scholarly journals Cytokinin induces the development of gabirobeira root cuttings

2021 ◽  
Vol 51 (6) ◽  
Author(s):  
Lasara Kamila Ferreira de Souza ◽  
Alejandro Hurtado-Salazar ◽  
Francielly Rodrigues Gomes ◽  
Laísse Danielle Pereira ◽  
Diego Ismael Rocha ◽  
...  
Keyword(s):  
Experimental Design ◽  
Plant Material ◽  
Cropping Systems ◽  
Brazilian Cerrado ◽  
Main Root ◽  
Randomized Experimental Design ◽  
Number Of Leaves ◽  
Number Of Shoots

ABSTRACT: The gabirobeira is a species native to the Brazilian Cerrado with potential for use in cropping systems. This study evaluated the effect of the cytokinin 6-benzylaminopurine (BAP) on root cuttings of gabirobeira (Campomanesia adamantium). The plant material was obtained from gabirobeira progenies of one and two-years-old. The cuttings were segmented in 5 cm length and 1.90 to 3.22 mm diameter, immersed in the following BAP concentrations: 0.0; 1.0; 2.0 and 4.0 mg L-1 for 15 seconds and planted in trays containing the substrate Bioplant®. A complete randomized experimental design was adopted in a factorial scheme 2x4, (cuttings age x BAP concentrations) with fifteen replicates per treatment. After 140 days the number of cuttings with shoots, number of shoots, number of leaves, and diameter of the main root were evaluated. The better development of the cuttings was observed on progenies of two-years-old. The lowest cytokinin concentrations promoted the better emission and number of shoots of the progenies from both ages.

scholarly journals Polpa de banana e sacarose no desenvolvimento in vitro de orquídeas

2021 ◽  
Vol 4 (2) ◽  
pp. 70-77
Author(s):  
Eliane Lima de = Aquino ◽  
◽  
Tarcísio Rangel do Couto ◽  
João Sebastião de Paula Araújo ◽  
◽  
...  
Keyword(s):  
Experimental Design ◽  
Seedling Growth ◽  
Culture Medium ◽  
In Vitro Cultivation ◽  
Fresh Weight ◽  
Randomized Experimental Design ◽  
Number Of Leaves ◽  
Weight Number

The objetive of this study was to evaluate the effects of adding two types of banana pulp, combined with varying concentrations of sacarose on the growth of Cattleya sp. plantlets. Hybrid LCTV-01 seedlings (Cattleya labiata rubra x Cattleya labiata semi alba) made to germinate in vitro were inoculated in an MS culture medium with half the concentration of nutrients and supplemented with 60 g.L-1 'maçã' or 'terra' banana pulp in addition to different concentrations of sacarose (10, 20 and 30 g.L-1. The entirely randomized experimental design was chosen, implemented in seven treatments, ten repetitions and eight seedlings per repetition. After 160 days of in vitro cultivation, variables of fresh weight, number of leaves, number of roots and length of the longest root were evaluated. It was found that the addition of banana pulp of any of the analyzed cultivars promoted better seedling growth. Additionally, the 20 g.L-1 sacarose concentration yielded better results for the analyzed variables.

scholarly journals Desenvolvimento de alpínia sob diferentes telas de sombreamento e espaçamentos de cultivo

2016 ◽  
Vol 22 (2) ◽  
pp. 202
Author(s):  
Roseane Rodrigues De Souza ◽  
Ângela Maria Pereira Nascimento ◽  
Patrícia Duarte de Oliveira Paiva ◽  
Elka Fabiana Aparecida Almeida ◽  
Paulo Roberto Correa Landgraft
Keyword(s):  
Experimental Design ◽  
Morphological Changes ◽  
Index Number ◽  
Spectral Quality ◽  
Initial Development ◽  
Shoot Height ◽  
Number Of Leaves ◽  
Color Shading ◽  
Number Of Shoots

Intensity and spectral quality of the radiation can be manipulated with the use of neutral or color shading screens in growing plants, and it can promote physiological and morphological changes. Therefore, the purpose was evaluating the effects of different shading levels, screens spectral quality, and spacing in the development of cv. Jungle King and cv. Jungle Queen gingers. Rhizomes were planted in 5 cultivation environments (full sun, black screen 50%, black screen 30%, blue screen 50% and red screen 50% shading) and 2 spacing (0.8 x 1.0 m and 0.8 x 1.5 m). The experimental design was completely randomized in a factorial 5x2x2x7, with 5 environments of cultivation, 2 cultivars, 2 spacing between plants and 7 times of evaluation (55, 120, 200, 255, 285, 335 e 370 days after planting (DAP)). The evaluations were shooting index, number of shoots per plant, shoot height and number of leaves per shoot. Shooting of cv. Jungle Queen was earlier compared to cv. Jungle King. Spacing did not influence in the initial development of plants. Screens with 50% shading, in blue or red colors, enhanced alpinia development.

scholarly journals Pengaruh Konsentrasi Jus Lidah Buaya (Aloe cbinensis Baker) Terhadap Pertumbuhan Planlet Anggrek Hasil Silangan Dendrobium Morning Sun X Dendrobium Samarai

OrchidAgro ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Reo Sempana ◽  
Lia Amalia ◽  
Wahyono Widodo ◽  
Elly Roosma Ria ◽  
Noertjahyani Noertjahyani
Keyword(s):  
Tissue Culture ◽  
Experimental Design ◽  
Root Length ◽  
Aloe Vera ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
C 50 ◽  
Better Than ◽  
Number Of Shoots

This experiment aims was to study the effect of the concentration of aloe vera juice and to get the concentration of aloe vera juice which shows better growth of the number of leaves and the number of roots on the Dendrobium orchid plantlet in Hybrid-vitro results. This experiment was carried out at the Tissue Culture Laboratory, Faculty of Agriculture, Winaya Mukti University, which began in May to August 2019. The experimental design was used a Completely Randomized Design with 5 treatments in 5 replications and the treatments namely: A (0 g L-1 solution), B (25 g L-1 solution), C (50 g L-1 solution), D (75 g   L-1 solution), E (100 g L-1 solution). The results showed that consentration of B (25 g L-1 solution), C (50 g L-1 solution), D (75 g   L-1 solution) gave plantlet height, number of shoots, number of roots, and root length better than another treatments.

scholarly journals Growth and essential oil content of accessions of Lippia rotundifolia in Minas Gerais, Brazil

2021 ◽  
Vol 56 ◽  
Author(s):  
Messulan Rodrigues Meira ◽  
Ernane Ronie Martins ◽  
Julio Cesar Rodrigues Lopes Silva ◽  
Brayonn Mascarenhas Azevedo
Keyword(s):  
Experimental Design ◽  
Essential Oil ◽  
Aerial Part ◽  
Oil Content ◽  
Minas Gerais ◽  
Stem Diameter ◽  
Average Width ◽  
Randomized Experimental Design ◽  
Number Of Leaves ◽  
Essential Oil Yield

Abstract The objective of this work was to evaluate the growth and essential oil content after transplantation and cutting of Lippia rotundifolia accessions from a natural population from the state of Minas Gerais, Brazil. Eight accessions were evaluated (PVP, GIG, RPE, ODA, JFE, PRP, SGS, and RTI) in six periods (60, 81, 102, 123, 144, and 165 days after transplanting and cutting), in a completely randomized experimental design. The following parameters were assessed: average width and length of the basal, median, and apical pair of leaves; plant height; stem diameter; and number of leaves. At 165 days, the yield of essential oil and the fresh and dry phytomass of the aerial part were also evaluated. Sixty days after the last evaluation, regrowth was measured from height, stem diameter, and number of leaves. The JFE accession stands out for emission of leaves, with a better development at 165 days after transplanting. RPE and PRP respond well to regrowth at 102 and 123 days after cutting, respectively. The SGS accession shows a high essential oil yield of 2.2%, and PVP, a low yield of 0.3%.

scholarly journals In vitro growth of Oncidium sphacelatum (Orchidaceae) in different concentrations of sucrose and nutrients

2019 ◽  
pp. 20-35
Author(s):  
Ana Luisa Navarrete-Valencia ◽  
Leobarda Guadalupe Ramírez-Guerrero ◽  
Ana Luisa Sánchez-Monteón ◽  
Víctor Manuel Jiménez-Meza
Keyword(s):  
Experimental Design ◽  
Nutrient Medium ◽  
In Vitro Propagation ◽  
Nutrient Concentration ◽  
Culture Medium ◽  
Nutrient Concentrations ◽  
In Vitro Growth ◽  
Randomized Experimental Design ◽  
Number Of Leaves

The objective of the present work was to offer an in vitro propagation alternative for the Oncidium sphacelatum orchid through the evaluation of the response to the crop in different concentrations of sucrose and the nutrient medium of Murashige and Skoog. Initially the seeds were sown in this culture medium at 100% of their concentration with the addition of 3.0% sucrose, once formed the protocorms the response to the application of different sucrose concentrations was evaluated (3.0, 2.25, 1.5, 0.75 and 0%) and of the nutrients of the culture medium (100, 75, 50, 25 and 0%) under a completely randomized experimental design of eight treatments with four repetitions. The analysis of variance showed statistical differences between treatments for the formation of buds in the protocorms, number of leaves per bud, plant height, root length and formation of pseudobulbs in the shoots. The highest outbreak formation in the protoorms was observed in treatments with 3.0% sucrose and nutrient concentrations at 50 or 25%. For the growth of the leaves and the root the concentration of 3.0% of sucrose was required combined with the concentrations of nutrients at 25, 50 and 100%. The formation of pseudobulbs in the outbreaks only occurred in the treatment with 3.0% sucrose combined with the 25% nutrient concentration.

scholarly journals Desponte de Cladódios de Pitaia Vermelha de Polpa Branca

UNICIÊNCIAS ◽  
2018 ◽  
Vol 22 (1) ◽  
pp. 8
Author(s):  
Ranieri Reis Laredo ◽  
José Darlan Ramos ◽  
Verônica Andrade Dos Santos ◽  
Ellison Rosario de Oliveira ◽  
Karina Souza Moraes ◽  
...  
Keyword(s):  
Experimental Design ◽  
Fruit Production ◽  
Fresh Mass ◽  
Strong Tendency ◽  
Reproductive Characteristics ◽  
Organoleptic Characteristics ◽  
Randomized Experimental Design ◽  
Hylocereus Undatus ◽  
Nutraceutical Properties ◽  
Number Of Shoots

Atualmente, a diversificação de frutíferas é uma forte tendência para ampliação de oportunidades para o fruticultor. O cultivo da pitaia se tornou importante, tanto para a economia quanto para a saúde, devido ao exotismo de sua aparência, por suas características organolépticas e suas propriedades nutracêuticas. No entanto, informações sobre o cultivo desta frutífera são escassas, necessitando de pesquisas para facilitar seu manejo. Neste sentido, o presente trabalho teve como objetivo avaliar a influência do manejo do desponte nas características vegetativas e reprodutivas em diferentes tamanhos de cladódios de pitaia vermelha de polpa branca. Para execução do experimento foi utilizado o delineamento experimental inteiramente casualizado, em esquema fatorial 5 x 3, correspondente a cinco comprimento de cladódios (menores que20 cm, entre 20-40 cm, 41-60 cm, 61-80 cme maiores que80 cm) e o segundo se refere a três tipos de desponte (sem desponte do cladódio, com desponte em setembro e desponte em outubro). Utilizaram-se 6 repetições e 1 cladódio por parcela. Foram analisadas as seguintes características: comprimento das brotações, números de brotações, número total de flores, quantidade de flores abortadas e frutos, porcentagem de pegamento das flores e massa fresca dos frutos. O desponte de cladódios não influenciou na maioria das características avaliadas. No entanto, para a melhor floração e produção de frutos, recomenda-se priorizar o desponte nos cladódios superiores a60 cmde comprimento.Palavras-chave: Cactácea. Frutificação. Hylocereus undatus. Poda.AbstractCurrently the diversification of fruit is a strong tendency to increase opportunities for the fruit grower. Pitaya cultivation has become important for both economy and health, due to the exotic nature of its appearance, its organoleptic characteristics and its nutraceutical properties. However, information on the cultivation of this fruit is scarce, requiring research to facilitate its management. Therefore, the present work had as objective to evaluate the influence of the topping management in the vegetative and reproductive characteristics in different sizes of cladodes of  white fleshed red pitaya. In order to carry out the experiment, the completely randomized experimental design in factorial scheme 5 x 3 was utilized, corresponding to five cladode lengths (shorter than 20 cm, between 20-40 cm, 41-60 cm, 61-80 cm and longer than 80 cm) and the second is regarding  the three kinds of topping (no topping of the cladode, with topping in September and topping in October). Six replications and one cladode per plot were used . The following characteristics were investigated: length of the shoots, number of shoots, total number of flowers, amount of aborted flowers and fruits, percentage of flower set and fresh mass of fruits. The topping of cladodes did not influence the evaluated characteristics. For the best flowering and fruit production, it is advisable to prioritize  the cladodes over 60 cm long.Keywords: Cactaceae. Fructification. Hylocereus undatus. Pruning.

scholarly journals Growth and development of lettuce plants at high NH4+:NO3- ratios in the nutrient solution

2006 ◽  
Vol 24 (3) ◽  
pp. 352-355 ◽  
Author(s):  
Jerônimo L Andriolo ◽  
Rodrigo dos S Godoi ◽  
Clarissa M Cogo ◽  
Orcial C Bortolotto ◽  
Gean L da Luz ◽  
...  
Keyword(s):  
Experimental Design ◽  
Nutrient Solution ◽  
Growth And Development ◽  
Crop Production ◽  
Dry Mass ◽  
Fresh Weight ◽  
Total N ◽  
Randomized Experimental Design ◽  
Number Of Leaves ◽  
Polynomial Models

Lettuce plants, cv. Vera, were grown at five NH4+:NO3- ratios in the nutrient solution in a 0.15 m deep sand growing bed. A standard nutrient solution was used, with the composition of, in mmol L-1, 11.0 NO3-; 1.5 H2PO4-; 6.5 SO4--; 7.5 Ca++; 10.0 K+ and 1.5 Mg++, and, in mg L-1, 0.42 Mn; 0.26 Zn; 0.05 Cu; 0.50 B; 0.04 Mo, and 4.82 chelate Fe. Ammonium nitrate was used to supply NH4+ concentrations of 2.5; 5; 7.5 and 10 mmol L-1, reaching NH4+:NO3- ratios of 0:11 (T1); 2.5:13.5 (T2); 5:16 (T3); 7.5:18.5 (T4) and 10:21 mmol L-1 (T5) as treatments. A completely randomized experimental design was used, with four replications and 20 plants per plot. Four plants of each plot were harvested at 25 days after planting, to determine shoot and root dry mass, shoot fresh weight and number of leaves per plant. Number of leaves, shoot fresh and shoot and root dry mass decreased 25.5%; 52.5% and 68.5% from T1 to T5, respectively, following polynomial models. Root dry mass was 1.7 g/plant for T1 and T2, and 0.82 g/plant for T3, T4 and T5, decreasing in a proportion of 51.8%. For lettuce crop production in hydroponical facilities, the NH4+ threshold limit of about 9-12% of the total N should be retained.

PENGARUH KONSENTRASI RAGI Saccharomyces cerevisiae DAN LAMA FERMENTASI TERHADAP KUALITAS CUKA TOMI-TOMI (Flacourtia inermis)

2015 ◽  
Vol 4 (2) ◽  
pp. 50-55
Author(s):  
Sandra J Nendissa ◽  
Rachel Breemer ◽  
Nikholaus Melamas
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Experimental Design ◽  
Total Dissolved Solids ◽  
Total Sugar ◽  
Dissolved Solids ◽  
Randomized Experimental Design ◽  
Two Factors ◽  
Four Levels

This objectives of this research were both to study and determine the best level of concentration of yeast Saccharomyces cereviseae and period of fermentation on the quality of tomi-tomi vinegar (Flacourtia inermis). A completely randomized experimental design with two factors of treatment was applied in this research. The first factor was concentration of yeast S. cereviseae having four levels of tretament, i.e.: without the addition of yeast 0.5, 1 and 1.5 g yeast. The second factor was period fermentation with 1, 2, 3, 4, and 5 weeks. The result indicated that the concentration of yeast S. cereviseae 1.5 g and period fermentation 5 week produced a good tomi-tomi vinegar with total acids 51.22%, total dissolved solids 8.35, total sugar 8.07% and pH 5.40.

scholarly journals Cultivation of gerbera irrigated with treated domestic effluents

2010 ◽  
Vol 14 (6) ◽  
pp. 582-588 ◽  
Author(s):  
Lisânea M. O. Damasceno ◽  
Aderson S. de Andrade Júnior ◽  
Hans R. Gheyi
Keyword(s):  
High Temperature ◽  
Experimental Design ◽  
Relative Humidity ◽  
Plant Development ◽  
Leaf Growth ◽  
Treated Wastewater ◽  
Nutritional Requirements ◽  
Randomized Experimental Design ◽  
Growth Production ◽  
Domestic Effluents

This paper evaluates the nutritional impact on growth, production and quality variables of gerbera crop when fertigated with treated domestic effluents. An experiment was carried out in greenhouse at the Embrapa Meio-Norte in Teresina, in the State of Piauí, Brazil, from July to October 2007. A completely randomized experimental design with five treatments and five replications was adopted. The treatments investigated were T1 - 100% of water and nutritional requirements of crop were met with chemical fertigation (N e K2 O); T2 - 25% volume of water through fertigation and 75% treated wastewater effluents (TWE); T3: 50% volume of water through fertigation and 50% TWE; T4: 75% volume of water with fertigation and 25% TWE; and T5 - 100% volume of water supplied through TWE. Leaf growth and plant development were favored by the application of 50% fertigation and 50% TWE (T3). As for commercial requirements, the best results for number of flowers were obtained with T4. However, concerning quality, T2 produced flowers in July and August with longer stems, but in the months of September and October, no treatment achieved this standard due to high temperature and low relative humidity of the air in the region.

Effects of Tillage and Mulch on Weed Biomass and Sweet Corn Yield

1991 ◽  
Vol 5 (3) ◽  
pp. 545-552 ◽  
Author(s):  
Charles L. Mohler
Keyword(s):  
Experimental Design ◽  
Detrimental Effect ◽  
Sweet Corn ◽  
Cropping Systems ◽  
Effective Control ◽  
Corn Yield ◽  
Living Mulch ◽  
Weed Biomass ◽  
Common Lambsquarters ◽  
No Till

Sweet corn was grown with a living mulch of white clover, a dead mulch of rye, and without mulch, in both till and no-till conditions. Unplanted controls were also included in the experimental design. Corn yields were highest in clover treatments early in the experiment but lowest in later years. The declining yields in the clover living mulch were related to the strip application of glyphosate which allowed establishment of perennial and biennial weeds, notably dandelion and horseweed. These overwintering weeds apparently prevented effective control of summer annuals, especially redroot pigweed, common lambsquarters and large crabgrass, by atrazine and metolachlor. Presence of a rye mulch decreased weed biomass and had no detrimental effect on corn yield. In general, corn yield was not affected by tillage, although the number of marketable ears was reduced in the no-till treatments during the drought year of 1988. The much greater weed biomass in the unplanted control treatments showed the importance of crop competition for weed control in sweet corn cropping systems.

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