Effect of plant age and auxin treatment on rooting response in stem cuttings of Prosopis cineraria

1994 ◽  
Vol 27 (1) ◽  
pp. 99-103 ◽  
Author(s):  
S. Arya ◽  
R. Tomar ◽  
O.P. Toky
2003 ◽  
Vol 21 (3) ◽  
pp. 126-130
Author(s):  
James S. Owen ◽  
William A. Johnson ◽  
Brian K. Maynard

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.


HortScience ◽  
2001 ◽  
Vol 36 (5) ◽  
pp. 976-978 ◽  
Author(s):  
Mohammed M. Al-Salem ◽  
Nabila S. Karam

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).


2012 ◽  
Vol 22 (6) ◽  
pp. 771-773 ◽  
Author(s):  
Eugene K. Blythe ◽  
Jeff L. Sibley

Heller’s japanese holly [Ilex crenata ‘Helleri’ (synonym: Ilex crenata f. helleri)] is a popular landscape plant in U.S. Department of Agriculture hardiness zones 5b to 8a because of its dwarf habit, slow growth rate, and dark green leaves. Plants can be propagated readily by stem cuttings and use of an auxin treatment is generally recommended to promote rooting. This study was conducted to determine if auxin treatment could be eliminated, thus reducing labor and chemical requirements in the cutting propagation process. In three experiments, terminal stem cuttings of Heller’s japanese holly were taken in winter, prepared both with and without use of a basal quick-dip in an auxin solution [2500 ppm indole-3-butyric acid (IBA) + 1250 ppm 1-naphthaleneacetic acid (NAA)], and rooted in a warm, high-humidity environment. Both nontreated cuttings and cuttings receiving a 1-second basal quick-dip in the auxin solution rooted at, or near, 100%. However, treatment of cuttings with auxin resulted in larger root systems on the rooted cuttings, which could allow earlier transplanting into larger nursery containers. No inhibition of new spring growth was exhibited by cuttings treated with auxin in comparison with nontreated cuttings.


HortScience ◽  
1990 ◽  
Vol 25 (11) ◽  
pp. 1441-1442
Author(s):  
Michael Marcotrigiano ◽  
Susan P. McGlew

A teaching exercise that rapidly and inexpensively demonstrates the effects of leaf reduction on the rooting of stem cuttings is described. Coleus stem cuttings with whole leaves, half leaves, or no leaves are placed in sand on either misted or nonmisted greenhouse benches. Rooting response is recorded by ranking root systems by comparison to a diagram. A demonstration is also described that uses leafless cuttings cultured in vitro on solidified media containing a carbohydrate and/or auxin source. This demonstration gives students information that will help them speculate on the physiological reasons for the poor rooting response of leafless herbaceous cuttings.


HortScience ◽  
1997 ◽  
Vol 32 (7) ◽  
pp. 1274-1275 ◽  
Author(s):  
Paul H. Henry ◽  
John E. Preece

Vegetative shoots were forced in the greenhouse from excised stem (branch) sections of dormant Japanese maple (Acer palmatum Thunb.), red maple (Acer rubrum L.), and sugar maple (Acer saccharum Marsh.). Softwood shoots generated in this way were used as stem cuttings in a subsequent adventitious rooting study. Data indicate that maple shoots can be forced using this technique, but that both the percentage of stem sections forming shoots and the number of shoots produced are highly variable among both species and clones. Whereas Japanese and red maple formed shoots on >50% of stem sections, shoots were generated on only 20% of sugar maple stem sections. Significant variability was also observed in rooting response, with red maple shoots rooting at much higher percentages (60%) than either Japanese maple (26%) or sugar maple (15%).


2012 ◽  
Vol 30 (2) ◽  
pp. 55-57 ◽  
Author(s):  
Christopher R. Lambert ◽  
Frank A. Blazich ◽  
Anthony V. LeBude

Semi-hardwood or hardwood stem cuttings of Ilex vomitoria Sol. ex Ait. ‘Dare County’ [‘Dare County’ yaupon holly (syn. ‘Virginia Dare’ yaupon holly)] were treated with solutions of the potassium (K) salt (K-salt) of indolebutyric acid (K-IBA) at 0 to 8000 mg liter−1 (ppm). Nontreated semi-hardwood cuttings rooted at 78% whereas, regardless of auxin treatment, hardwood cuttings taken on two dates rooted at 15%. Treatment of cuttings with K-IBA was generally ineffective and resulted in a linear decrease (P ≤ 0.05) in percent rooting of semi-hardwood cuttings.


HortScience ◽  
1991 ◽  
Vol 26 (4) ◽  
pp. 391-392 ◽  
Author(s):  
Sven E. Svenson

Rooting and growth of Verbena cuttings (Verbena × hybrids Voss) were measured to determine response to foliar-applied benzylaminopurine (BA). There was no rooting response to BA application when visible nodal roots were present at the base of the cutting. There was no response to 30, 100, or 300 mg BA/liter applied to the foliage 48 or 96 hours after excision from the stock plant. Rooting-zone dry mass, total cutting dry mass, and number of roots were increased by 30 mg BA/liter applied immediately after excision when there were no visible nodal roots at the base of the cuttings. Foliar application of BA at 10 or 30 mg·liter-1 increased lateral bud elongation of subsequently rooted shoots by 20% and 49%, respectively. Application of BA during cutting propagation to enhance subsequent lateral bud elongation does not appear to inhibit rooting in Verbena stem cuttings. Chemical name used: 6-benzylaminopurine (BA).


HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 504a-504 ◽  
Author(s):  
Jason J. Griffin ◽  
Frank A. Blazich ◽  
Thomas G. Ranney

Stem cuttings of Thuja L. × `Green Giant', consisting of 22-cm terminals or 20-cm laterals, were collected on three dates associated with specific growth stages (softwood, semi-hardwood, and hardwood), and treated with indolebutyric acid (IBA) in 50% isopropanol ranging from 0 to 9000 ppm and placed under intermittent mist. Regardless of cutting type or auxin treatment, cuttings rooted in high percentages at each growth stage. Overall rooting was highest for hardwood cuttings (96%) followed by semi-hardwood (86%), and softwood (85%) cuttings. Semi-hardwood cuttings were the only cuttings in which rooting was affected by IBA or cutting type with the greatest rooting (94%) attained using lateral cuttings treated with 6000 or 9000 ppm IBA. Although an interaction occurred between IBA treatment and cutting type for mean root length of hardwood cuttings, only mean root length of semi-hardwood cuttings was influenced by IBA concentration alone with the greatest length (25 mm) achieved with 6000 ppm IBA. An interaction was noted for root count between cutting type and IBA concentrations for softwood cuttings, whereas IBA and cutting type affected independently root count on semi-hardwood cuttings. Treatment with 9000 ppm IBA resulted in 18 roots per rooted cutting whereas lateral cuttings responded with a mean of 16 roots over all IBA concentrations. Root count on hardwood cuttings was affected by IBA treatment only, with 9000 ppm being optimum (14 roots per rooted cutting).


1972 ◽  
Vol 2 (2) ◽  
pp. 121-134 ◽  
Author(s):  
J. C. Heaman ◽  
J. N. Owens

Changes taking place at the base of stem cuttings of Douglas-fir during callus formation and root initiation are described. Material was taken from nine sources, including trees of different ages and with different histories of rooting response. Gross morphology and anatomy of the cutting bases are described using serial longitudinal sections of samples taken on a weekly basis over a 4-month period. The basal callus proliferated from the lowest cells of the vascular cambium and a complex pattern of differentiating vascular tissues arose within the callus mass. The root primordia arose in this callus in association with the differentiating phloem and wound cambium. Variation in callus formation and root initiation is described both within and between clones.


1998 ◽  
Vol 78 (4) ◽  
pp. 519-526 ◽  
Author(s):  
Calvin Chong ◽  
Bob Hamersma ◽  
Kevin L. Bellamy

Scarcity of landfills has resulted in increasing need for alternative disposal or reuse of industrial organic wastes such as paper mill sludge (biosolids). The objective of this study was to evaluate and compare the rooting response of stem cuttings from six species of deciduous landscape shrubs [coralberry (Symphoricarpos × chenaultii Rehd. 'Hancock'); flowering almond (Prunus triloba Lindl. 'Multiplex'); honeysuckle (Lonicera × xylosteoides Tausch. 'Clavey's Dwarf'); mock orange (Philadelphus × virginalis Rehd. 'Minnesota Snowflake'); purple-leaf sandcherry (Prunus × cistena N. E. Hansen); and viburnum (Viburnum dentatum L.)] under mist and 50% shade (outdoor lath) in flats filled with 100% perlite medium, or perlite mixed with 15, 30, 45 or 60% of fresh paper mill biosolids, by volume, of one of four sources (Atlantic, Domtar, Thorold, and QUNO). There was little or no adverse effect of the biosolids, despite wide variability in rooting response due to species, source and/or level of biosolids. Regression analyses indicated that, with few exceptions, the percent rooting, mean root number per rooted cutting, and length of longest root per cutting increased linearly or curvilinearly, or was unaffected, when regressed over level of biosolids. Optimum amounts of biosolids in the rooting medium ranged from 30 to 60% by volume. The electrical conductivities of the biosolids-amended media were acceptable (0.1–0.3 dS m−1) for rooting of woody cuttings and pore space characteristics were comparable to, or exceeded those of, perlite. Key words: Ornamentals, landscape plants, propagation, organic waste, paper mill sludge, waste recycling


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