scholarly journals Auxin, Wounding, and Propagation Medium Affect Rooting Response of Stem Cuttings of Arbutus andrachne

HortScience ◽  
2001 ◽  
Vol 36 (5) ◽  
pp. 976-978 ◽  
Author(s):  
Mohammed M. Al-Salem ◽  
Nabila S. Karam
Keyword(s):  
Root Formation ◽  
Adventitious Root Formation ◽  
Chemical Form ◽  
Naphthaleneacetic Acid ◽  
Stem Cuttings ◽  
Acid Form ◽  
Root Number ◽  
Propagation Medium ◽  
Salt Forms ◽  
Rooting Response

Stem cuttings of Arbutus andrachne L. were taken from basal or terminal portions of branches in October and treated with acid or salt forms of IBA or NAA at several concentrations. Also, the effects of wounding and propagation medium were assessed. Auxin was necessary for root formation, IBA acid being most effective. In general, salt forms of IBA and NAA were less effective than acid forms. Concentration of auxin had a significant effect on rooting regardless of auxin type or chemical form. The greatest rooting percentage, root number, length, and fresh and dry weights were exhibited by basal cuttings treated with 24 mm IBA. Position of the cutting on the branch did not affect rooting except when the IBA acid form was used; basal cuttings were then superior to terminal ones. Wounding, by making two opposite longitudinal incisions at the base of the cutting, increased rooting. The propagation medium had a significant effect on adventitious root formation, which was enhanced with increasing perlite percentage in the medium up to 100%. Chemical names used:1H-indole-3-butyric acid (IBA); α-naphthaleneacetic acid (NAA).

scholarly journals Effects of Auxin Concentration and Medium Temperature on Four Woody Plant Taxa Propagated by Stem Cuttings using Recirculating Subirrigation in a Growth Chamber

2003 ◽  
Vol 21 (3) ◽  
pp. 126-130
Author(s):  
James S. Owen ◽  
William A. Johnson ◽  
Brian K. Maynard
Keyword(s):  
Root Formation ◽  
Woody Plant ◽  
Adventitious Root Formation ◽  
Stem Cuttings ◽  
Root Number ◽  
Medium Temperature ◽  
Root Numbers ◽  
Auxin Treatment ◽  
Auxin Concentration ◽  
Propagation Medium

Abstract Four woody plant taxa (‘Sparkleberry’ holly, ‘Mariesii’ viburnum, ‘Shasta’ viburnum, and Red Sunset® maple) were propagated from softwood stem cuttings in a recirculating subirrigation propagation system to evaluate the effect on adventitious root formation of three auxin (Dip-n-Grow®) concentrations [0 (water), 20: 1, or 10: 1] and three medium temperatures [20C (68F), 23C (74F), or 26C (79F)]. All taxa showed a positive rooting response to auxin treatment. Compared to cuttings treated with water, root number of all taxa doubled when treated with the highest auxin concentration (10: 1 Dip-n-Grow® dilution). Length of the longest root of rooted cuttings increased with auxin treatment of two taxa. Medium temperature also affected rooting of all taxa. The intermediate temperature evaluated, 23C (74F), was optimal for all rooting parameters on cuttings of ‘Mariesii’ viburnum, and for root length and percentage rooting on cuttings of ‘Shasta’ viburnum and Red Sunset® maple. A propagation medium temperature of 26C (79F) resulted in the greatest root number on cuttings of ‘Shasta’ viburnum, while 20C (68F) was optimal for root number on cuttings of Red Sunset® maple. Root numbers on cuttings of ‘Mariesii’ viburnum were reduced at 20C (68F) and 26C (79F), which appeared to be sub-and supra-optimal temperatures, respectively, for root initiation. All rooting parameters on cuttings of ‘Sparkleberry’ holly increased with propagation medium temperature. Temperature-auxin interactions were apparent for root number and length on cuttings of ‘Mariesii’ and ‘Shasta’ viburnum. The recirculating subirrigation system was useful for evaluating the basal temperature and auxin dose interactions and was effective for rooting softwood stem cuttings without intermittent mist irrigation.

scholarly journals Vegetative Propagation of Mountain Fly Honeysuckle (Lonicera villosa) by Overhead Mist and Subirrigation

HortScience ◽  
2019 ◽  
Vol 54 (5) ◽  
pp. 916-919
Author(s):  
Darren J. Hayes ◽  
Bryan J. Peterson
Keyword(s):  
Root Formation ◽  
Dry Weight ◽  
Adventitious Root Formation ◽  
Organic Soils ◽  
Stem Cuttings ◽  
System Quality ◽  
Root Tips ◽  
Root Volume ◽  
Root Dry Weight ◽  
Propagation Medium

We assessed adventitious root formation on stem cuttings of mountain fly honeysuckle [Lonicera villosa (Michx.) Schult.] in separate experiments using overhead mist and subirrigation systems. The concentration of applied potassium salt of indole-3-butyric acid (K-IBA) and the proportions of coarse perlite and milled peatmoss in the propagation medium were varied within both systems. Across treatments, 98% of cuttings in the overhead mist system and 85% of cuttings in the subirrigation system produced roots. In the overhead mist system, root volume, root dry weight, and number of root tips were greatest among cuttings treated with 4000 to 12,000 mg·L−1 K-IBA and stuck into 100% perlite. In the subirrigation system, root dry weight was not significantly affected by K-IBA concentration, but the greatest root volume and number of root tips were produced by cuttings treated with 8000 or 12,000 mg·L−1 K-IBA and stuck into 100% perlite. Despite the natural affinity of mountain fly honeysuckle for moist, organic soils, all of the 18 rooted cuttings we planted in a landscape trial survived and grew appreciably with minimal care over 2 years in a mineral field soil. We conclude that cuttings of mountain fly honeysuckle can be propagated readily by overhead mist or subirrigation, that root system quality is improved substantially by increasing K-IBA concentration and using coarse perlite without peatmoss, and that mountain fly honeysuckle can be grown in typical horticultural landscapes.

scholarly journals Rooting of Elaeocarpus yoga, an Ornamental Tree Indigenous to Guam

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 787B-787
Author(s):  
Jean-Marc G. Guedon* ◽  
James McConnell
Keyword(s):  
Butyric Acid ◽  
Stem Cuttings ◽  
Acid Form ◽  
Root Number ◽  
Mariana Islands ◽  
Salt Form ◽  
Ornamental Tree ◽  
Napthaleneacetic Acid ◽  
Salt Forms

Elaeocarpus yoga Merr. (Tiliaceae) is an attractive tree indigenous to the Mariana Islands and Palau. Recently its population has declined due to deforestation, typhoon damage, and pest problems. Stem cuttings of E. yoga were taken from hardwood, semihardwood, or softwood and treated with acid or salt forms of indole-3-butyric acid (IBA) or napthaleneacetic acid (NAA) at several concentrations. The cuttings were treated with on of the following: acid form at 0.5 mL·L-1 IBA + 0.25 mL·L-1 NAA; 1 mL·L-1 IBA + 0.5 mL·L-1 NAA, 2 mL·L-1 IBA + 1 mL·L-1 NAA; salt form at 1, 3, and 8 g·kg-1 IBA/. Rooting after 8 weeks was compared among treatments. The salt form of the IBA treatment at 3 g·kg-1 produced the greatest rooting percentage, root number and length. The acid form containing both IBA and NAA produced the smallest average rooting percentage.

scholarly journals Effect of Cutting Size and Basal Heat on Rooting of Micromeria fruticulosa Stem Cuttings

2017 ◽  
Vol 45 (2) ◽  
pp. 353-357
Author(s):  
Leo SABATINO ◽  
Fabio D'ANNA ◽  
Giovanni IAPICHINO
Keyword(s):  
Adventitious Roots ◽  
Root Formation ◽  
Adventitious Root Formation ◽  
Wild Plants ◽  
Stem Cuttings ◽  
Native Plant ◽  
Factors Influencing ◽  
Shade Cloth ◽  
Propagation Methods ◽  
Rooting Response

Micromeria fruticulosa (Bertol.) Grande is a small pulviniform shrub, belonging to the Labiates, and characterized by twisted stems and pink-purple flowers. Endemic to Campania and Sicily (Italy), M. fruticulosa grows from sea level to 600 m altitude. This specie might be considered an excellent native plant for landscape purposes in Mediterranean areas because of its long flowering period, extending from November to June, and its tolerance to heat and drought. The exploitation of wild plants for ornamental purposes implies knowledge on the factors influencing the propagation methods. Root development of stem cuttings of M. fruticulosa was investigated in relation to basal heat and cutting size. Softwood terminal cuttings of a clone grown in Sicily were trimmed to two sizes: short (3 cm) or long (6 cm) length. Propagation was performed in unheated greenhouse covered with clear polyethylene and external 70% shade-cloth. To verify the rooting response to basal heat, half of the cuttings were placed on a basal heated bench (22 ± 2 °C constant temperature) while the remaining were placed on an unheated bench. Acclimatized rooted cuttings were thereafter transplanted into each plastic pot (diameter 16 cm). Plants were thereafter transplanted in the open field and were evaluated for their ornamental value. Basal heat promoted earlier rooting and positively affected adventitious root formation. Six cm long cuttings exposed to basal heat exhibited the best development in terms of number and length of adventitious roots. Flowering plants derived from 6 cm long cuttings exposed to basal heat showed the highest number of flowering branches and flowers per plant.

scholarly journals Genetic Variability in the Propagation of Eucalyptus sideroxylon by Stem Cuttings

1987 ◽  
Vol 5 (1) ◽  
pp. 31-32
Author(s):  
D.W. Burger ◽  
C.I. Lee
Keyword(s):  
Genetic Variability ◽  
Adventitious Roots ◽  
Root Formation ◽  
Adventitious Root Formation ◽  
Stem Cuttings ◽  
Mature Trees ◽  
The One ◽  
Eucalyptus Sideroxylon ◽  
Rooting Response ◽  
Over Time

Stem cuttings from mature trees and coppice regrowth of three red ironbark eucalyptus (Eucalyptus sideroxylon A. Cunn. ex Woolls) genotypes were used to study the rooting response over time. Mature tissues failed to root, but coppice regrowth from the same trees showed a range in rooting response from 0 to nearly 100 percent. The two genotypes that formed adventitious roots maintained this ability for the duration of the study. The one genotype that exhibited the greatest potential for adventitious root formation formed a greater number of roots per cutting and had a greater mean root length.

scholarly journals Medium Temperature Influences the Rooting Response of Hibiscus rosa-sinensis L.

1989 ◽  
Vol 7 (4) ◽  
pp. 143-146
Author(s):  
William J. Carpenter
Keyword(s):  
Root Formation ◽  
Adventitious Rooting ◽  
Stem Cuttings ◽  
Medium Temperature ◽  
Hibiscus Rosa Sinensis ◽  
Best Response ◽  
Propagation Medium ◽  
Rooting Response

Abstract Adventitious rooting of stem cuttings of Hibiscus rosa-sinensis L. ‘Pink Versicolor’, ‘Brilliant Red’, ‘Jim Hendry’ and ‘Silver Anniversary’ was evaluated after propagation at medium temperatures of 18°, 22°, 26°, 30° and 34°C (65°,72°,79°,86° and 93°F). Cuttings of all cultivars propagated at medium temperatures of 26° and 30°C rooted faster and developed more roots with larger fresh and dry weights. Rooting percentages for each cultivar was similar among all propagation medium temperatures, but 26° and 30°C (79° and 86°F) reduced the weeks required for rooting 50% of the cuttings and periods in weeks between 10% and 90% rooting. The most vigorous rooting ‘Pink Versicolor’ had more uniform root emergence and the best response at unfavorable medium temperatures, while the poorest ‘Silver Anniversary’ had inconsistent root formation at all temperatures.

scholarly journals Gene expression profiling during adventitious root formation in carnation stem cuttings

BMC Genomics ◽  
2015 ◽  
Vol 16 (1) ◽  
Author(s):  
Carlos Villacorta-Martín ◽  
Ana Belén Sánchez-García ◽  
Joan Villanova ◽  
Antonio Cano ◽  
Miranda van de Rhee ◽  
...  
Keyword(s):  
Gene Expression ◽  
Gene Expression Profiling ◽  
Expression Profiling ◽  
Adventitious Root ◽  
Root Formation ◽  
Adventitious Root Formation ◽  
Stem Cuttings

scholarly journals Mist Level Influences Vapor Pressure Deficit and Gas Exchange During Rooting of Juvenile Stem Cuttings of Loblolly Pine

HortScience ◽  
2005 ◽  
Vol 40 (5) ◽  
pp. 1448-1456 ◽  
Author(s):  
Anthony V. LeBude ◽  
Barry Goldfarb ◽  
Frank A. Blazich ◽  
John Frampton ◽  
Farrell C. Wise
Keyword(s):  
Vapor Pressure ◽  
Pinus Taeda ◽  
Loblolly Pine ◽  
Vapor Pressure Deficit ◽  
Root Formation ◽  
Net Photosynthesis ◽  
Adventitious Rooting ◽  
Adventitious Root Formation ◽  
Stem Cuttings ◽  
Ambient Conditions

Two experiments were conducted during which juvenile hardwood or softwood stem cuttings of loblolly pine (Pinus taeda L.) were rooted under six mist regimes in a polyethylene-covered greenhouse to investigate the effect of mist level on vapor pressure deficit (VPD) and cutting water potential (Ψcut), and to determine the relationships between these variables and rooting percentage. In addition, net photosynthesis at ambient conditions (Aambient) and stomatal conductance (gs) were measured in stem cuttings during adventitious root formation to determine their relationship to rooting percentage. Hardwood stem cuttings rooted ≥80% when mean daily VPD between 1000 and 1800 hr ranged from 0.60 to 0.85 kPa. Although rooting percentage was related to Ψcut, and Aambient was related to Ψcut, rooting percentage of softwood stem cuttings was not related to Aambient of stem cuttings. Using VPD as a control mechanism for mist application during adventitious rooting of stem cuttings of loblolly pine might increase rooting percentages across a variety of rooting environments.

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