scholarly journals Produção de mudas de maracujazeiro amarelo com diferentes tipos de enxertia e uso da câmara úmida

Author(s):  
R. M. da Silva ◽  
A. V. M. de Aguiar ◽  
V. Mendonça ◽  
E. De A. Cardoso ◽  
K. G. V. Garcia

<p>O objetivo deste trabalho foi avaliar a combinação de três formas de realização da enxertia pelo método de garfagem e uso da proteção da enxertia com câmara úmida na a produção de mudas de maracujazeiro. O delineamento experimental adotado foi o de blocos ao acaso em esquema fatorial (3x2), com seis repetições, sendo cada parcela constituída de nove plantas, os fatores formaram as combinações de três formas de realização da enxertia pelo método de garfagem (fenda cheia, fenda lateral e fenda simples) e utilização e não do uso da proteção da enxertia com câmara úmida. Para produção das mudas dos portaenxertos e enxertos foram utilizadas sementes das cultivares FB 100 e redondo amarelo respectivamente. As enxertias foram realizadas aos 70 dias após a semeadura. Aos 21 dias após as enxertias foi avaliada a porcentagem de pegamento e a cada 14 dias após a enxertia avaliou-se a sobrevivência de plantas que permaneceram vivas, aos 56 dias avaliou-se o número de folhas, diâmetro do enxerto e portaenxerto, altura da planta e massa seca da parte aérea. Os tipos de enxertias por fenda cheia e fenda lateral, associadas ao uso da proteção com câmara úmida promoveram os melhores índices de pegamento e sobrevivência das mudas de maracujazeiro amarelo, porém o uso proteção promoveu um decréscimo no crescimento das plantas.</p><p align="center"><strong><em>Seedling production of yellow passionfruit with different types of graft and use of humid chamber</em></strong></p><p><strong>Abstract</strong><strong>: </strong>The objective at this search was to evaluate the combination of three forms of grafting by the grafting method and grafting using protection with damp in the production of passion fruit seedlings camera. The experimental design was randomized blocks in a 3x2 factorial arrangement with six replications, each plot were nine plants, the factors formed the combinations of three embodiments by the grafting method (cleft, crack and lateral simple) and crack use and not use protection grafting with moist chamber. Seedlings rootstocks production and grafts seeds of cultivars were used respectively FB 100 and round yellow respectively. The grafts were performed at 70 days after sowing. At 21 days after grafting was evaluated the percentage of fruit set and every 14 days after grafting, we evaluated the plants survival that remained alive, at 56 days assessed the number of leaves, rootstock and graft diameter, plant height and dry weight of shoots. The types of grafts for full and side slit slit associated with the use of protective moist chamber provided better rates of survival and fixation of passion fruit seedlings, however, the use protection caused a decrease in plant growth.<strong> </strong></p><p><strong> </strong></p>

Irriga ◽  
2017 ◽  
Vol 22 (2) ◽  
pp. 204-219 ◽  
Author(s):  
Mariana Lays Andrade Oliveira ◽  
Vital Pedro da Silva Paz ◽  
Karoline Santos Gonçalves ◽  
Greice Ximena Santos Oliveira

Crescimento e Produção de girassol ornamental irrigado com diferentes lâminas E diluições de água residuária  MARIANA LAYS ANDRADE OLIVEIRA¹; VITAL PEDRO DA SILVA PAZ²; KAROLINE SANTOS GONÇALVES³ E GREICE XIMENA SANTOS OLIVEIRA4 ¹Núcleo de Engenharia de Água e Solo, Universidade Federal do Recôncavo da Bahia, UFRB, Cruz das Almas, BA, [email protected]²Programa de Pós-Graduação em Engenharia Agrícola, Universidade Federal do Recôncavo da Bahia, UFRB, Cruz das Almas, BA, [email protected]³Programa de Pós-Graduação em Engenharia Agrícola, Universidade Federal do Recôncavo da Bahia, UFRB, Cruz das Almas, BA, [email protected] do Meio Ambiente e Recursos Hídricos do Estado da Bahia, Salvador, BA, [email protected]  1 RESUMO O objetivo deste trabalho foi avaliar o crescimento e a produção de girassol ornamental submetido à irrigação com diferentes lâminas e diluições de água residuária. O experimento foi conduzido em delineamento experimental inteiramente casualizado em esquema fatorial 5x4 com 4 repetições, em casa de vegetação no Núcleo de Engenharia de Água e Solo (NEAS), pertencente à Universidade Federal do Recôncavo da Bahia, localizada no município de Cruz das Almas - BA. A cultivar utilizada foi a Anão de Jardim e os tratamentos foram constituídos por cinco concentrações de água residuária diluídas em água de abastecimento (0, 25, 50, 75 e 100%) e quatro lâminas de irrigação obtidas a partir das percentagens de evaporação do tanque classe A (70, 90, 110 e 130%). As variáveis analisadas foram: altura da planta (AP), diâmetro do caule (DC), número de folhas (NF), massa fresca e seca da parte aérea (MFPA e MSPA), dias para o aparecimento de botões florais (DABF), dias para o período de floração (DPF), dias para abertura total dos capítulos (DATC), diâmetros internos e externos dos capítulos (DI e DE), massa fresca e seca dos capítulos (MFC e MSC), além da estimativa do consumo hídrico da planta (CH). Os resultados obtidos mostraram que, com exceção da AP, todas as variáveis foram influenciadas pelas lâminas de irrigação ou pelas diluições de água residuária, não havendo influência significativa da interação entre os fatores para nenhuma das variáreis avaliadas. O uso de água residuária e a lâmina de 110% da evaporação do tanque classe A favoreceram o desenvolvimento do girassol. O menor e maior consumo hídrico da cultura foi observado nas lâminas de 70 e 130%, respectivamente. Palavras-chave: Reuso, cv. Anão de jardim, tanque Classe A.  OLIVEIRA, M. L. A.; PAZ, V. P. da S.; GONÇALVES, K. S.; OLIVEIRA, G. X. S.GROWTH AND PRODUCTION OF ORNAMENTAL SUNFLOWER IRRIGATED WITH DIFFERENT DEPTHS AND CONCENTRATIONS OF WASTEWATER    2 ABSTRACT The aim of this study was to evaluate the ornamental sunflower production subjected to different depths and concentration of wastewater. The experiment was conducted in experimental design completely randomized in a factorial 5x4 with 4 repetitions in a greenhouse at the Center of Water and Soil Engineering (NEAS), of the Federal University of Recôncavo da Bahia, located in Cruz das Almas, BA, Brazil. The cultivar used was cv. Anão de Jardim and the treatments consisted of five wastewater concentrations diluted in water supply (0, 25, 50, 75 and 100%) and four irrigations blades obtained through evaporation of the percentages of the class A pan (70, 90 , 110 and 130%). The variables analyzed were: plant height (AP), stem diameter (DC), number of leaves (NF), fresh and dry weight of the aerial part (MFPA and MSPA), days for the appearance of flower buds (DABF), days to flowering period (DPF), days for full opening of chapters (DATC), internal and external diameters of the chapters (DI and DE), fresh and dry weight of chapters (MFC and MSC), and the estimate of water consumption plant. The results showed that, except for the AP, all variables were influenced by the irrigation blades or the wastewater concentrations, and there was no significant influence of interaction between factors for any evaluated variables. The use of wastewater and 110% evaporation of the class A pan depth favored the development of sunflower. The lower and higher water consumption of the culture was observed in depths 70% and 130%, respectively. Keywords: reuse, cv. Anão de Jardim, class A pan.


2018 ◽  
Vol 33 (1) ◽  
pp. 81
Author(s):  
Rafael Augusto Ferraz ◽  
Sarita Leonel ◽  
Jackson Mirellys Azevedo Souza ◽  
Marcelo de Souza Silva ◽  
Bruno Henrique Leite Gonçalves

O presente trabalho teve como objetivo avaliar o desempenho propagativo de estacas semilenhosas de variedades de figueira, com o uso de ácido indolbutírico. As variedades avaliadas foram Roxo de Valinhos, White Genova, PI – 189 e Troiano e a dosagem empregada do ácido indolbutírico foi 2000 mg L-1. O delineamento experimental utilizado foi o inteiramente ao acaso, em esquema fatorial 4 x 2 (variedades x com e sem aplicação do regulador vegetal), com cinco repetições e dez estacas por parcela experimental. Foram avaliadas a porcentagem de estacas vivas, de estacas enraizadas e de estacas brotadas, número de brotos, comprimento da maior raiz (cm), número de folhas, volume da raiz (cm3), peso seco da raiz (mg) e peso seco das folhas (mg). As estacas que não receberam a aplicação do regulador vegetal tiveram maior porcentagem de estacas vivas, enraizadas e brotadas, com exceção das variedades Roxo de Valinhos e Troiano, que não apresentaram diferença na aplicação. Mediante esses resultados, foi possível concluir que não é recomendado o uso do ácido indolbutírico para essas variedades, na época de coleta das estacas correspondente ao mês de agosto.PALAVRAS-CHAVE: Ficus carica L., propagação, regulador de crescimento FIG TREE VARIETIES CUTTINGS ROOTING USING INDOLEBUTYRIC ACID ABSTRACT: The present study aimed to evaluate the propagative performance of fig trees cuttings with application of indolebutyric acid (IBA). The evaluated varieties were “Roxo of Valinhos, White Genova, PI -189 and Troiano and the dosage of indolebutyric acid used was 2000 mg L-1. The experimental design used was entirely random, in factorial scheme 4 x 2 (varieties x with or without application of plant regulator), with five replications and ten cuttings per plot. It was evaluated the percentage of live cuttings, rooted cuttings and sprouted cuttings, number of shoots, length of the largest root (cm), number of leaves, root volume (cm3), root dry weight (mg) and leaves dry weight (mg). The cuttings that did not receive treatment with indolebutyric acid had  higher percentage of live, rooted and sprouted cuttings, except for  Roxo of Valinhos” and Troiano varieties, which showed no difference among treatments . Based on the results, it is possible to conclude that the use of indolebutyric acid for such varieties is not recommended in August, month of  cuttings harvest in this study. KEYWORDS: Ficus carica L., propagation, growth regulator.


2001 ◽  
Vol 11 (1) ◽  
pp. 150
Author(s):  
Mary C. Akemo ◽  
Mark A. Bennett ◽  
Emilie E. Regnier

Pure and biculture stands of rye `Wheeler' (Secale cereale L.) and field pea (Pisum sativum L.) were established and killed for mulch in Spring 1996, 1997, and 1998, in Columbus, Ohio. Treatments were five rye to pea proportions, each with a high, medium, and low seeding rate. Their effects on tomato (Lycopersicon esculentum Mill.) growth and yield were compared with those of a weedy check; a tilled, nonweeded check; and a tilled, hand-weeded check. Tomato tissue and soil were sampled for nutrient analysis. Number of leaves, branching, height, leaf area, dry weight, rate of flowering and fruit set, and fruit yield of tomato plants varied directly with the proportion of pea in the cover crop and decreased with reduced cover crop seeding rates. In 1997, yields of tomato were as high as 50 MT·ha-1 in the 1 rye: 3 pea cover crop; yield was poorest in the weedy check (0.02 MT·ha-1 in 1996). Most of the cover-cropped plots produced better yields than did the conventionally weeded check. No consistent relationship between levels of macronutrients in tomato leaf and soil samples and the cover crop treatments was established. Spring-sown rye + pea bicultures (with a higher ratio of pea) have a potential for use in tomato production.


HortScience ◽  
2000 ◽  
Vol 35 (5) ◽  
pp. 843-848 ◽  
Author(s):  
Mary C. Akemo ◽  
Mark A. Bennett ◽  
Emilie E. Regnier

Pure and biculture stands of rye `Wheeler' (Secale cereale L.) and field pea (Pisum sativum L.) were established and killed for mulch in Spring 1996, 1997, and 1998, in Columbus, Ohio. Treatments were five rye to pea proportions, each with a high, medium, and low seeding rate. Their effects on tomato (Lycopersicon esculentum Mill.) growth and yield were compared with those of a weedy check; a tilled, nonweeded check; and a tilled, hand-weeded check. Tomato tissue and soil were sampled for nutrient analysis. Number of leaves, branching, height, leaf area, dry weight, rate of flowering and fruit set, and fruit yield of tomato plants varied directly with the proportion of pea in the cover crop and decreased with reduced cover crop seeding rates. In 1997, yields of tomato were as high as 50 MT·ha–1 in the 1 rye: 3 pea cover crop; yield was poorest in the weedy check (0.02 MT·ha–1 in 1996). Most of the cover-cropped plots produced better yields than did the conventionally weeded check. No consistent relationship between levels of macro-nutrients in tomato leaf and soil samples and the cover crop treatments was established. Spring-sown rye + pea bicultures (with a higher ratio of pea) have a potential for use in tomato production.


2015 ◽  
Vol 6 (3) ◽  
pp. 291
Author(s):  
Sra. Rafaela Souza ◽  
Márkilla Zunete Beckmann Cavalcante ◽  
Marluce Pereira Damasceno Lima ◽  
Tamnata Ferreira Alixandre ◽  
Rejane Teixeira Nascimento

The propagation of the hibiscus is done preferably by cutting. However, the success of this technique depends on the internal and external conditions cuttings, that will influence directly into your rooting capacity. In this sense, the objective was to evaluate the effect of three types of cuttings (apical, middle and basal) and four concentrations of IBA (0, 1000, 3000 and 5000 mg L- 1) in the propagation through cuttings of Hibiscus rosa-sinensisL. cv. Snow Queen. The experiment was conducted in a greenhouse under intermittent mist at the Federal University of Piauí (UFPI), Campus Profa. CinobelinaElvas, Bom Jesus-PI for the period from May 23 to July 7, 2012. The experimental design was completely randomized in a factorial arrangement 3x4 (Type of cuttings x Concentration IBA) with four replications. At 45 days after implantation of the experiment were evaluated: percentage of rooting, survival rate, number of shoots, number of leaves, average root length, dry weight of shoot and root dry weight. There was no significant interaction between the factors studied. There is effective for cutting type. The technique of propagation by cuttings of Hibiscus rosa-sinensis L. cv. Snow Queen is efficient through the use of basal cuttings.


2019 ◽  
Vol 11 (6) ◽  
pp. 383
Author(s):  
João Batista Dias Damaceno ◽  
Ana Cecília Nina Lobato ◽  
Romildo Torres da Gama ◽  
Danielle Monteiro de Oliveira ◽  
Newton Paulo de Souza Falcão

The aim of this study was to evaluate the interaction of biochar and phosphorus in substrate for seedling production of Brazil nut. A greenhouse experiment was carried out with the following treatments: five doses of biochar (0, 20, 40, 60 and 80 t ha-1) and effect of two levels of phosphorus (0 and 100 kg ha-1 of P2O5) with 4 replicates. The plant height, stem diameter and number of leaves were monthly evaluated. At the end of experiment (180 days), the plants were removed from the pots and were evaluated the dry weight of the seedlings (total, shoot and roots), absolute growth rate, height/diameter and shoot/root ratio, number of leaves, leaf gain and quality index of seedlings. There was a significant interaction between the biochar and phosphorus interaction. The elevation of the bioburden doses did not influence any variables with phosphorus. In the absence of phosphorus, the doses of up to 40 t ha-1 of biochar promoted the highest values of the analyzed variables. Higher doses of biochar (&gt; 40 t ha-1) reduced the growth and seedlings quality, however, it was found that under phosphate fertilization, the seedlings were obtained better growth results.


2021 ◽  
Vol 39 (2) ◽  
pp. 140-145
Author(s):  
Antonio Ismael Inácio Cardoso ◽  
Maurício D Nasser ◽  
Pâmela G Nakada-Freitas ◽  
Rogério L Vieites ◽  
Bruno NM Martins ◽  
...  

ABSTRACT The use of mini-cuttings is an option for obtaining sweet potato propagules of excellent quality. The objective of this research was to evaluate the production and quality of sweet potato roots propagated by mini-cuttings in different types of trays and ages of seedlings. Six treatments, resulting from the factorial 2x3, were evaluated: two types of trays (162 and 200 cells, with 31 and 18 mL of substrate per cell, respectively) and three ages of seedlings (39, 46 and 53 days after placement of mini-cuttings in trays), in a randomized block design, with five replications. Seedlings characteristics, production and quality of roots were evaluated. Higher number and dry weight of leaves per seedling were observed in the tray with 162 cells than in trays with 200 cells. The younger seedlings (39 days) had a lower number of leaves, dry weight of leaves, stem, roots ant total (leaves + stem + roots) than seedlings of other ages. There was no difference in root production depending on the type of tray, regardless of the age of the seedlings. For the 162-cell tray, the age of the seedlings did not affect the production of roots. On the other hand, for the 200-cell tray, higher roots production was observed on seedlings 39 days age compared to seedlings with 53 days. No differences were observed among the roots of different treatments for titratable acidity, and levels of sucrose, reducing sugars ant total sugars. It is recommended to avoid old seedlings, that is, it is recommended to use seedlings with a maximum of 43 days after planting of mini-cuttings for trays with 200 cells, while for trays with 162 cells no difference in root production was observed with the different ages of the seedlings.


Author(s):  
Crescencio de la C. Castillo-Aguilar ◽  
G. May-Chablé ◽  
Víctor Hugo Quej ◽  
Ricardo Antonio Chiquini-Medina

Objective. We evaluated the effect of arbuscular mycorrhizal inoculation in Citrusvolkameriana Tan &amp; Pasq plants with the application of Glomus spp Zac- 19 (G.claroides, G. diaphanum and G. albidum) to assess growth under greenhouseconditions without fertilizer application.Methodology. The evaluated treatments were inoculation with 2,4,6,8, and 10 g ofinoculum, plus a control without inoculation in an experimental design of completerandomized blocks with three replications. Variables were plant height, stem diameter,number of leaves, foliar area, dry weight, and mycorrhizal colonization.Results. A statistically significant response (p?0.01) to inoculation wasobserved, registering higher growth of mycorrhizal plants. The inoculation wasconsidered appropriate for all the levels evaluated. The outstanding treatment was 10 gof inoculum that produced plants with 110.16 cm in height for the last sampling; 38.56leaves per plant; 1.13 cm stem diameter; 35.95 g dry weight of root; 76.88 g dry weightof the aerial part of the plant; 225.03 cm 2 of leaf area per plant and 88.87% ofmycorrhizal colonization.Conclusions. The application of 10 g per plant to the roots of Citrus volkameriana fromthe Glomus Zac-19 arbuscular mycorrhizal consortium promoted the production of morevigorous plants for grafting, without the application of chemical fertilizer.


2017 ◽  
Vol 9 (5) ◽  
pp. 200
Author(s):  
D. L. Barros ◽  
F. A. Rezende ◽  
A. T. Campos ◽  
C. M. B. F. Maia

Great part of solid waste are deposited inappropriately near cities or in rural areas, contributing to negative environmental impacts. There are numerous forms of waste processing, one of them is pyrolysis to produce biochar and subsequent use in agricultural systems. The objective of this study was to evaluate different substrates with activated biochar (AB) and biochar (B) in substrate and its effect on the growth of passion fruit seedlings. The test was conducted in a nursery, located in Sinop/MT, May to July 2013, designed in four blocks with ten treatments: commercial substrate (CS), composed by pine bark and vermiculite 4:1; nursery substrate (NS) composed by carbonized rice husk and coconut fiber 1:1; and the eigth treatments represented were B and AB additions of 25; 50; 75; and 100% in CS, (B25, B50, B75, B100, AB25, AB50, AB75 and AB100, respectively). After 60 days sowing the stem diameter, plant height, leaf number was evaluated and at the end of the experiment the fresh and dry weight of shoots and roots, and Dickson Quality Index (DQI) were assessed. AB at concentrations of 25, 50 and 75% combined with commercial substrate showed increases in parameters fresh and dry biomass weight, height, stem diameter and number of leaves. The dose of 25% AB is presented as the best dose to be adopted in commercial crops. The sawdust processed into AB is an alternative in the production of passion fruit system and the reintegration of this raw material to the productive sector.


AGRICA ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 43-52
Author(s):  
Murdaningsih Murdaningsih ◽  
Ambrosius Lai

This research aims to find the effect of planting distance on the growth and yield of corn plants which were planted with peanut as intercropping plant, and the impact on the yield of peanuts planted as an intercropping plant as well as to know planting distance for corn and peanut. The experimental design used was randomized Block Design with six treatments namely J1; 55 cm x 40 cm, J2; 60 cm x 40 cm, J3; 65 cm x 40 cm, J4; 70 cm x 40 cm, J5; 75 cm x 40 cm, and J6; 80 cm x 40 cm, while peanuts are planted in the central part of the line, and the corns rows are repeated four times so that there are 24 compartments of research. Results of the study indicated that there is a significant effect on the growth and yield of corn at a distance of 75 cm x 40 cm as well as peanuts planted as an intercropping plant with high corn sidelines range from  32,08 – 132,55 cm, a number of leaves revolve around 4.17 – 9.25 strands, leaf area range from 25,84 – 52.80 cm, corncob diameter of 10.09 cm, corncob weight tan-1 171,33 gram ha-1 5,68 ton, dry weight grain of corn  tan-1 80,13 grand ha-1 3,80 ton, as well as the weight of 100 grain of corn is 32,17 gram, whereas number of pods of peanut is 26,63 prolong, pods weight tan-1 88,13 grand ha-1 3,17 ton, dry weight of corn tan-1 31,25 grand ha-1 1,31 ton, and weight of 100 corn grains are 19,22 gram.


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