scholarly journals Miniestaquia a partir de minicepas originadas por enxertia de pitangueira adulta

2015 ◽  
Vol 6 (3) ◽  
pp. 297 ◽  
Author(s):  
Martha Lucía Peña Peña ◽  
Flávio Zanette ◽  
Luiz Antonio Biasi
Keyword(s):  
Survival Rate ◽  
Experimental Design ◽  
Vegetative Propagation ◽  
Adventitious Rooting ◽  
Experimental Unit ◽  
Indolebutyric Acid ◽  
Eugenia Uniflora ◽  
Randomized Experimental Design ◽  
Higher Temperature ◽  
Collection Time

The aim of this study was to evaluate the viability of the minicutting technique in the vegetative propagation of Surinam cherry (Eugenia uniflora L.), through productivity and survival of ministumps, and rooting of minicuttings originating from grafting and treated with different concentrations of indolebutyric acid (IBA) in the successive collections. The ministumps were obtained through grafting (cleft graft) of scions collected from the selected tree onto rootstock formed by seeds collected from the same tree. To create the minigarden, the grafted seedlings were grown in root plugs and their sprouts were pruned, maintaining one pair of leaves on each sprout. From these ministumps, successive collections of sprouts (minicuttings) were made. A completely randomized experimental design was used in a 4 x 4 factorial arrangement (four periods of collection of minicuttings x four concentrations of IBA), with four replications and 20 minicuttings as an experimental unit. The survival rate of the ministumps was 100% after four successive collections of sprouts. In the higher temperature period was possible to carry out two collections of shoots. Mean yield was 2.4 minicuttings/ministump, 598.9 minicuttings/m2 in the first collection time, and 2.7 minicuttings/ministump, 681.1 minicuttings/m2 in the second collection time. Mean yield was 384.4 minicuttings/m2 /month. It was adventitious rooting of less than 1.9%. The rooting of minicuttings from grafting of the Surinam cherry is not favored with the use of IBA.

scholarly journals Collection season and auxin treatment in the propagation by cuttings of mandarin hybrids

2016 ◽  
Vol 46 (2) ◽  
pp. 215-221 ◽  
Author(s):  
Andrés Iván Prato Sarmiento ◽  
Paulo Vitor Dutra de Souza ◽  
Sergio Francisco Schwarz
Keyword(s):  
Experimental Design ◽  
Vegetative Growth ◽  
Late Spring ◽  
Indolebutyric Acid ◽  
Rooted Cuttings ◽  
Exogenous Application ◽  
Auxin Treatment ◽  
Randomized Experimental Design

ABSTRACT Propagation by cuttings is an alternative for obtaining citrus rootstocks. The exogenous application of indolebutyric acid (IBA), cutting collection season and genotypes used may affect the rooting and vegetative growth of citrus rootstocks cuttings. Two experiments were conducted to study the influence of these factors. In the first one, semi-hardwood cuttings from the 'Sunki' mandarin hybrids H49 and H77 were collected in the fall and late spring of 2013 and treated with IBA (0 mg L-1, 1,500 mg L-1 and 3,000 mg L-1). For each collection season, a 2 x 3 (two genotypes x three IBA concentrations) factorial scheme was adopted, in a randomized blocks design. In the second experiment, the development of cuttings that rooted in the late spring was evaluated until grafting. In this case, a completely randomized experimental design was adopted, with the hybrids H49 and H77. The IBA treatments positively influenced rooting and number of roots only in the fall collection, peaking at 23.3 % of rooted cuttings. In the late spring collection, rooting was close to 100 %, with the IBA treatment being unnecessary. Around 50 % of cuttings from the 'Sunki' mandarin hybrids were ready for grafting at 14 months after cutting.

scholarly journals Rooting of semi-hardwood stem cuttings from current year shoots of Drymis brasiliensis

2016 ◽  
Vol 46 (12) ◽  
pp. 2129-2134 ◽  
Author(s):  
Luciele Milani Zem ◽  
Katia Christina Zuffellato-Ribas ◽  
Maria Izabel Radomski ◽  
Henrique Soares Koehler
Keyword(s):  
Experimental Design ◽  
Alcoholic Solution ◽  
Experimental Unit ◽  
Stem Cuttings ◽  
Rooted Cuttings ◽  
Apical Portion ◽  
Randomized Experimental Design ◽  
Cutting Length ◽  
Drimys Brasiliensis ◽  
Mortality Percentage

ABSTRACT: Drimys brasiliensis Miers is an Angiosperm native to the Atlantic Rainforest, commonly known as cataia. Because of dormancy of its seeds, due to embryonic immaturity, production of cataia seedlings presents challenges regarding propagation of the species. Thus, cuttings emerged as a possible technique to be applied, diminishing plants production time and ensuring uniformity of rooting. Stem cuttings from current year shoots were collected in autumn/2012, prepared with 10-12cm in length, a bevel cut on base and straight on top, keeping two leaves, one leaf or no leaves in the apical portion. After disinfestation, bases of cuttings were submitted to the following treatments with indole-3-butyric acid (IBA) in 50% hydro-alcoholic solution: 100% water, 0, 500, 1500, 3000, 4500 and 6000mg L-1 IBA. A completely randomized experimental design was used, with 3 types of cutting x 7 IBA concentrations, with four replicates of 10 cuttings per experimental unit. After 120 days, the variables percentage of rooted cuttings, number of roots per cutting, length of the three longest roots per cutting, percentage of cuttings with callus, alive and dead, with new shoots and the cuttings maintaining the original leaves were assessed. The application of IBA had no influence on any of the assessed variables. Cuttings with two leaves presented the best rooting percentage (51.1%) and the lowest mortality (5.4%), when compared to cuttings with one leaf (35.0%) or without leaves (0.4%). Cuttings without leaves are to be avoided, since they present the highest mortality percentage (93.6%).

scholarly journals Minicutting technique and IBA application in vegetational propagation of Schinus terebinthifolia Raddi

2021 ◽  
Vol 10 (14) ◽  
pp. e553101422610
Author(s):  
Felipe Bueno Dutra ◽  
Bruno dos Santos Francisco ◽  
Lausanne Soraya de Almeida ◽  
Ivonir Piotrowski Santos ◽  
Emerson Viveiros ◽  
...  
Keyword(s):  
Experimental Design ◽  
Vegetative Propagation ◽  
Tree Species ◽  
Predation Rate ◽  
Factorial Experimental Design ◽  
Indolebutyric Acid ◽  
Native Tree ◽  
High Predation Rate ◽  
High Predation ◽  
Native Tree Species

Vegetative propagation is an alternative for the production of seedlings of native tree species such as Schinus terebinthifolia that presents a high predation rate on its seeds. In order to develop vegetative propagation technology, different concentrations of indolebutyric acid (IBA) were tested in the rooting of apical and intermediate minicuttings of Schinus terebinthifolia. The 2x4 factorial experimental design involved two types of minicuttings (apical and intermediate) and four dosages of the hormone IBA (0, 1000, 2000, and 4000 mg. L-1). The percentages of survival and rooting were evaluated. The intermediate minicuttings (37% and 35%) showed significantly greater survival than the apical cuttings (22% and 9%) respectively at 30 and 60 days, regardless of the IBA concentration. Among the rooting averages at 60 days obtained in the different concentrations of IBA, the treatment of 4000 mg. L-1 generated the highest results (9% for apical and 35% for intermediate). The vegetative propagation by minicuttings of Schinus terebinthifolia demonstrated the viability of intermediate minicuttings with high rooting associated with the highest concentration of IBA.

scholarly journals Performance and carcass yield of female broilers fed with diets containing probiotics and symbiotics as an alternative to growth enhancers

2018 ◽  
Vol 40 (1) ◽  
pp. 39916
Author(s):  
Gabriela Viana da Silva ◽  
Noédson De Jesus Beltrao Machado ◽  
Leonardo Willian de Freitas ◽  
Marcos Fábio de Lima ◽  
Rosa Helena Luchese
Keyword(s):  
Weight Gain ◽  
Experimental Design ◽  
Stocking Density ◽  
Experimental Unit ◽  
Performance Parameters ◽  
Carcass Yield ◽  
Probiotic Treatment ◽  
Significant Difference ◽  
Randomized Experimental Design ◽  
Antibiotic Group

 An experiment was carried out with female broilers, aiming to evaluate the effect of using probiotics and symbiotics on growth performance and yield of carcasses and of the main commercial cuts and edible viscera. A total of 720 one-day-old Cobb chicks, distributed in a completely randomized experimental design with four treatments and six replicates of 30 birds each at a stocking density of 10 birds per square meter (m2). At 42 days old two broilers of each experimental unit were sacrificed to evaluate the carcass yield and its parts. The carcass yield was not affected by the inclusion of probiotics and symbiotics in the diet being equivalent to the antibiotic group. No significant difference was observed among the treatments, even in the controls that did not receive any additive factor. All the performance parameters were similar for the four treatments, with the exception of weight gain, that was significantly lower in probiotic treatment. It was concluded that these additives are important alternative to replace antibiotics as growth enhancers, which have already been banned in many countries.  

scholarly journals Grafting technique and rootstock species for the propagation of Plinia cauliflora

2017 ◽  
Vol 47 (2) ◽  
Author(s):  
Darcieli Aparecida Cassol ◽  
Kelli Pirola ◽  
Marcelo Dotto ◽  
Idemir Citadin ◽  
Sérgio Miguel Mazaro ◽  
...  
Keyword(s):  
Experimental Design ◽  
Graft Survival ◽  
Vegetative Propagation ◽  
Fruit Tree ◽  
Diameter Growth ◽  
Eugenia Uniflora ◽  
Grafting Technique

ABSTRACT: One of the biggest challenges for expansion of jabuticaba fruit tree cultivation is the high cost of seedlings due to to difficulties with vegetative propagation. Here, we aimed to evaluate graft survival in combinations of Plinia cauliflora and rootstocks of other species from the Myrtaceae family. The study was carried out at the Universidade Tecnológica Federal do Paraná - Campus Dois Vizinhos, Paraná State, Brazil. Eugenia uniflora L., E. involucrata DC, and P. cauliflora were used as rootstocks and were obtained as seeds. The 'whip-and- tongue' and cleft grafting techniques were tested for vegetative propagation. Grafted plants were cultivated in a greenhouse. The experimental design was a randomized complete block, in factorial 3×2 (rootstock species× graft type), with four replicates of 10 grafts by plot. Compatibility between rootstock species and scion was evaluated by diameter growth below and above the grafting point and by vegetative budburst and survival percentages. The use of P. cauliflora grafts with the same species was required for propagation. E. involucrata and E. uniflora rootstocks were not capable of propagation with P. cauliflora . Therefore, it is necessary to test other species from the Myrtaceae family.

scholarly journals MINICUTTING OF CHARDONNAY GRAPEVINE AND SO4 GRAPEVINE ROOTSTOCK

2019 ◽  
Vol 21 (3) ◽  
pp. 323-332
Author(s):  
Daniele Camargo Nascimento ◽  
Maximiliano Dini ◽  
Roseane Maidana Moreira ◽  
Norton Victor Sampaio ◽  
Márcia Wulff Schuch
Keyword(s):  
Experimental Design ◽  
Vegetative Propagation ◽  
Callus Formation ◽  
Average Length ◽  
Root Number ◽  
Indolebutyric Acid ◽  
Shoot Number ◽  
Four Levels

The use of grapevine minicutting is an alternative for the production of quality plants. This technique has been gaining ground as one of the most used forms of vegetative propagation. The objective of this study was to evaluate the rooting of herbaceous minicuttings of Chardonnay grapevine and SO4 grapevine rootstock by using different concentrations of indolebutyric acid (IBA) to form a clonal mini-garden. The experimental design was randomized blocks with four levels of IBA concentrations (0, 500, 1000 and 1500 mg L-1). The minicuttings remained in trays containing vermiculite and kept in a micro sprinkler chamber. After 60 days, the percentage of survival, rooting and callus formation, root number and average length, shoot number and average length were evaluated. For Chardonnay, the means of survival and rooting varied between 93 and 100% in all treatments. In relation to SO4, the IBA concentration of 1500 mg L-1 negatively affected the minicuttings survival and rooting. It is possible to propagate Chardonnay grapevine and SO4 grapevine rootstock through herbaceous minicutting, with no need of apply IBA for the rooting.

scholarly journals Digestibility and bioavailability of organic calcium sources for European quail

2020 ◽  
Vol 41 (6supl2) ◽  
pp. 3275-3284
Author(s):  
Ana Patricia Alves Leão ◽  
◽  
Sandra Roseli Valerio Lana ◽  
Geraldo Roberto Quintão Lana ◽  
Romilton Ferreira Barros Junior ◽  
...  
Keyword(s):  
Experimental Design ◽  
Oyster Shell ◽  
Basal Diet ◽  
Relative Bioavailability ◽  
Experimental Unit ◽  
Slope Ratio ◽  
Standard Curve ◽  
True Digestibility ◽  
Randomized Experimental Design ◽  
Calcium Sources

The objective of this study was to determine the apparent and true digestibility coefficients and relative bioavailability of charru mussel, maçunim (Anomalocardia brasiliana) and oyster shells as organic calcium sources for meat quail. In the digestibility trial, 240 quail were distributed in a completely randomized experimental design with five diets (calcitic limestone, calcium carbonate and three marine calcium sources), five replicates and eight quails per experimental unit. The relative bioavailability of calcium was determined by the standard-curve and slope ratio methods in a growth trial in which 288 European quail were distributed in completely randomized experimental design. Treatments consisted of basal diet with a low calcium concentration (0.166%) that was supplemented with two levels of calcium (0.342% and 0.684%) derived from different calcium sources. The apparent and true digestibility coefficients of calcium from charru mussel-, maçunim- and oyster-shell meals for meat quail were 91.85 and 92.04%; 91.71 and 91.90%; and 89.39 and 89.63%, respectively. The relative bioavailability of calcium from charru mussel-, maçunim- and oyster-shell meals obtained using standard-curve and slope ratio methods were 133.22 and 119.18%; 140.05 and 113.69%; and 141.73 and 106.22%, respectively, allowing the use of these organic calcium sources in diet formulations for meat quail.

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.

Pengaruh ovaprim, aromatase inhibitor, dan hipofisa terhadap kualitas telur ikan Lele Dumbo (Clarias gariepinus)

2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Erwin A. Aziz ◽  
Ockstan Kalesaran
Keyword(s):  
Survival Rate ◽  
Experimental Design ◽  
Aromatase Inhibitor ◽  
Fish Larvae ◽  
Clarias Gariepinus ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
The Difference ◽  
Hatching Eggs

This study aimed to determine the effect of ovaprim hormone, aromatase inhibitor and pituitary on the quality of the catfish eggs (Clarias gariepinus). Experimental Design used was Completely Randomized Design (CRD) with four treatments, each with three replications. Treatment A: ovaprim; treatment B: Aromatase inhibitors, treatment C: hypophysis and treatment D: Control. The results showed that the difference in treatment gave highly significant effect on fertilization and hatching eggs but no significant effect on the survival rate of larvae. Aromatase inhibitor hormone was the best because it provided highly significant effect on fertilization (92.66%), hatchability of eggs (95%), and surviva rate (81.33%) of fish larvae.   Keywords : Clarias gariepinus. Ovaprim, Aromatase Inhibitor, Hypophysis, egg, larvae

Vegetative propagation, chemical composition and antioxidant activity of yerba mate genotypes

2021 ◽  
pp. 1-10
Author(s):  
Leandro Marcolino Vieira ◽  
Renata de Almeida Maggioni ◽  
Jéssica de Cássia Tomasi ◽  
Erik Nunes Gomes ◽  
Ivar Wendling ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Vegetative Propagation ◽  
Adventitious Rooting ◽  
Ilex Paraguariensis ◽  
Total Phenolic ◽  
Yerba Mate ◽  
Total Phenolic Compounds ◽  
Leaf Retention ◽  
Correlated Components

Abstract Ilex paraguariensis, commonly known as yerba mate, is a tree species native to South America. Its commercial value is due to the manufacturing of teas, with potential also in the pharmacological and cosmetic industries. Vegetative propagation of yerba mate is considered an innovation to the traditional production systems based on sexual propagation. The present study aimed to evaluate the rhizogenic potential and chemical attributes of mini-cuttings from 15 yerba mate genotypes, as well as to verify the correlation between phytochemical and rooting-related variables. Mini-cuttings were collected from a pre-existing mini-clonal hedge and the experimental design was completely randomized, with 15 treatments (genotypes), four replications and 10 mini-cuttings per plot. After 120 days, mini-cuttings were assessed regarding rooting, mortality, callogenesis and leaf retention percentages, percentage of mini-cuttings with both calluses and roots, number of roots and average root length. At the time of collection, subsamples from each plot were used for phytochemical analyses including total phenolic compounds, protein, caffeine and theobromine contents and antioxidant activity. Rooting percentages ranged from 5 to 72.5%, with significant variation among genotypes. Adventitious rooting and phytochemical profile of yerba mate mini-cuttings are genotype-dependent. Leaf retention is a relevant factor in the rooting of yerba mate mini-cuttings and the levels of total phenolic compounds, antioxidants and theobromine present in mini-cuttings are negatively correlated components to Ilex paraguariensis adventitious rooting.

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