Nauclea diderrichii: rooting of stem cuttings, clonal variation in shoot dominance, and branch plagiotropism

Success of rooting from stem cuttings of 14 Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco) clones increased significantly from 42% in 1974 to 67% in 1981. The increase was slightly more than 3% each year despite ortet age increasing from 10 and 13 years in 1974 to 17 and 20 years in 1981. The greatest increase occurred from the 3rd through the 6th year of annual rooting trials. Yearly pruning of ortets and rooted ramets of the same clones is thought to have reinvigorated shoots from the pruned crowns of trees. Several annual prunings seemed to be required before average rooting potential increased markedly. No translocation of the reinvigoration stimulus from the pruned to the adjacent unpruned areas of the same trees was detected. Rooting of cuttings from ortets from pruned areas was at least 9% more than cuttings from unpruned areas. No additional invigoration from serial propagation of cuttings was noted for rooting potential, but such cuttings grew a little taller and slightly less plagiotropic 1 year after rooting than were ramets propagated from pruned ortets. Significant clonal variation was found with all treatments. Evidence of a change in physiological vigor of the ortets and rooted ramets was externally visible in the formation of abundant lammas shoots on pruned areas of the 17- and 20-year-old ortets and rooted ramets. Abundant lammas growth is normally found only on Douglas-fir trees less than 10 years old.

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Effect of different substrates on rooting and shoot development of juvenile stem cuttings of Nauclea diderrichii (De Wild & T. Durand) Merrill

International Journal of Biological and Chemical Sciences ◽

10.4314/ijbcs.v3i5.51090 ◽

2010 ◽

Vol 3 (5) ◽

Author(s):

R Caspa ◽

L Kuoudiekong ◽

B Nwegueh ◽

S Njeudeng ◽

J Lahjou ◽

...

Keyword(s):

Shoot Development ◽

Stem Cuttings ◽

Nauclea Diderrichii

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Preliminary survey of clonal variation in rooting of Allanblackia floribunda leafy stem cuttings

Canadian Journal of Forest Research ◽

10.1139/x07-151 ◽

2008 ◽

Vol 38 (1) ◽

pp. 10-15 ◽

Cited By ~ 13

Author(s):

A. R. Atangana ◽

D. P. Khasa

Keyword(s):

Clonal Variation ◽

Experimental Unit ◽

Physiological Status ◽

Stem Cuttings ◽

Preliminary Survey ◽

Rooting Ability ◽

Cutting Length

Clonal and cutting stem morphology variations in rooting ability were simultaneously examined in Allanblackia floribunda Oliv. using leafy stem cuttings in two experiments. The hypothesis tested is that clonal variation in rooting percentage is due to variation in cutting morphology. Each of the four replicate blocks used per experiment consisted of 18 treatments from two crossed factors, diameter or length × clone, making a total of n = 216 cuttings (3 cutting lengths (3, 4, and 5 cm) or diameters (2, 3, and 4 mm) × 6 stumps (clones) × 12 cuttings, as each experimental unit consisted of 12 cuttings). The cuttings were used for rooting in nonmist propagators. No clone × cutting diameter and clone × cutting length interactions (P = 0.293 and 0.513, respectively) on rooting percentage were found at the end of the study. Highly significant and significant clonal variations in rooting percentage were noted throughout the experiments. Results from this study reject the hypothesis being tested. Finally, further work should be done on the effects of physiological status of the cuttings and clonal variation in this species.

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Magnitude and Sources of Intra-clonal Variation in `Foster' Holly

Journal of the American Society for Horticultural Science ◽

10.21273/jashs.119.3.589 ◽

1994 ◽

Vol 119 (3) ◽

pp. 589-595

Author(s):

Cecil T. Pounders ◽

G. Sam Foster

Keyword(s):

Statistical Model ◽

Clonal Variation ◽

Stem Cuttings ◽

Age Group ◽

Sampling Position

A statistical model was used to partition the effects of age group, cutting position within the plant crown, and ramet environment on propagule development from stem cuttings collected from random stock plants of Ilex ×attenuata Ashe `Foster #2' (`Foster' holly). Most of the intra-clonal variation observed originated from sources not partitioned by the model. Small differences in growth were associated with sampling position within the crown. Repropagation gave no indication that factors measured by the model could be passed from ramet to propagule. Within-clone variation was not reduced by repropagation or by hedging propagules to force new growth.

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Vegetative Propagation of Aspen: Clonal Variation in Suckering from Root Cuttings and in Rooting of Sucker Cuttings

Canadian Journal of Forest Research ◽

10.1139/x74-084 ◽

1974 ◽

Vol 4 (4) ◽

pp. 565-567 ◽

Cited By ~ 7

Author(s):

George A. Schier

Keyword(s):

Vegetative Propagation ◽

Clonal Variation ◽

Stem Cuttings ◽

Trembling Aspen ◽

Rooting Capacity ◽

Root Suckers

Large clonal differences in sucker production from root cuttings and in rooting of greenwood stem cuttings taken from root suckers were found among nine Wyoming trembling aspen (Populustremuloides Michx.) clones. There appeared to be no correlation between the suckering and rooting capacity of a clone. Formation of callus at the cut ends of sucker cuttings hindered rooting.

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THE SOURCES OF AUXIN HORMONE TO GROWTH OF SHOOT PINEAPPLE STEM CUTTING (Ananascomosus.L. Merr.)

Journal of Academic Research and Sciences (JARES) ◽

10.30957/jares.v1i1.41 ◽

2016 ◽

Vol 1 (1) ◽

pp. 45-52

Author(s):

Palupi Puspitorini

Keyword(s):

Water Concentration ◽

Urine Concentration ◽

Experimental Results ◽

Stem Cuttings ◽

Randomized Design ◽

Natural Hormone ◽

Cow Urine ◽

Urine Concentrations ◽

Completely Randomized Design ◽

Better Than

The aim of this study was to select the best sources of auxin of which it can stimulate the growth of shoots Pineapple plant cuttings. This research is compiled in a completely randomized design (CRD) with 4 treatments and 6 replications. The Data were statistically Analyzed by the DMRT. Level of treatment given proves that no treatment 0%, cow urine concentration of 25%, young coconut water concentration of 25% and Rootone F 100 mg / cuttings. The results showed that cow urine concentrations of 25% and Rootone F 100 mg give the best results in stimulating the growth of shoots pineapple stem cuttings. Experimental results concluded that the effect of this natural hormone were better than the shoots without given hormone.

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Vegetative Propagation of Woody Ornamentals Through Forcing of Epicormic Shoots

HortScience ◽

10.21273/hortsci.33.3.503c ◽

1998 ◽

Vol 33 (3) ◽

pp. 503c-503

Author(s):

Paul H. Henry ◽

John E. Preece

Keyword(s):

Plant Material ◽

Woody Plant ◽

Clonal Plant ◽

Light Regime ◽

Moisture Regime ◽

Stem Cuttings ◽

Shrub Species ◽

Woody Ornamentals ◽

Ornamental Tree ◽

Environmental Light

A propagation method is being developed that allows softwood shoots to be generated from stem sections of dormant woody plant species. These shoots, forced in the greenhouse during the winter, are subsequently collected and processed as softwood stem cuttings to produce clonal plant material. Many species in the nursery industry can only be propagated using softwood cuttings, and this technique allows propagation of these species to be initiated several months earlier than what is typically possible. Current studies involve expanded screening of ornamental tree and shrub species to determine if commercial production using this technique is feasible. Results demonstrate that many species may be propagated using this method, but that some species are more prolific than others with respect to number of softwood shoots produced. Additional studies are currently in progress to determine the environmental (light regime, moisture regime) and cultural (type of media) conditions that are optimal when producing clonal plant material via this technique.

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