Influence of postseverance treatments on the rooting capacity of Fraser fir stem cuttings

Hinesley, L. Eric; Blazich, Frank A.

doi:10.1139/x81-043

Cited by 23 publications

(21 citation statements)

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“…Auxin effects. Treatment with an auxin is greatly beneficial when rooting cuttings of many species, including fraser fir Hinesley, 1994, 1995;Hinesley and Blazich, 1980, 1981. In the current study, application of auxin significantly increased rooting percentage, primary root production, total root length, and root symmetry.…”

Section: Discussionsupporting

confidence: 48%

Stumping Height, Crown Position, and Age of Parent Tree Influence Rooting of Stem Cuttings of Fraser Fir

Rosier¹,

Frampton²,

Goldfarb³

et al. 2005

HortSci

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Two experiments were conducted to develop a protocol for rooting stem cuttings from 3-, 5-, and 7-year-old fraser fir [Abies fraseri (Pursh) Poir.] Christmas trees. The first experiment tested the effect of stumping treatments and tree age on shoot production and subsequent adventitious rooting. One auxin concentration [4 mm indole-3-butyric acid (IBA)] and a nonauxin control were tested. Stock plants were stumped to the first whorl (trees in the field 3 and 5 years) or the first, third, and fifth whorls (trees in the field 7 years). Intact (nonstumped) controls were also included for each age. The second experiment was designed to create a quantitative description of the effects that crown (foliage and above ground branches of a tree) position have on the rooting of stem cuttings collected from stumped and nonstumped trees. The exact position was determined by measuring the distance from the stem, height from the ground, and the degrees from north. Crown positions were recorded as cuttings were collected and then cuttings were tested for rooting response. The rooting traits assessed in both experiments included rooting percentage, percent mortality, number of primary roots, total root length, root symmetry, and root angle. In the first experiment, rooting percentage, primary root production, and total root length increased as the age of the stock plant decreased and the severity of the stumping treatment increased. Auxin treatment significantly increased rooting percentage, root production, root lengths, and root symmetry while decreasing mortality. Overall, the highest rooting percentages (51%) and the greatest number of primary roots (8.1) occurred when 3-year-old stock plants were stumped to the first whorl and treated the cuttings with 4 mm IBA. The greatest total root lengths (335 mm) occurred in cuttings from the 3-year-old stock plants. In the second experiment, rooting percentage was significantly affected by the position from which the cuttings were collected. Cuttings collected lower in the crown and closer to the main stem rooted more frequently than cuttings collected from the outer and upper crown.

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Section: Discussionsupporting

confidence: 48%

Stumping Height, Crown Position, and Age of Parent Tree Influence Rooting of Stem Cuttings of Fraser Fir

Rosier¹,

Frampton²,

Goldfarb³

et al. 2005

HortSci

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“…Chin et al Brunes 1979), soaking (Peterson and Phipps 1976, Abou-Mandour and Hartung 1980. Work by Bicold-storage (Brix 1969, Hinesley and Blazich 1981, ran and Halevy (1973 suggested a synergistic effect of Phipps and Netzer 1981). Growth regulators, partieu-ABA combined with IBA on rooting of DaWw cuttings, larly auxin and its synthetic analogue, indolebutyric add Tree age is the single most important factor in the toss (Hare 1973) and ethylene-producing compounds such as of ability to vegetatively propagate trees (Bonga andDurzan 1982.…”

mentioning

confidence: 99%

The physiological role of abscisic acid in the rooting of poplar and aspen stump sprouts

Blake

Atkinson

1986

Physiologia Plantarum

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The better rooting performance of stump sprouts offers the means of mass‐producing rooted cuttings of many difficult‐to‐root genotypes. To study the physiological basis of rooting, stem cuttings were taken from stump sprouts of the more readily‐rooted hybrid poplar cultivar DN (P. deltoides × P. nigra) and the difficult‐to‐root aspen hybrid cultivar AE (P. alba × P. tremula). Seasonal variation in rooting percentage of both the AE and DN cultivars (higher in winter and lower in late summer and fall) of poplar was correlated with higher and lower levels of abscisic acid (ABA), respectively, in fractionated extracts of poplar. The presence of ABA in the purified inhibitory fraction was unequivocally confirmed by (i) co‐chromatography, (ii) gas chromatography‐electron capture detector and isomerization with UV light and (iii) combined negative chemical ionization‐mass spectrometry. Although ABA was identified in the inhibitory fractions of mung bean bioassays of both poplar and aspen extracts, exogenous ABA did not inhibit rooting when applied at physiological concentrations. Since ABA levels were higher in the more readily‐rooted hybrid poplar cultivar DN and were higher in February, close to the time of maximal rooting of cuttings, this suggests that ABA levels may possibly explain clonal and seasonal variation in rooting patterns of poplar stump sprouts. This interpretation is supported by the fact that lower, physiological concentrations increased rooting percentage, root number and root elongation when ABA was added to poplar and aspen cuttings.

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“…Early rooting research for Fraser fi r utilized hardwood cuttings collected from dormant stock plants. Hardwood cuttings rooted at the highest percentages following a 1-3 s dip of the basal 2 cm of the cuttings in 25 mM indole-3-butyric acid (IBA) (Hinesley and Blazich, 1980;1981). Although hardwood cuttings did root well, early budbreak of the cuttings is a problem, apparently producing resource allocation confl icts between their root systems and elongating shoots.…”

mentioning

confidence: 99%

“…Chilling semi-hardwood Fraser fi r cuttings for 4 to 8 weeks prior to being inserted into the rooting medium, in combination with wounding and auxin treatment, increased rooting percentages, as well as the number and length of primary roots (Hinesley and Blazich, 1981;Miller et al, 1982;Wise et al, 1985b). Overall, for cuttings collected in early October from 14year-old stock plants, the best rooting responses occurred for cuttings that were severed from the upper crown, chilled for 4 weeks, and treated with 22 mM IBA.…”

mentioning

confidence: 99%

“…Many factors have been shown to infl uence rooting of stem cuttings of Fraser fi r, including auxin concentration (Blazich and Hinesley, 1994;1995;Hinesley and Blazich, 1980;1981; and growth stage of the stock plants from which cuttings are taken (Wise et al, 1985a;1985b). These factors have proven to be important infl uences on the rooting success of many other woody species as well (Hartmann et al, 2002).…”

mentioning

confidence: 99%

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Growth Stage, Auxin Type, and Concentration Influence Rooting of Stem Cuttings of Fraser Fir

Rosier¹,

Frampton²,

Goldfarb³

et al. 2004

HortSci

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Seven concentrations of IBA and seven concentrations of NAA plus a nonauxin control were tested over three growth stages to determine their effectiveness in promoting adventitious root formation on stem cuttings taken from 3- and 4-year-old stock plants of Fraser fir [Abies fraseri (Pursh) Poir.]. Cuttings were prepared in March (hardwood), June (softwood), or November (semi-hardwood) 2001, treated with auxin concentrations ranging from 0 to 64 mm, and placed under mist. Rooting percentage, percent mortality, number of primary roots, total root length, root system symmetry, and root angle were recorded after 16 weeks. Growth stage and auxin concentration significantly affected every rooting trait except root angle. NAA significantly increased the number of primary roots and total root length. However, auxin type did not significantly affect rooting percentage or percent mortality. The highest rooting percentages (99%) occurred when softwood cuttings were treated with 5 mm auxin, however, semi-hardwood cuttings also rooted at high percentages (90%) and had no mortality when treated with 14 mm auxin. Regardless of auxin type, the number of primary roots and total root length varied in similar patterns across concentration, although, NAA tended to induce a greater response. To root Fraser fir stem cuttings collected from 3- and 4-year-old stock plants, it is recommended that a concentration of 5 mm NAA should be used on softwood cuttings and 14 mm IBA on semi-hardwood cuttings. Chemical names used: indole-3-butyric acid (IBA); 1-naphthaleneacetic acid (NAA).

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Influence of postseverance treatments on the rooting capacity of Fraser fir stem cuttings

Cited by 23 publications

References 0 publications

Stumping Height, Crown Position, and Age of Parent Tree Influence Rooting of Stem Cuttings of Fraser Fir

Stumping Height, Crown Position, and Age of Parent Tree Influence Rooting of Stem Cuttings of Fraser Fir

The physiological role of abscisic acid in the rooting of poplar and aspen stump sprouts

Growth Stage, Auxin Type, and Concentration Influence Rooting of Stem Cuttings of Fraser Fir

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