|
|
|
| Registros recuperados: 13 | |
|
| |
|
|
| Carvalho,Perla Silva Matos de; Franco,Laís Barreto; Silva,Samuel de Assis; Sodré,George Andrade; Queiroz,Daniel Marçal de; Lima,Julião Soares de Souza. |
| ABSTRACT: The use of management zones has ensured yield success for numerous agricultural crops. In spite of this potential, studies applying precision agricultural techniques to cacao plantations are scarce or almost nonexistent. The aim of the present study was to delineate management zones for cacao crop, create maps combining soil physical properties and cacao tree yield, and identify what combinations best fit within the soil chemical properties. The study was conducted in 2014 on a cacao plantation in a Nitossolo Háplico Eutrófico (Rhodic Paleudult) in Bahia, Brazil. Soil samples were collected in a regular sampling grid with 120 sampling points in the 0.00-0.20 m soil layer, and pH(H2O), P, K+, Ca2+, Mg2+, Na+, H+Al, Fe, Zn, Cu, Mn, SB, V, TOC,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Precision agriculture; Unsupervised classification; Soil fertility. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100312 |
| |
|
|
| Sodré,George Andrade; Corá,José Eduardo; Brandão,Isabel Cristina Silva Fontes Lima; Serôdio,Maria Helena de Carvalho Fernandes. |
| O objetivo deste trabalho foi realizar monitoramento químico de seis substratos utilizados na produção de mudas de cacaueiros. Os substratos receberam 10 volumes (100mL, cada) de água destilada, e no lixiviado coletado foram determinados o pH, a condutividade elétrica (CE) e os teores de sódio (Na) e potássio (K) em solução. Os valores de pH variaram de 5,0 a 8,0 em Plantmax® e composto do tegumento da amêndoa do cacau (CTAC), respectivamente. Verificou-se que, a partir do primeiro volume lixiviado, a CE de todos os substratos foi reduzida. Foram encontradas correlações positivas para a CE em relação ao K e Na da fibra de coco (FC) (r=0,83 e 0,72 P<0,05) e CTAC (r=0,98 e 0,99 P<0,05). Os resultados indicam que a FC e o CTAC deveriam ser usados após... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Theobroma cacao L; Método Pour Thru; Lixiviados de substratos. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452005000300042 |
| |
|
| |
|
|
| Sodré,George Andrade; Gomes,Augusto Roberto Sena. |
| Abstract The vegetative propagation in cacao has been used in Central America since the beginning of the last century. However, only from the end of the century this technique has been intensified in the state of Bahia, where vegetative propagation changes have increased the yield of cocoa growing areas, especially those using other technologies associated with clonal seedlings. The use of clonal garden to collect stems in nursery can reduce by 80% the space required for maintenance of stock plants. On the other hand, the buds obtained from orthotropic and plagiotropic shoots are used to improve the performance protocols and reduce production costs of seedlings. Among the current and future challenges in the production of cocoa seedlings emphasizes the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Theobroma cacao L; Clones; Grafting; Nursery. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000201003 |
| |
|
|
| Queiroz,Giovanna Alcântara; Silva,Pedro Henrique Lopes; Oliveira,Rosilene Aparecida de; Sodré,George Andrade; Costa,Larissa Corrêa do Bomfim. |
| ABSTRACT: Medicinal plants are generally commercialized dried. However, temperatures used in their drying processes may interfere with the content and chemical composition of their essential oils. The Lippia origanoides possesses thymol in the essential oil that is stored in glandular trichomes. Thymol is a major component of economic importance in the chemical and pharmaceutical industry. The objective of this study was to evaluate the effect of the drying temperatures of L. origanoides leaves regarding trichome integrity, content, and chemical composition of the essential oil. The experimental design was completely randomized with four treatments defined by oven drying temperatures (40, 50, 60, and 70ºC) and four replications. Essential oil was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lippia origanoides; Medicinal plant; Secretory structures; Drying; Thymol. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001100404 |
| |
|
| |
|
|
| Gomes Júnior,Gedeon Almeida; Pereira,Rafaela Alves; Sodré,George Andrade; Gross,Eduardo. |
| 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Quality index; Vermicompost; Humate. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000101002 |
| |
|
|
| Gomes Júnior,Gedeon Almeida; Pereira,Rafaela Alves; Sodré,George Andrade; Sacramneto,Célio Kersul do; Gross,Eduardo. |
| Abstract The aim of this study was to evaluate the effect of arbuscular mycorrhizal fungi inoculation (AMF - Acaulospora scrobiculata, Acaulospora colombiana and the mixture of these inocula) and doses of organic compost obtained from cocoa shell (0, 5, 10, 20 and 30 g dm-3) on “Morada” soursop seedlings. The experimental design was a randomized block with 4 blocks in a 5 x 4 factorial scheme (AMF x organic compost). After 120 days of growth, it was observed that AMF inoculation increased height, stem diameter and shoot, root and total dry biomass. Organic compost stimulated mycorrhizal colonization and the number of spores with the addition up to 10 g dm-3. Mycorrhizal inoculation promoted increases of P content in soursop leaves. Control plants did not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycorrhiza; Seedling production; Residues; Composting. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000503001 |
| |
|
| |
|
|
| Figueirêdo,Geórgia Roberta Gomes de; Vilasboas,Felipe Silveira; Oliveira,Sérgio José Ribeiro de; Sodré,George Andrade; Sacramento,Célio Kersul do. |
| Avaliou-se o enraizamento de miniestacas de gravioleira (Annona muricata L.), utilizando-se de estacas apicais e subapicais herbáceas coletadas em plantas cultivadas no campo e em casa de vegetação. O experimento foi conduzido em delineamento inteiramente casualizado, em esquema fatorial 4 x 2, sendo 4 tipos de miniestacas (apical herbácea do campo e viveiro, subapical herbácea do campo e de viveiro) e 2 níveis de reguladores de crescimento (0 e 6.000 mg kg-1), totalizando 8 tratamentos e 3 repetições, com 12 estacas por parcela. As miniestacas foram padronizadas com sete centímetros de comprimento e tratadas ou não com ácido indolbutírico, colocadas em tubetes contendo substrato comercial e mantidas em câmara de nebulização. Aos 80 dias após o... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Annona muricata L.; Enraizamento; Ácido indolbutírico. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000300024 |
| |
|
|
| Gomes Júnior,Gedeon Almeida; Pereira,Rafaela Alves; Santos,Danillo José dos; Sodré,George Andrade; Gross,Eduardo. |
| Abstract An obstacle to the production of mangosteen seedlings (Garcinia mangostana L.) is the long nursery time of approximately two years. Among other factors, the identification of a suitable substrate for seedling production from this species is a preponderant factor to reduce nursery time. This study aimed to evaluate the growth of seminal mangosteen seedlings grown in four different substrate compositions. Growth rate was determined using the following variables: stem diameter, plant height, stem dry mass, leaf dry mass, shoot dry mass, root dry mass, total dry mass and Dickson Quality Index (DQI). The substrate S1 (sphagnum turf and vermiculite) was superior to substrates S2 (pinus bark and vermiculite), S3 (pinus bark and coconut fiber) and S4... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Garcinia mangostana L.; DQI; Rooting. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000301004 |
| |
|
|
| Souza Júnior,José Olimpio de; Carmello,Quirino Augusto de Camargo; Sodré,George Andrade. |
| Para avaliar o efeito de substratos e da adubação fosfatada sobre a produção de mudas de cacaueiro, bem como definir doses recomendáveis e nível crítico foliar de P, fez-se um experimento fatorial 5 x 5 + 1: cinco substratos (misturas de fibra de coco (FC) e Plantmax florestal estaca®), cinco doses de P no plantio (de 0 a 800 mg dm-3) e um tratamento adicional (P aplicado aos 30 dias). As parcelas iniciais e úteis continham, respectivamente, 27 estacas e 12 mudas (uma estaca/muda por tubete). A partir do 62º dia, aplicaram-se adubações semanais com N e K, e aos 120 dias, com P (20 mg dm-3), em todos os tratamentos. Aos 150 dias foram avaliados: diâmetro, altura, área foliar, massa de matéria seca da parte aérea e das raízes (finas e grossas), concentração... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Theobroma cacao; Nutrição; Nível crítico; Cultivo sem solo. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000100014 |
| |
| Registros recuperados: 13 | |
|
|
|
