 120 cm3 and plastic cups of 180 cm3 resulted in the highest values for the majority of investigated traits. The tray of 128-cells results in lower quality cucumber seedlings compared to other containers. Tubes with volume of 120 cm3 and plastic cups with volume of 180 cm3 are more appropriate containers for the production of high quality cucumber seedlings. The DQI is a good indicator of the standard of quality of cucumber seedlings.

scholarly journals EFEITO DE TELAS DE SOMBREAMENTO NO CRESCIMENTO E PROTEÇÃO DE MUDAS DE Toona ciliata SOB BAIXAS TEMPERATURAS

FLORESTA ◽  
2014 ◽  
Vol 44 (4) ◽  
pp. 607
Author(s):  
Rudinei De Marco ◽  
Bruno Conte ◽  
Edison Rogério Perrando ◽  
Fabiano De Oliveira Fortes ◽  
Lucindo Somavilla ◽  
...  
Keyword(s):  
Adverse Effect ◽  
Low Temperatures ◽  
Quality Index ◽  
Aerial Part ◽  
Single Layer ◽  
Dry Mass ◽  
Plastic Bags ◽  
Toona Ciliata ◽  
Santa Maria ◽  
Dickson Quality Index

O objetivo deste trabalho foi avaliar a influência de diferentes camadas de telas de sombreamento no crescimento e na proteção de mudas de Toona ciliata em períodos de suscetibilidade a geadas. O estudo foi conduzido na Universidade Federal de Santa Maria, Campus Frederico Westphalen, RS. Para a realização do experimento, mudas de Toona ciliata foram mantidas em sacos plásticos com capacidade de três litros e submetidas a quatro tratamentos: mudas sem proteção e mudas sob proteção com camada simples, dupla e tripla de sombreamento. O delineamento foi o inteiramente casualizado, com quatro repetições de oito mudas por repetição. Foi avaliado o número de mudas com folhas apicais necrosadas, a altura da parte aérea, o diâmetro do colo e a massa seca radicular, aérea e total. Por meio dessas variáveis, foi possível determinar o Índice de Produtividade, o Índice de Qualidade de Dickson e as relações altura/diâmetro e altura/massa seca da parte aérea. A utilização de telas de sombreamento mostrou-se eficiente para a proteção das mudas contra o efeito adverso da geada. O uso de uma camada simples de sombreamento resultou em maior proteção e consequentemente forneceu as melhores características dendrométricas em relação às demais intensidades de sombreamento.Palavras-chave: Tela de proteção; tolerância à geada; cedro australiano. AbstractEffect of shading screens on growth and protection of Toona ciliata seedlings under low temperatures. This research aimed to evaluate the influence of different shading screens layers on the growth and protection of Toona ciliata seedlings in periods of frost susceptibility. The research was conducted on the Santa Maria Federal University, Frederico Westphalen Campus, RS. For the experiment, Toona ciliata seedlings maintained in plastic bags with three liters of capacity each were submitted to four treatments: unprotected seedlings, seedlings under protection with a single shading layer, double and triple. The experimental design was the completely randomized, with four repetitions of eight seedlings each. It was evaluated the number of seedlings with necrosed apical leaves, the aerial part height, the lap diameter and the dry mass of root, aerial and total. By such variables, it was possible to determine the Produtivity Index, the Dickson Quality Index and the relations height/diameter and height/dry mass of aerial part. The use of shading screens showed up efficient to protect the seedlings against the adverse effect of frost. The use of a single layer of shading resulted in a greater protection and consequently provided the best dendrometric characteristics, compared to the others levels of shading.Keywords: Screen protection; tolerance to frost; Australian cedar.

scholarly journals Silicon alters early development of bean seedlings from seeds infected by Anthracnose

2021 ◽  
Vol 17 (3) ◽  
pp. 39-51
Author(s):  
Patrícia Migliorini ◽  
Cristina Rossetti ◽  
Andreia da Silva Almeida ◽  
Bruna Barreto Reis ◽  
Gustavo Fonseca Rodrigues ◽  
...  
Keyword(s):  
Early Development ◽  
Root Length ◽  
Aerial Part ◽  
Dry Matter ◽  
Dry Mass ◽  
Colletotrichum Lindemuthianum ◽  
Seed Coating ◽  
Germination Test ◽  
Initial Development ◽  
Seedling Length

The present study aimed to evaluate the effect of seed coating with Si in response to infection in a cultivar susceptible and resistant to Colletotrichum lindemuthianum, on the physiological and health potential of seeds and seedlings, during the initial development of bean culture. The experiment was carried out in a completely randomizeddesign, in a 2 × 2 × 2 factorial scheme, with four replications, where the factors were: cultivar (BRS Esplendor and IPR Tuiuiú), silicate application (with and without Agrosilício® coating) and inoculation (seeds inoculated or not with C. lindemuthianum). In the evaluation of the initial development of the culture, the following variables were measured: germination, first count of the germination test, emergence, emergence speed index (IVE), total seedling length, shoot and root length, total dry mass, aerial part dry matter, root dry matter and aerial part dry matter at 15 days after sowing (DAS). The incidence of C. lindemuthianumin beans was determined by the paper roll method. Covering the seeds with Si reduces the incidence and severity of C. lindemuthianumand provides greater growth of bean seedlings. The effect of responses potentiated by Si is more expressive in the cultivar of greater susceptibility.

scholarly journals Growth of young Tabebuia aurea seedlings under irrigation with wastewater from fish farming

2016 ◽  
Vol 20 (6) ◽  
pp. 519-524 ◽  
Author(s):  
José R. de S. Pinto ◽  
Rômulo M. O. de Freitas ◽  
Tiago de S. Leite ◽  
Francisco de A. de Oliveira ◽  
Hugo Ferreira ◽  
...  
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Quality Index ◽  
Dry Matter ◽  
Fish Farming ◽  
Diameter Ratio ◽  
Stem Diameter ◽  
Individual Leaf ◽  
Experiment Individual ◽  
Dickson Quality Index

ABSTRACT This study aimed to evaluate the growth of young Tabebuia aurea seedlings irrigated with different concentrations of wastewater from fish farming. The experiment was conducted in a seedling nursery, from June to August 2013. The treatments consisted of five concentrations of wastewater from fish farming diluted in freshwater (0, 25, 50, 75 and 100% of wastewater). Plant height, stem diameter and plant height/stem diameter ratio were evaluated every 15 days to verify the effects of treatments on seedlings growth. At the end of the experiment, individual leaf area, leaf area, leaf dry matter, stem dry matter, root dry matter, total dry matter and Dickson quality index were also evaluated. The reuse of wastewater from fish farming diluted at concentrations of 25 and 50% in freshwater is a viable alternative in the production of Tabebuia aurea seedlings. However, higher concentrations hinder the production of seedlings of this species.

scholarly journals Growth and quality of mangosteen seedlings (Garcinia mangostana L.) in response to the application of humic acids

2019 ◽  
Vol 41 (1) ◽  
Author(s):  
Gedeon Almeida Gomes Júnior ◽  
Rafaela Alves Pereira ◽  
George Andrade Sodré ◽  
Eduardo Gross
Keyword(s):  
Humic Acids ◽  
Quality Index ◽  
Dry Matter ◽  
Growth Promoter ◽  
Seedling Production ◽  
Garcinia Mangostana ◽  
Number Of Leaves ◽  
The One ◽  
Dickson Quality Index

Abstract The time of formation of mangosteen seedlings propagated by seeds can be considered as the biggest difficulty in the seedling production system of this species. Considering that the use of humic acids as a growth promoter has been well documented in some species, the objective of this work was to evaluate the growth of mangosteen seedlings in response to the application of humic acid (HA) doses extracted from vermicompost (0; 2; 20; 40; 200 mg C L-1). Growth rate was determined using the following variables: stem diameter, plant height, number of leaves, leaf area, stem dry matter, leaf dry matter, shoot dry matter, root dry matter, total dry matter and Dickson quality index . The dose 150 mg C L-1 was the one that approached the maximum values and therefore should be recommended for the production of seedlings. The results at 240 days after planting (DAP) showed that the HA increased the growth of mangosteen seedlings, helping to reduce the time of seedling formation under conditions for permanent planting.

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