scholarly journals Rooting Stem Cuttings of Herbaceous and Woody Ornamentals in Substrates Containing Eastern Redcedar (Juniperus virginiana)

2015 ◽  
Vol 33 (4) ◽  
pp. 155-159
Author(s):  
Justin A. Brock ◽  
Jason J. Griffin ◽  
Cheryl R. Boyer

Propagation substrates can strongly influence rooting success of stem cuttings. Eastern redcedar (Juniperus virginiana L.) chips (ERC) have been suggested as a propagation substrate component. This study investigated ERC as a perlite substitute in a perlite:sphagnum peat moss (3:1 v/v) rooting substrate. Stem cuttings of coleus [Solenostemon scutellarioides (L.) Codd], English ivy (Hedera helix L.), forsythia (Forsythia ×intermedia Zab.), lantana (Lantana camara L.), and spreading euonymus (Euonymus kiautschovicus Loes.) were rooted in substrates containing increasing concentrations of ERC hammer-milled to pass a 4.8 mm (0.19 in) screen. All species rooted well (≥ 95%) in all substrates except forsythia which rooted poorly in all substrates (8 to 36%). ERC concentration did not affect mean root number or mean root length in any species except spreading euonymus where mean root number peaked at 0 and 100% ERC content and mean root length decreased with increasing ERC content. Bulk density, container capacity, and total porosity increased as ERC replaced perlite. Physical properties of all substrates were suitable for cutting propagation. ERC can effectively replace perlite in rooting substrates for many ornamental species.

2014 ◽  
Vol 32 (3) ◽  
pp. 167-173
Author(s):  
Lucy E. Edwards ◽  
Adam F. Newby ◽  
Charles H. Gilliam ◽  
Glenn B. Fain ◽  
Jeff L. Sibley ◽  
...  

Peat moss and perlite have been major components in greenhouse substrates for over 50 years; however, shortages could occur due to restrictions from environmental concerns, fuel cost, and weather conditions. Due to these factors, research continues to seek available materials as alternative substrate components. These studies evaluated processed eastern redcedar (Juniperus virginiana L.) as an alternative substrate in the greenhouse production of four annual species: petunia (Petunia ×hybrida Juss.), annual vinca [Catharantus roseus (L.) G. Don], wax begonia (Begonia semperflorens-cultorum Hort.), and plumed cockscomb (Celosia argentea L.). Three screen sizes of hammer-milled eastern redcedar (ERC) were used including 0.64, 0.95, and 1.27 cm (0.25, 0.38, and 0.5 in). Plants were grown in peat moss amended with either 25 or 50% ERC (combinations of three screen sizes) and compared to a standard 80:20 peat:perlite mix. Plant growth was similar for petunia and vinca in 50% ERC (1.27 cm screen size) compared to those grown in 80:20 peat:perlite. Plants grown in 25% ERC were similar to plants grown in 80:20 peat:perlite mix for all species in all screen sizes. Root growth was similar to or greater for plants in substrates with 25% ERC when compared to the standard peat:perlite treatment. Amending peat with up to 25% eastern redcedar is an acceptable practice for the four annual species used in this study.


1999 ◽  
Vol 17 (3) ◽  
pp. 123-125
Author(s):  
Jason J. Griffin ◽  
Frank A. Blazich ◽  
Thomas G. Ranney

Abstract Shoot tip cuttings of Quercus phillyraeoides A. Gray ‘Emerald Sentinel’ (‘Emerald Sentinel’ oak), in a transitional growth stage between softwood and semi-hardwood, were collected from containerized plants growing under uniform fertility on June 4, 1998. Cuttings were treated with talc formulations of indolebutyric acid (IBA), ranging from 0 to 8000 ppm (0.8%), and placed under intermittent mist with shade levels excluding 0%, 30%, 60% or 90% of full solar irradiance. After 14 weeks, percent rooting averaged 18% and was unaffected by either IBA concentration or shading regime. Similarly, both mean root number per rooted cutting and mean root length were unaffected by IBA concentration or shading. Roots per rooted cutting and mean root length averaged 2.6 and 41 mm (1.6 in), respectively. Results suggest that shading stem cuttings of ‘Emerald Sentinel’ during propagation does not affect rooting.


2007 ◽  
Vol 25 (3) ◽  
pp. 126-130
Author(s):  
Eugene K. Blythe ◽  
Jeff L. Sibley

Abstract Stem cuttings of Abelia ‘Edward Goucher’, Buxus sinica var. insularis ‘Wintergreen’, Hedera helix, Hibiscus syriacus ‘Collie Mullens’, Ilex vomitoria ‘Nana’, Juniperus conferta ‘Blue Pacific’, and Rosa ‘Red Cascade’ received a basal quick-dip in solutions of Dip ‘N Grow at concentrations of 0 + 0, 50 + 25, 250 + 125, 500 + 250, 750 + 375, and 1000 + 500 ppm IBA + NAA prepared with and without 13.5 g/liter sodium cellulose glycolate (SCG) as a thickening agent. Cuttings of Ilex vomitoria ‘Nana’ exhibited increased rooting with increasing auxin concentration with inclusion of SCG. The other six taxa exhibited similar rooting percentages among all treatments, but exhibited an increase in root number and/or total root length with inclusion of SCG. Initial shoot growth on rooted cuttings of Abelia ‘Edward Goucher’ showed some reduction with increasing auxin concentration with inclusion of SCG, suggesting cuttings absorbed more auxin from solutions containing SCG owing to their extended period of exposure to the auxin. Otherwise, there were no negative responses to solutions containing SCG. The greater viscosity of solutions prepared with SCG can help reduce the possibility of spillage and evaporation of alcohol during use of the auxin solutions.


2000 ◽  
Vol 10 (4) ◽  
pp. 780-784
Author(s):  
Rolston St. Hilaire ◽  
Carlos A. Fierro Berwart

The effects of 1H-indole-3-butyric acid (IBA), cutting position on stock plants, the date of propagation, the type of rooting substrate and temperature on rooting of mussaenda (Mussaenda erythrophylla Schumach. & Thonn. `Ashanti Blood' and `Rosea', and Mussaenda philippica A. Rich `Aurorae') stem cuttings were determined. Cuttings of `Ashanti Blood' produced the largest number of roots when treated with 15 mmol (3000 ppm) IBA and rooted in perlite at 29 °C (84 °F). Cutting position on stock plants did not affect rooting in any of the three cultivars. Propagation date and temperature of the rooting medium affected root numbers in `Aurorae'. With `Rosea', only the type of rooting substrate affected root number. Rooting percentage was 22%, 48%, and 39% in `Ashanti Blood', `Aurorae', and `Rosea' respectively. After 30 days of propagation average root length was 4, 12, and 4 mm (0.2, 0.5, and 0.2 inch) in `Ashanti Blood', `Aurorae', and `Rosea' respectively. Growers must determine precise rooting conditions for each cultivar to obtain consistent rooting of cuttings. This process may not be economically feasible on a commercial basis because rooting percentages are relatively low. We conclude that other methods of clonal propagation need to be evaluated before uniform rooted stem cuttings of mussaenda can be produced economically.


2014 ◽  
Vol 6 (2) ◽  
pp. 192-195
Author(s):  
Hamid HASSANPOUR ◽  
Mohamad ALI SHIRI

Clonal propagation of Cornelian cherry (Cornus mas L.) from cuttings will permit nursery production of cloned Cornelian cherry and encourage selection of superior genotypes. The effects of indole-3-butyric acid (IBA) concentrations, five genotypes and two types of media on root performance of Cornelian cherry cuttings were investigated. The percentage of rooted cuttings, mean root length, average root number per cutting, root fresh weight and root dry weight were recorded after three months. Orthogonal contrasts were used to test the effects of the auxin treatments. Regression analysis for determination of appropriate equation was performed. The IBA treatment increased the rooting percentage in genotype C1, C3 and C4 but did not affect that of genotype C2 and C5. The maximum rooting percentage, mean root length, average root number per cutting, root fresh weight and root dry weight was obtained for C3 genotype and in sand media. No statistically significant correlation was observed between callusing and other measured parameters but the rest of parameters correlate statistically with rooting. According to the regression results, it was clear that the pattern of quadratic function was better than other models for rooting. The highest rooting percentage was obtained from C3 genotype. Therefore, clonal production of this genotype is practical.


1998 ◽  
Vol 16 (4) ◽  
pp. 212-214
Author(s):  
Jason J. Griffin ◽  
Frank A. Blazich ◽  
Thomas G. Ranney

Abstract Stem cuttings of Thuja L. x ‘Green Giant’ (‘Green Giant’ arborvitae), consisting of 22 cm (8.6 in) terminals (tips of first-order laterals) or 20 cm (7.8 in) laterals (side shoots removed from those portions of terminal cuttings inserted into the rooting medium), were collected on three dates associated with specific stock plant growth stages (softwood, semi-hardwood, and hardwood) and treated with indolebutyric acid (IBA) in 50% isopropanol ranging from 0 to 9000 ppm (0.9%). Regardless of cutting type or auxin treatment, cuttings rooted in high percentages at each growth stage. Overall rooting for softwood, semi-hardwood, and hardwood, cuttings was 85%, 86%, and 96%, respectively. Semi-hardwood cuttings were the only cuttings in which percent rooting was affected by IBA treatment or cutting type, with lateral cuttings rooting in higher percentages than terminal cuttings (92% vs. 79%, respectively), while IBA concentrations of 3000 (0.3%) or 6000 ppm (0.6%) proved optimal for both cutting types. Mean root number and mean root length varied by growth stage, cutting type, and IBA concentration. In general, rooting percentages and root length were optimized at the hardwood stage with either cutting type treated with 3000, 6000 or 9000 ppm (0.3%, 0.6% or 0.9%) IBA, resulting in >10 roots per cutting.


HortScience ◽  
2005 ◽  
Vol 40 (3) ◽  
pp. 875d-875
Author(s):  
C. N. Johnson ◽  
D. J. Eakes ◽  
L. L. Bruner ◽  
A. N. Wright ◽  
J. L Sibley

Clematis socialis Kral, also known as the Alabama Leatherflower, is an endangered species with only six known populations in northeast Alabama and northwest Georgia. Cutting propagation of the species would be beneficial for establishing additional self-sustaining populations and providing genetic material for future hybridization. A study conducted in 2000 and 2004 determined the effects of four nonamended substrates on root initiation and growth, as well as survival of C. socialis stem cuttings. Of the four substrates tested, including sand, perlite, vermiculite, and 1:1:1 (by volume) peat (P): pine bark (PB): sand (S), cutting survival was highest in sand in both 2000 and 2004. In 2000, sand also produced the longest roots and highest root quality. Vermiculite produced the longest and most roots and highest root quality in the 2004 study. In 2004, cuttings rooted in fine-particled substrates, such as sand and vermiculite, had higher cutting survival, root growth, root number, and root quality than those rooted in perlite and 1:1:1 (by volume) P:PB:S. The 1:1:1 P:PB:S substrate produced the lowest averages for all data collected in both the 2000 and 2004 studies. Sand was among the two highest performing media in both years, regardless of differences in IBA concentration, misting times, and environmental conditions, making it the overall best substrate for rooting C. socialis stem cuttings. Increasing the concentration of IBA in the rooting solution, providing a cooler environment, and decreasing the number and duration of misting cycles the cuttings received increased cutting survival, root length, root number, and root quality for all four substrates from 2000 to 2004.


2014 ◽  
Vol 32 (4) ◽  
pp. 189-192
Author(s):  
Justin A. Brock ◽  
Jason J. Griffin

Stump sprouts of stooled caddo sugar maple (Acer saccharum Marsh. subsp. saccharum) (caddo maple) and shantung maple (A. truncatum Bunge) were propagated by mound layering. In early summer, shoot bases were wounded and treated with 0, 10,000, 15,000, or 20,000 ppm (0, 1.0, 1.5, or 2.0%) indole-3-butyric acid (IBA) dissolved in 50% ethanol or 0, 5,000, or 10,000 ppm (0, 0.5, or 1.0%) of the potassium (K) salt of IBA (K-IBA) dissolved in water. Shoot bases were covered with a commercial growing substrate containing bark, Sphagnum peat moss, and perlite and retained by plastic rings 38 cm (15 in) in height. Rooted shoots were harvested in fall or late winter. Auxin concentration influenced rooting of caddo maple and shantung maple mound-layered shoots. Rooting peaked at 15,000 ppm (1.5%) IBA for both caddo maple (71%) and shantung maple (34%). Mean root number for caddo maple, but not shantung maple, increased as IBA concentration increased. Differences in mean root length were not significant. Results suggest caddo maple can be successfully propagated by mound layering. For shantung maple propagation, mound layering was less successful, so alternatives such as stem cuttings should be considered.


1992 ◽  
Vol 117 (4) ◽  
pp. 568-570 ◽  
Author(s):  
Paul H. Henry ◽  
Frank A. Blazich ◽  
L. Eric Hinesley

Hardwood stem cuttings of eastern redcedar (Juniperus virginiana L.), taken from containerized stock plants fertilized weekly with 0, 5, 10, 20, 40, 80, 160, 320, or 640 ppm N, were treated with 7500 ppm IBA and placed under intermittent mist for 12 weeks. Foliar starch and sucrose concentrations within cuttings at time of excision were significantly correlated with percent rooting and root length, respectively. Of the mineral nutrients analyzed (N, P, K, Ca, Mg, Mn, and B), only B and K were significantly correlated with rooting response. A threshold N level (20 ppm), applied weekly, maximized rooting; higher concentrations decreased response. Although N fertilization of stock plants affected adventitious rooting, there were no significant correlations between foliar N levels and measures of rooting response. Chemical name used: 1 H- indole-3-butyric acid (IBA).


AGRICA ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 86-98
Author(s):  
Philipus.N. Supardi ◽  
Sivester Seda

This study aims to determine the effect of immersion time with the vanilla stem cuttings of plan growth regulators Rotoone – F of credit for the growth of roots and shoots of vanilla cuttings. The treatment used in this study is A0 (without immersion), A1 (immersion time 5 min), A2 (soaking time 10 min), and A3 (soaking time 15 min) variable observation in this study is the number of shoots, root number, number of The firs day of growing shoots, shoots length, root length, root diameter, wet weight and dry weight of cuttings of vanilla. The result showed that root growth best to treatment with the immersion time of 15 min (A3) is indicated by the highest number of roots, root length and diameter to treatment with the highest root of soaking time 15 min (A3) in 14 to 28 HST HST. The result showed that the growth of shoots best to treatment with the immersion time of 15 min (A3) is indicated by a number of days the first shoots to grow the fastest, most number of shoots, shoot length, wet weight and dry weight of the highest in treatments with soaking time 15 (A3) in 14 HST to 28 HST.


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