Involvement of Polyamines with Adventitious Root Development in Stem Cuttings of Mung Bean

The influences of indole-3-butyric acid (IBA) concentrations of 0–30 mg·g−1 on the success and speed of adventitious root development of Zamia furfuracea L.f. and Zamia integrifolia L.f. stem cuttings were determined. Root formation success for both species was greater than 95%. The IBA concentrations did not influence the speed of root development for Z. furfuracea, but the Z. integrifolia cuttings that received IBA concentration of 3 mg·g−1 generated adventitious roots more slowly than the cuttings in the control group. The ending dry weights of the stems, leaves, and roots were not influenced by IBA concentration for either species. Our results indicated that adventitious root formation on stem cuttings of these two Zamia species is successful without horticultural application of IBA. Additional IBA studies are needed on the other 300+ cycad species, especially those that are in a threatened category.

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Leaf Retention on Stem Cuttings of Two Zamia L. Species With or Without Anti-transpirants Does Not Improve Adventitious Root Formation

Tropical Conservation Science ◽

10.1177/1940082920966901 ◽

2020 ◽

Vol 13 ◽

pp. 194008292096690

Author(s):

Benjamin E. Deloso ◽

Charles J. Paulino ◽

Thomas E. Marler

Keyword(s):

Root Development ◽

Adventitious Root ◽

Root Formation ◽

Adventitious Root Formation ◽

Stem Cuttings ◽

Threatened Plants ◽

Adventitious Root Development ◽

Wild Harvesting ◽

Leaf Retention ◽

Experimental Treatments

Improved horticultural practices may help to reduce demand for wild cycads threatened by unsustainable collection. We determined the influences of leaf retention with or without anti-transpirants on the success and speed of adventitious root development of Zamia furfuracea L.f. and Zamia integrifolia L.f. stem cuttings. Root formation success for both species was greater than 95%. The experimental treatments did not influence the percentage success or the speed of root development for Z. furfuracea or Z. integrifolia. The ending dry weights of the stems, leaves, and roots were also not influenced by the experimental treatments. Our results indicated that adventitious root formation on stem cuttings of these two Zamia species was highly successful with or without retained leaves, and horticultural application of transpiration-reducing products on retained leaves did not improve success. Our findings add to the growing body of evidence that show how the horticulture nursery industry can meet horticultural demands in an effort to stop wild harvesting of threatened plants. Conservation of cycads as a group would benefit from more horticulture studies such as this, especially if the research includes threatened species.

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Adventitious Root Development in Ornamental Plants: Insights from Carnation Stem Cuttings

Soil Biology - Root Engineering ◽

10.1007/978-3-642-54276-3_20 ◽

2014 ◽

pp. 423-441 ◽

Cited By ~ 1

Author(s):

Antonio Cano ◽

José Manuel Pérez-Pérez ◽

Manuel Acosta

Keyword(s):

Root Development ◽

Adventitious Root ◽

Ornamental Plants ◽

Stem Cuttings ◽

Adventitious Root Development

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Influence of phenyl tryptophyl ether on adventitious root development in bean cuttings

Canadian Journal of Botany ◽

10.1139/b83-166 ◽

1983 ◽

Vol 61 (5) ◽

pp. 1548-1549 ◽

Cited By ~ 1

Author(s):

Bruce E. Haissig

Keyword(s):

Acetic Acid ◽

Phaseolus Vulgaris ◽

Root Development ◽

Adventitious Root ◽

Adventitious Root Development ◽

Indole 3 Acetic Acid

Rooting trials with bean (Phaseolus vulgaris cv. Top Crop L.) tested the effects of phenyl tryptophyl ether (PTRE) in comparison with tryptophol (TR, indole-3-ethanol), indole-3-acetic acid (IAA), and no treatment. PTRE was synthesized from tryptophol and phenol. Results indicated that IAA treatment enhanced primordium development significantly more than any other treatment that was tested. Effects of TR and PTRE treatment on primordium development were about equal. Results suggested that PTRE is not an auxin or is only a weak auxin in comparison with IAA.

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