Propagation Techniques for Iberis Semperflorens L.

Iapichino, Giovanni; Bertolino, Massimo

doi:10.17660/actahortic.2009.813.55

Acta Hortic.

2009

DOI: 10.17660/actahortic.2009.813.55

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Propagation Techniques for Iberis Semperflorens L.

Giovanni Iapichino¹,

Massimo Bertolino²

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“…Numerous studies have evaluated effects of PDLI (Currey et al, 2012;Enfield, 2002;Hutchinson et al, 2012;Lopez and Runkle, 2008), and, to a lesser extent, RZT (Iapichino and Bertolino, 2009;Wilkerson et al, 2005) on growth, morphology, and quality of vegetatively propagated annual bedding plants and herbaceous perennials during rhizogenesis of cuttings. Daily light integral during propagation influences photosynthesis, respiration, stomatal conductance, leaf, stem, and root mass ratios, leaf area ratio, specific leaf area, chlorophyll content, and carbohydrate status of cuttings (Currey and Lopez, 2015).…”

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Propagation Daily Light Integral and Root-Zone Temperature Influence Rooting of Single-internode Pennisetum ×advena Culm Cuttings

Owen¹,

López²

2018

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Crown division, tissue culture, and culm cuttings are methods for propagating purple fountain grass [Pennisetum ×advena Wipff and Veldkamp (formerly known as Pennisetum setaceum Forsk. Chiov. ‘Rubrum’)]. However, propagation by culm cuttings is becoming an economically attractive method for quick liner production. Our objective was to quantify the impact of propagation daily light integral (PDLI) and root-zone temperature (RZT) on root and culm development of single-internode purple fountain grass culm cuttings. Before insertion into the rooting substrate, cuttings were treated with a basal rooting hormone solution containing 1000 mg·L−1 indole-3-butyric acid (IBA) + 500 mg·L−1 1-naphthaleneacetic acid (NAA). The cuttings were placed in a glass-glazed greenhouse with an air temperature of 23 °C and benches with RZT set points of 21, 23, 25, or 27 °C. PDLIs of 4 and 10 mol·m−2·d−1 (Expt. 1) or 8 and 16 mol·m−2·d−1 (Expt. 2) were provided. After 28 d, culm and root densities (number) increased as the RZT increased from 21 to 27 °C, regardless of PDLI during Expt. 1. Compared with 4 mol·m−2·d−1, a PDLI of 10 mol·m−2·d−1 generally resulted in the greatest root biomass accumulation. For example, as PDLI increased from 4 to 10 mol·m−2·d−1, root dry mass increased by 105%, 152%, and 183% at RZTs of 21, 25, and 27 °C, respectively. In Expt. 2, as the RZT increased from 21 to 23 °C, root dry mass increased by 70% under a PDLI of 8 mol·m−2·d−1. However, root dry mass was similar among all RZTs under a PDLI of 16 mol·m−2·d−1. Our results indicate that single-internode culm cuttings of purple fountain grass can be most efficiently propagated under PDLIs of 8–10 mol·m−2·d−1 together with RZT set points of 23 to 25 °C for quick liner production.

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Propagation Daily Light Integral and Root-Zone Temperature Influence Rooting of Single-internode Pennisetum ×advena Culm Cuttings

Owen¹,

López²

2018

horts

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Basal heat improves adventitious root quality in Plumeria (Plumeria rubra L.) stem cuttings of different sizes

Iapichino

Airò²

2015

JAH

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Propagation Techniques for Iberis Semperflorens L.

Cited by 2 publications

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Propagation Daily Light Integral and Root-Zone Temperature Influence Rooting of Single-internode Pennisetum ×advena Culm Cuttings

Propagation Daily Light Integral and Root-Zone Temperature Influence Rooting of Single-internode Pennisetum ×advena Culm Cuttings

Basal heat improves adventitious root quality in Plumeria (Plumeria rubra L.) stem cuttings of different sizes

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