scholarly journals Multiplication of blueberry mini-cuttings in different growth media

2018 ◽  
Vol 4 (1) ◽  
pp. 28
Author(s):  
Renata Koyama Koyama ◽  
Adriane Assis ◽  
Wellington Borges ◽  
Lilian Yamamoto ◽  
Ronan Colombo ◽  
...  
Keyword(s):  
Experimental Design ◽  
Dry Mass ◽  
Rice Hull ◽  
Growth Media ◽  
Coconut Fiber ◽  
Rice Hull Ash ◽  
Rooted Cuttings ◽  
Leaf Retention ◽  
Mist Chamber

The objective of this study was to evaluate the influence of length of herbaceous cuttings and substrates on the multiplication of ‘Woodard’ and ‘Briteblue’ blueberry cuttings. The experimental design was entirely randomized. Four replicates of 10 cuttings per plot in a 3x2 factorial arrangement, three cutting lengths (5, 8, and 12 cm) and two types of substrate (rice hull ash and coconut fiber) were evaluated. The cuttings were collected in two seasons: summer and fall. After the cuttings were prepared, they were placed in perforated plastic boxes containing each substrate for rooting, which were placed in a mist chamber under intermittent mist. After 158 days, the following variables were evaluated: proportion of rooted cuttings, cutting survival, leaf retention, number of roots per cutting, root mean length, root dry mass, unrooted cuttings with callus, and the proportion of sprouting cuttings. The use of 5-cm herbaceous cuttings collected in the summer and grown in rice hull optimizes the multiplication of ‘Woodard’ and ‘Briteblue’ blueberry cuttings.

scholarly journals Association of Indolebutyric Acid with Azospirillum brasilense in the Rooting of Herbaceous Blueberry Cuttings

Horticulturae ◽  
2019 ◽  
Vol 5 (4) ◽  
pp. 68 ◽  
Author(s):  
Koyama ◽  
Aparecido Ribeiro Júnior ◽  
Mariani Zeffa ◽  
Tadeu Faria ◽  
Mitsuharu Saito ◽  
...  
Keyword(s):  
Root Length ◽  
Azospirillum Brasilense ◽  
Dry Mass ◽  
Plant Growth Promoting Bacteria ◽  
Indolebutyric Acid ◽  
Rooted Cuttings ◽  
Plant Growth Promoting ◽  
Rooting Of Cuttings ◽  
Mist Chamber ◽  
Root Growth And Development

Association between auxins and plant growth-promoting bacteria can stimulate root growth and development of fruit crop nursery plants, and can be a promising biological alternative to increase the rooting of cuttings. The objective of this study was to assess the viability of producing ‘Powderblue’ blueberry nursery plants from cuttings using different doses of indolebutyric acid (IBA) in association with Azospirillum brasilense. The following treatments were tested: 0 (control); 500 mg L−1 of IBA; 1000 mg L−1 of IBA; A. brasilense; 500 mg L−1 of IBA + A. brasilense; and 1000 mg L−1 of IBA + A. brasilense. The experimental design was completely randomized, with six treatments and four replicates, and each plot (box) consisted of 10 cuttings. The boxes were arranged in a mist chamber with an intermittent regimen controlled by a timer and solenoid valve. After 90 days, the following variables were assessed: rooted cuttings; survival of cuttings; foliar retention; sprouting; cuttings with callus; root dry mass per cutting; number of roots per cutting; and root length. It was observed that the application of IBA with the A. brasilense rhizobacteria increased the number of roots of ‘Powderblue’ blueberry cuttings, while the treatments with IBA alone and IBA 1000 mg L−1 + A. brasilense increased the root length of cuttings. However, treatments with IBA and A. brasilense had no impact on % rooted cuttings and % survival of cuttings.

scholarly journals Germinação e desenvolvimento de plântulas de girassol ornamental em substratos

2018 ◽  
Vol 24 (4) ◽  
pp. 303-310 ◽  
Author(s):  
Patrick Luan Ferreira Dos Santos ◽  
Regina Maria Monteiro De Castilho
Keyword(s):  
Slow Release ◽  
Dry Mass ◽  
Pine Bark ◽  
Rice Hull ◽  
Coconut Fiber ◽  
Expanded Vermiculite ◽  
Fresh And Dry Mass ◽  
Mean Time ◽  
Growing Crop ◽  
The Ideal

The ornamental sunflower is a growing crop in recent years due to its rapid return on investment and expressive representation in the flower market, and research on the ideal substrate for seedling production is essential to maximize information for the crop. Thus, the objective was to evaluate the germination and development of ornamental sunflower seedlings in different substrates compositions. The experiment was installed in a greenhouse, where they were put to germinate, seeds of sunflower type “Vincent’s Choice” in poliestileno trays on substrates with or without addition Slow Release Fertilizer (SRF) at the dose 2 g L-1. The experimental design was completely randomized with 4 treatments [T1- Charcoal + pine bark + peat + expanded vermiculite (1:1:1:1), T2- Coconut fiber + carbonized rice hull + peat + expanded vermiculite (1:1:1:1), T3- Charcoal + pine bark + peat + expanded vermiculite (1:1:1:1) + SRF, T4- Coconut fiber + Carbonized rice hull + peat + expanded vermiculite (1:1:1:1) + SRF] with 8 replicates of 8 seeds, totaling 64 seeds per substrate. It was evaluated: the percentage, index and average germination time, chlorophyll content, length, fresh and dry mass of shoot and root. It was observed that there was no difference in the percentage of germination, but T2 and T4 promoted emergency in the lowest mean time (3.19 and 3.46 days, respectively) with a higher rate of velocity (2.43 and 2.25 respectively), still, T4 presented increments with more than 50% of fresh and dry mass. Thus, it is concluded that the T4 substrate is recommended for germination and development of ornamental sunflower type “Vicent’s Choice”.

scholarly journals Substrate composition and indolebutyric acid on the propagation of Eplingiella fruticosa from cuttings

2017 ◽  
Vol 47 (12) ◽  
Author(s):  
Anderson de Carvalho Silva ◽  
Lenaldo Muniz de Oliveira ◽  
Aritana Alves da Silva
Keyword(s):  
Experimental Design ◽  
Growth Period ◽  
Dry Mass ◽  
Effective Practices ◽  
Northeast Brazil ◽  
Indolebutyric Acid ◽  
Rooted Cuttings ◽  
Woody Perennial ◽  
Leaf Dry Mass ◽  
Mother Plants

ABSTRACT: Eplingiella fruticosa (Salzm. ex Benth.) Harley & J.F.B. Pastore, also known as “alecrim de vaqueiroâ€� or “cowboy rosemaryâ€�, is a woody, perennial, and aromatic shrub that growsin the states of northeast Brazil, with the exception of Alagoas, Maranhão, and PiauÃ. The plant is widely used in this region and has analgesic, vasodilator, anti-inflammatory, and larvicidal properties.The objective of this study was to evaluate the effect of different substrates and indolebutyric acid (IBA) on cuttings of E. fruticosa for identifying effective practices for the vegetative propagation of this species. Apical cuttings with a standardized length of 10cm and two pairs of leaves were harvested from mother plants in the vegetative stage. Two experiments were conducted: the first experiment tested the effect of three substrates (commercial, commercial + vermiculite, and commercial + vermiculite + humus) and the second experiment evaluated five concentrations of IBA (0.0, 1.0, 2.0, 3.0, and 4.0gL−1) and three growth periods (30, 45, and 60 days). The experimental design was randomized blocks with four replications. The analyzed variables were survival of cuttings, number of rooted cuttings, root length per cutting (RLC), number of buds per cutting (NBC), leaf dry mass (LDM), root dry mass (RDM), and total dry mass (TDM). In thefirst experiment,there were significant differences in RLC, NBC, LDM,RDM, and TDM, with a better growth using the commercial substrate. In the second experiment, there was no interaction between the evaluated parameters. However, there was a positive associated effect of IBA addition and the growth period on RLC, NBC, LDM, and RDM. The highest predicted value was attained for a concentration of 1.5g L−1IBA and a growth period of 60 days, for the above-mentioned variables.

scholarly journals Rooting of herbaceous cuttings of Malpighia emarginata D.C. (CAMB-06 and APU-04 selections) associated with the use of indolebutyric acid and liquid extract of Cyperus rotundus L.

2020 ◽  
Vol 42 (1) ◽  
Author(s):  
Débora Thaís Mühlbeier ◽  
Renata Koyama ◽  
Osmar Jose Chaves Junior ◽  
Ibrar Hussain ◽  
Neusa Maria Colauto Stenzel ◽  
...  
Keyword(s):  
Experimental Design ◽  
Aqueous Extract ◽  
Dry Mass ◽  
Cyperus Rotundus ◽  
Indolebutyric Acid ◽  
Rooted Cuttings ◽  
Liquid Extract ◽  
Malpighia Emarginata ◽  
Cutting Length ◽  
Rooting Of Cuttings

Abstract The objective of this work was to evaluate the rooting of herbaceous cuttings of CAMB-06 and APU-04 acerola cherry selections associated with the use of indolebutyric acid (IBA) and a concentration of aqueous extract of coco-grass. Cuttings were treated by immersion with different concentrations of IBA (0; 1,000; 2,000; 3,000; 4,000 mg L-1) and one application of aqueous extract of coco-grass in proportion 100% and placed to root in plastic boxes containing vermiculite. The experimental design was a completely randomized in a 2×6 factorial arrangement (two acerola cherry selections and six solutions for rooting) with four replicates of ten cuttings. After 90 days of cutting, the following variables were evaluated: cutting survival (%); leaf retention (%); rooted cuttings (%); sprouting (%); number of roots per cutting (%); length of roots (cm) and dry mass of roots per cutting (g). It was concluded that the application of IBA at 4,000 mg L-1 presented a better root development, resulting in a higher percentage of rooted cuttings and higher number and dry mass of roots in relation to IBA at 0 mg L-1 for CAMB-06 selection, while the APU-04 selection can be efficiently multiplied by herbaceous cuttings without the use of IBA. Under the conditions that the trials was conducted, the application of 100% aqueous extract of coco-grass was not effective in promoting the rooting of cuttings of CAMB-06 and APU-04 acerola cherry selections.

scholarly journals Time of treatment with IBA in Olive cultivars rooting

2018 ◽  
Vol 40 (1) ◽  
Author(s):  
Verena Heloise Hanel Inocente ◽  
Alexandre Augusto Nienow ◽  
Laura Tre
Keyword(s):  
Experimental Design ◽  
Positive Relationship ◽  
Treatment Time ◽  
Irrigation System ◽  
Olive Tree ◽  
Indole Butyric Acid ◽  
System Type ◽  
Olive Cultivars ◽  
Leaf Retention ◽  
Mist Chamber

Abstract Phytoregulators such as indole butyric acid (IBA), have been used in the process of olive tree rooting in the form of concetrated hydroalcoholic solutions. The objective of this present study was to evaluate the efficiency of a low concentration of IBA (300 mg L-1), diluted in a solution of only 10% of alcohol 70 oGL, in the rooting of four olive tree cultivars (Arbequina, Arbosana, Frantoio and Koroneiki), treated in different times of base immersion (0, 1, 2, 4 and 8 hours). The rooting was carried out in november 2015, in greenhouse with an irrigation system type intermittent mist chamber. The cuttings standard were 12 cm length and two pairs of leaves, planted in plastic tubings, containing carbonized rice husk as substrate. The experimental design was achieved in randomized blocks, in factorial arrangement of 4 x 5, with four replications and 12 cuttings per plot. After 70 days of rooting it was verified that the increase of treatment time affected the leaf retention, survival and rooting negativelly. Leaf retention presented positive relationship with survival and rooting. The treatment for one hour in a solution of IBA was effective in the cuttings rooting stimulus of cultivar Arbosana (66,7%). Cultivars Koroneiki and Arbequina presented low or null rooting whether or not the IBA was used.

scholarly journals Influência do número de folíolos e nós no enraizamento de estacas semilenhosas de cipó-de-são-joão

2015 ◽  
Vol 21 (3) ◽  
pp. 339
Author(s):  
Marília Milani ◽  
Willian Heintze ◽  
Gilmar Schafer ◽  
Paulo Vitor Dutra De Souza
Keyword(s):  
Experimental Design ◽  
Technical Information ◽  
Dry Weight ◽  
Dry Mass ◽  
Rooted Cuttings ◽  
Rice Hulls ◽  
First Order ◽  
Number Of Leaves ◽  
Pyrostegia Venusta

The flame vine (Pyrostegia venusta (Ker-Gawl.) Miers) is a semihardwood vine, vigorous, native, native, occurring in all Brazilian biomes and ornamental potential. Technical information about the propagation of this species will contribute to the production of seedlings and with that, their greatest use in landscaping. This study aimed to evaluate the influence of the number of leaves and nodes in rooting intermediate flame vine. The experiment was conducted under conditions of intermittent mist. The experimental design was a randomized block in factorial 2 x 3, being respectively cuttings with one or two nodes, and zero, one or two leaflets. We used four replicates with plots consisting of 12 cuttings placed in substrate of rice hulls in polystyrene trays with 72 cells. We evaluated at 84 days the porcentage of rooted cuttings, length of shoots, dry weight of shoots and, per cutting, average: number of roots - first order; maximum length of each root of the first order, volume and dry weight of roots. It was observed that cuttings with two leaflets enabled 66% of rooting, greater length and dry mass of shoots. The higher quality of the root system occurs with stakes with two leaflets and two nodes. The spread of flame vine is efficient with semi-hardwood cuttings with two nodes and two leaflets, kept in a greenhouse under intermittent mist.

Water filtration using rice hull ash

Waterlines ◽  
1983 ◽  
Vol 2 (2) ◽  
pp. 21-23 ◽  
Author(s):  
Barnes ◽  
Mampitiyarachichi
Keyword(s):  
Water Filtration ◽  
Rice Hull ◽  
Rice Hull Ash

scholarly journals Solid Reactant-Based Geopolymers from Rice Hull Ash and Sodium Aluminate

2016 ◽  
Vol 8 (6) ◽  
pp. 2131-2140 ◽  
Author(s):  
Ailar Hajimohammadi ◽  
Jannie S. J. van Deventer
Keyword(s):  
Sodium Aluminate ◽  
Rice Hull ◽  
Rice Hull Ash ◽  
Solid Reactant

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 Growth analysis of sweet pepper cultivated in coconut fiber in a greenhouse

2011 ◽  
Vol 29 (3) ◽  
pp. 316-323 ◽  
Author(s):  
Hamilton César de O Charlo ◽  
Sueyde F de Oliveira ◽  
Renata Castoldi ◽  
Pablo F Vargas ◽  
Leila T Braz ◽  
...  
Keyword(s):  
Growth Analysis ◽  
Dry Mass ◽  
Sweet Pepper ◽  
Absolute Rate ◽  
Coconut Fiber ◽  
First Order ◽  
Growth Production ◽  
Four Blocks ◽  
Over Time

Knowledge about the growth of crops allows the planning of rational cultivation methods which contribute to achieve greater potential of plant species, besides supplying information for the construction of descriptive mathematical models of growth. The growth curve of sweet pepper (Eppo hybrid), cultivated in coconut fiber in a greenhouse with fertirrigation, was determined. The experiment consisted initially of 160 plants divided into four blocks. Two plants were analyzed per block every 21 days after transplanting, ending at 189 days after transplant. The cultivation was carried out in plastics pots of 13 L containing coconut fiber, which were arranged in double rows, spaced 0.5 x 0.8 m between simple rows and 1.1 m between double rows. In each harvest the plant growth, production and quality of mature fruits were evaluated. The dry mass of the shoot increased with time, following the experimental model exponential of first order, reaching a maximum of 451.5 g/plant, 189 days after transplanting (DAT). The production of dry mass of leaves, stem, root and fruit also increased over time reaching maximum values of 68.7, 65.8, 11.5 and 302.9 g/plant, respectively, at 189 DAT. The same occurred with the leaf area per plant, plant height and the absolute rate of growth, whose maximum values were 6.183,5 cm², 136.9 cm and 4.4 g/plant/day, respectively. The growth of the plant was continuous throughout the cycle, and the highest amount of dry mass was accumulated in fruits, reaching a marketable production of 97.3 t ha-1. All fruits were classified as Extra.

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