scholarly journals Cutting Propagation and Container Production of ‘Flora Sun’ Beach Sunflower

2000 ◽  
Vol 18 (4) ◽  
pp. 185-187
Author(s):  
Jeffrey G. Norcini ◽  
James H. Aldrich

Abstract Helianthus debilis Nutt. ssp. debilis ‘Flora Sun’, ‘Flora Sun’ beach sunflower, is a native, herbaceous perennial that should be propagated by cuttings to maintain its genetic and phenotypic fidelity. Stem cuttings were treated with a quick dip of a potassium salt of 1H-indole-3-butyric acid (K-IBA) solution at 0, 250, 500, 1000, 1500, 2000, 2500, or 3000 mg/liter (ppm) and rooted under intermittent mist. The root systems of six of twelve cuttings were harvested 17 and 21 days after treatment. The remaining six cuttings were transplanted in a soilless substrate to determine the effects of K-IBA on establishment in containers. Treatment of stem cuttings with K-IBA increased the number of roots and root fresh weight when cuttings were rooted under summer greenhouse conditions, but K-IBA did not provide any substantial short-term benefits in survival or growth of rooted cuttings after they were transplanted into plastic containers.

2018 ◽  
Vol 28 (3) ◽  
pp. 378-381
Author(s):  
Bryan J. Peterson ◽  
Stephanie E. Burnett ◽  
Olivia Sanchez

Although overhead mist revolutionized the propagation industry, it does suffer from potential drawbacks that include the application of large volumes of water, potentially unsanitary conditions, irregular misting coverage, and leaching of foliar nutrients. We explored the feasibility of submist as an alternative as it might avoid these problems by applying water exclusively from below the cutting, which is inserted basally into an enclosed rooting chamber. We propagated cuttings of korean lilac (Syringa pubescens ssp. patula) and inkberry (Ilex glabra) using both overhead mist and submist to compare effectiveness of the systems. Cuttings of korean lilac were wounded and dipped basally into 8000 mg·L−1 of the potassium salt of indole-3-butyric acid (K-IBA), and those in the overhead mist systems were inserted into coarse perlite. Cuttings of inkberry were wounded and treated with 5000 mg·L−1 K-IBA, and those in the overhead mist systems were inserted into 50:50 peat:perlite (by vol). Cuttings of korean lilac in the submist systems produced more than twice as many roots as cuttings in the overhead mist systems, with roots more than 2.6 times the length. Similarly, cuttings of inkberry in the submist systems produced more than three times the root counts and root lengths as cuttings in the overhead mist systems. For korean lilac, root dry weights averaged 58 mg for cuttings in the submist system, compared with only 18 mg among cuttings receiving overhead mist. Likewise, root dry weights averaged 70 and 7 mg for cuttings of inkberry propagated by submist and overhead mist, respectively. Rooted cuttings of korean lilac transplanted well into a soilless substrate, where they more than tripled their root biomass to 218 mg (vs. 59 mg for cuttings transplanted from overhead mist). We did not evaluate transplant performance of inkberry. Our results show that submist systems might merit consideration for the propagation of woody plants by leafy stem cuttings.


HortScience ◽  
2002 ◽  
Vol 37 (4) ◽  
pp. 697-700 ◽  
Author(s):  
Paula M. Pijut ◽  
Melanie J. Moore

Juglans cinerea L. (butternut) is a hardwood species valued for its wood and edible nuts. Information on the vegetative propagation of this species is currently unavailable. Our objective was to determine the conditions necessary for successful stem-cutting propagation of butternut. In 1999 and 2000, 10 trees (each year) were randomly selected from a 5- and 6-year-old butternut plantation located in Rosemount, Minn. Hardwood stem cuttings were collected in March, April, and May. Softwood cuttings were collected in June and July. K-IBA at 0, 29, or 62 mm in water and IBA at 0, 34, or 74 mm in 70% ethanol were tested for root induction on cuttings. The basal end of cuttings were dipped in a treatment solution for 10 to 15 seconds, potted in a peat: perlite mixture, and placed in a mist bed for 5 to 8 weeks. Rooted cuttings were gradually hardened off from the mist bed, allowed to initiate new growth, over-wintered in a controlled cold-storage environment, and then outplanted to the field. For hardwood cuttings, rooting was greatest for those taken in mid-May (branches flushed out), 22% with 62 mm K-IBA and 28% with 74 mm IBA. Softwood cuttings rooted best when taken in June (current season's first flush of new growth or softwood growth 40 cm or greater) and treated with 62 mm K-IBA (77%) or 74 mm IBA (88%). For 1999, 31 out of 51 rooted softwood cuttings (60.8%) survived overwintering in cold storage and acclimatization to the field. For 2000, 173 out of 186 rooted softwood cuttings (93%) survived overwintering and acclimatization to the field. Chemical names used: indole-3-butyric acid-potassium salt (K-IBA); indole-3-butyric acid (IBA).


2010 ◽  
Vol 28 (2) ◽  
pp. 69-73
Author(s):  
Jeff R. Jones ◽  
Anthony V. LeBude ◽  
Thomas G. Ranney

Abstract Deciduous azaleas (Rhododendron L.) offer a range of desirable ornamental characteristics and can be valuable nursery crops. Availability in the nursery trade, however, can be limited by the lack of effective propagation protocols. Therefore, the objectives of this research were to develop and optimize vegetative propagation protocols for Oconee azalea, Rhododendron flammeum (Michx.) Sarg., utilizing stem cuttings or in-field mound layering. An optimal method for producing rooted stem cuttings with large root systems (> 20 cm2) was to collect softwood stem cuttings from hedged stock plants followed by treatment with 10,000 ppm of the potassium salt (K-salt) of indolebutyric acid (K-IBA). Mound layering was also effective. Fifty percent of the stems on each mound resulted in rooted layers and approximately six layers were produced per mound regardless of mounding season (March or June), with or without wounding, or application of 5000 ppm K-IBA to stems prior to mounding in June. Both softwood cuttings and mound layering can be utilized to produce high quality plants.


Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1151
Author(s):  
Ricardo A. Lesmes-Vesga ◽  
José X. Chaparro ◽  
Ali Sarkhosh ◽  
Mark A. Ritenour ◽  
Liliana M. Cano ◽  
...  

Traditionally, peach rootstocks are propagated by seeds due to their high availability, low cost, and easy storage and handling. However, stem cuttings allow the propagation of interspecific hybrids and keep the genetic uniformity of heterozygous genotypes. This study compared the effect of four different concentrations of K-IBA (indole-3-butyric acid potassium salt) on softwood cuttings of three peach backcrosses (peach × (peach × almond)) for rootstock propagation in two propagation systems: aeroponics and germination trays. The four concentrations of K-IBA applied were: 0.0% (w/v) as a control, 0.1% (w/v), 0.2% (w/v), and 0.4% (w/v). Data were collected on the survival rate (%), rooting rate (%), and root growth parameters. The relevance of auxin for peach cuttings rooting was evidenced. K-IBA at 0.2% showed the best rooting effect for peach softwood cuttings, evidenced by its high rooting rate and higher survival rate. K-IBA at 0.4% and 0.2% produced the highest number of adventitious roots. The highest root growth parameters were obtained in germination trays, confirming the suitability of this system for root growth. However, aeroponics was demonstrated to be as efficient as the traditional germination trays for the rooting of peach cuttings, allowing for a more controlled environment with a better use of resources.


Author(s):  
Sina Kordzadeh ◽  
Hassan Sarikhani

The rootstock GF677 is an interspecific hybrid with an important economic and horticultural value. In this research, the effect of indole butyric acid (IBA) in combination with putrescine (Put) and hydrogen peroxide (H2O2) on rooting of GF677 semi-hardwood stem cuttings in three cutting seasons (July, March and October) was investigated. Treatments as IBA (0, 1000, 2000 and 3000 mg L-1), Put (0, 800, 1600 and 3200 mg L-1) and H2O2 (1.5, 3 and 6% w/v) were included. The results showed that in July cuttings, the highest levels of callogenesis were observed in IBA treated cuttings in both concentrations of 1000 and 2000 mg L-1. The rooting was very low in July cuttings, while the highest percentage of rooting (14%) was observed in the combination of 2000 mg L-1 IBA+ 3% H2O2. In March, the cuttings treated by 1000 mg L-1 IBA+800 mg L-1 Put and 1000 mg L-1 IBA+1600 mg L-1 Put revealed the highest percentages of callus formation 83.31 and 83.33%, respectively. In these cuttings, the highest percentage of rooting (63.88%) was gained at 2000 mg L-1 IBA+3200 mg L-1 Put. The application of 1000 mg L-1 IBA+800 mg L-1 Put increased root fresh weight. In cuttings prepared in October, only 800 mg L-1 Put caused callus formation in more than 55% of the cuttings. The rooting of cuttings at this time was as low as the July cuttings, whereas the highest rooting percentage was observed in cuttings treated with IBA at a concentration of 1000 mg L-1. Overall, the experiment showed that the season of the cutting and the treatments with IBA+Put or H2O2 could improve rooting properties of the rootstock GF677.


HortScience ◽  
2005 ◽  
Vol 40 (3) ◽  
pp. 884d-884
Author(s):  
Eugene K. Blythe ◽  
Jeff L. Sibley ◽  
John M. Ruter

Stem cuttings of golden euonymus (Euonymus japonicus `Aureo-marginatus'), shore juniper (Juniperus conferta `Blue Pacific'), white indian hawthorn (Rhaphiolepis indica `Alba'), and `Red Cascade' miniature rose (Rosa `Red Cascade') were successfully rooted in plugs of a stabilized organic substrate that had been soaked in aqueous solutions of the potassium salt of indole-3-butyric acid (K-IBA) at 0 to 75 mg·L–1 before inserting the cuttings. Cuttings were rooted under intermittent mist in polyethylene-covered greenhouses with rooting periods appropriate for each species. Rooting percentages showed some increase with increasing auxin concentration with juniper cuttings, but were similar among treatments for the other three species. Number of roots per rooted cutting increased with increasing auxin concentration with cuttings of juniper, Indian hawthorn, and rose, and was greatest using around 60 mg·L-1 K-IBA for cuttings of juniper and Indian hawthorn and 30 to 45 mg·L-1 K-IBA for cuttings of rose.


HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 458F-459
Author(s):  
Paula M. Pijut ◽  
Melanie J. Barker

Butternut trees are becoming endangered as a result of butternut canker disease; thus, it is desirable to propagate disease-resistant trees for screening and provenance tests. The objective of this study was to determine the conditions necessary for successful cutting propagation. In 1998, 10 trees were selected from a 4-year-old butternut plantation located in Rosemount, Minn. Hardwood cuttings were collected 30 Mar., 21 Apr., and 6 May. The auxins, indole-3-butyric acid-potassium salt (KIBA) in water at 0, 29, or 74 mmol·L-1 were tested for root induction. The basal end of cuttings were dipped in treatment solutions for 10 to 15 s and placed in a 1 peat: 1 perlite mixture in Deepots™ (D40) in a mist bed. Mist was applied for 5 s every 15 min. Greenhouse conditions were: 12-h photoperiod provided by high-pressure sodium lamps (60 μmol·m-2·s-1), 22 °C, and bottom heat of 27 °C (heating pads). Softwood cuttings were collected 20 May, 18 June, 30 June, and 23 July. Rooting treatment solutions and greenhouse conditions were the same as for the hardwood cuttings, except no heating pads were used. Rooted cuttings were planted in Treepots™ (10 × 10 × 36 cm) and gradually hardened off from the mist bed. Hardwood cuttings from the first two collection dates did not initiate roots. Best rooting (12.5%) was achieved on hardwood cuttings collected 6 May using 29 mmol·L-1 KIBA. Softwood cuttings rooted to some degree at all concentrations of rooting solution and at every collection date. The greatest rooting (70%) was achieved using 74 mmol·L-1 IBA. In general, best rooting percentages were achieved with softwood cuttings collected 18 June and 23 July and treated with 62 mmol·L-1 KIBA or 74 mmol·L-1 IBA. Both rooted hardwood and softwood cuttings were successfully acclimatized from the mist bed and many have initiated new growth.


2014 ◽  
Vol 1 (2) ◽  
pp. 79-84
Author(s):  
Fadwa Mohammed Ahmed Ali ◽  
Yahia Hamid Ali Elbasheer

This paper describes a successful protocol of vegetative propagation by using stem cuttings of mature Peltophorum petrocarpum plants. The experiment was conducted in the nursery of the Forestry Research Centre at Soba during November 2011and April 2012. The socioeconomic importance of P. petrocarpum comes from its multipurpose uses and there is a demand in production of its seed for tree planting and domestication activities. Hence there is a need for efficient and economically feasible propagation method of P. pterocarpum. Therefore the objective of study is to develop a vegetative propagation protocol by using rooted stem cuttings; and to determine the effects of the rooting hormone indole-3-butyric acid (IBA) on rooting potentiality of stem cuttings of mature mother plants. The result revealed a significant effect (p<0.001) of IBA concentrations on rooting percentage and growth performance of stem cuttings. The highest rooting percent was obtained with 200ppm IBA which was not significantly different from 100ppm, but significantly different from 50 and 0.0ppm. The effect of IBA concentrations on root lengths and of roots per cutting was significantly different from 0.0 and 50ppm treatments. Although 100ppm IBA gave the tallest root (4.6 cm) but it was not significantly different from 200ppm (4.3 cm). Survival of rooted cuttings after transplanting from the propagator was 100% and 97% with 100 and 200mg IBA respectively. Accordingly the conclusion reached is that rooted cuttings can be used successfully for obtaining health, uniform plantations of P. petrocarpum for large-scale, biomass production and tree planting programmes.   


2014 ◽  
Vol 42 (2) ◽  
pp. 478-481 ◽  
Author(s):  
Leo SABATINO ◽  
Fabio D’ANNA ◽  
Giovanni IAPICHINO

Root development of stem cuttings of Silver Germander (Teucrium fruticans) was investigated in relation to cutting type and indole-3-butyric acid (IBA) treatment. Terminal cuttings of a clone grown in Sicily were trimmed to three types: terminal cuttings with apex (TWA), terminal cuttings without apex (TWOA) or sub-terminal cuttings (ST). To verify the cutting response to exogenous auxin, cuttings were dipped to a 2.0 cm depth in a 0.5% indole-3-butyric acid solution for 0, 5 or 7 minutes. Overall percent survival was 97 to 98%. Rooting percent, root number and root length were affected by cutting type and indole-3-butyric acid treatment. In general, TWA cuttings demonstrated a higher capacity to form roots than cuttings without apex (TWOA and ST cuttings). In absence of indole-3-butyric acid treatment, TWA and ST cuttings gave higher rooting percentages than TWOA cuttings. Exposing cuttings to indole-3-butyric acid improved percent rooting, number of roots per cutting and root length. The best results in terms of rooting percentage and root number per cuttings were obtained with TWA cuttings in combination with 7 min indole-3-butyric acid basal dip. However, cuttings taken farther down the stem, such as sub-terminal cuttings gave satisfactory rooting performance as well. We suggest that the use of all cutting types tested associated to indole-3-butyric acid basal dip for 5 or 7 min may be beneficial to propagators wishing to produce T. fruticans rooted cuttings with well-developed root system.


2018 ◽  
Vol 8 (4) ◽  
pp. 587-595 ◽  
Author(s):  
André Renato Rinaldi ◽  
Fabíola Villa ◽  
Daniel Fernandes da Silva ◽  
Rafael Massahiro Yassue

The objective of this study was to evaluate the asexual propagation of Dovyalis, through the use of substrates and cuttings. Three experiments were conducted in Marechal Cândido Rondon, Paraná State, Brazil, and the first experiment consisted of three removal positions of the cuttings (apical, middle and basal) x 4 Indole butyric acid (IBA) concentrations (0 mg L-1, 1000 mg L-1, 2000 mg L-1 and 3000 mg L-1); the second experiment evaluated the number of leaves in the cuttings (2, 4 and 6) x 3 cutting sizes (10, 15 and 20 cm); and the third experiment evaluated four substrates for rooting. The experiment was carried out in a randomized blocks design, with the first in a 3x4 and the second in a 3x3 factorial, respectively, containing 4 repetitions of 15 cuttings. The third experiment consisted of 5 repetitions of 15 cuttings. After the IBA treatment, the cuttings were taken to rooting in sandy beds during 70 days. The agronomical variables were evaluated. Basal and middle cuttings resulted in root systems with better development. The use of 1666 mg L-1 of IBA favors the Dovyalis cuttings rooting. Cuttings with 15 and 20 cm with four leaves favors the Dovyalis vegetative propagation. Dovyalis cuttings develop better on substrates containing latosol and vermiculite.


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