Response of Fraser's Photinia Stem Cuttings to Selected Rooting Compounds

Abstract

Selected compounds applied to terminal, semi-hardwood cuttings of Fraser's photinia (Photinia x fraseri Dress) promoted rooting. Concentrated indole-3-butyric acid (IBA) solutions were more effective in promoting rooting than either commercially prepared talc or liquid formulations.

Different Responses to Adventitious Rhizogenesis under Indole-3-Butyric Acid and Seaweed Extracts in Ornamental’s Cuttings: First Results in Photinia x fraseri ‘Red Robin’

“…In our study, the application of IBA (R1) improved the rooting percentage at 240 DAC (Table 2) and the number of cuttings with six roots (Table 3), as compared to the untreated control and seaweed extracts. In our experimental conditions, the application of IBA at the concentration of 1 gL −1 produced 33% of rooted cuttings, while Bonaminio and Blazich, [49] in 1983, found that 5000 and 10,000 mg L −1 of IBA solutions applied to the terminal, semi-hardwood cuttings of Fraser's photinia, promoted rooting more effectively than the control, and increased rooting percentage significantly (100 and 93%). Cutting success, entailing quality AR formation with high rooting percentage, depends on numerous factors, such as cutting type, environmental conditions, nutritional levels of the stock plant, rooting medium and phytohormone application [17,71,72].…”

“…For example, refs. [57,58], have achieved the best results with 0.8%, while Bonamino and Blazich [49] have applied IBA at 1%. Kelpak ® (identified as K), is composed of 34% (w/w) E. maxima extract 11.16 mg L −1 auxin and 0.031 mg L −1 cytokinin (with a auxin:cytokinin ratio of 360:1), alginates (1.5 L −1 ), amino acids (total 441.3 mg 100 g −1 ), mannitol (2261 mg L −1 ), neutral sugars (1.08 g L −1 ), and small amounts of macroelements (N 0.09%, P 90.7 mg kg −1 , K 7163.3 mg kg −1 , Ca 190.4 mg kg −1 , Mg 337.2 mg kg −1 , Na 1623.7 mg kg −1 ) and microelements (mean composition: Mn 17.3 mg kg −1 , Fe 40.7 mg kg −1 , Cu 13.5 mg kg −1 , Zn 17.0 mg kg −1 , B 33.0 mg kg −1 ) [43,59].…”

“…Used by landscape designers as a low maintenance hedge or screen that provides spring interest, it attracts pollinating insects with its nectar and the larvae of some species of Lepidoptera feed on its leaves. However, despite its important role in floriculture, this species is considered difficult to propagate [48]; although high concentrations of phytohormones are used to optimize rhizogenesis [49], limiting its commercial use [47]. P. x Fraseri 'Red Robin' differs from the species in that the young shoots are a particularly strong red color and it is particularly robust.…”

Evaluation of substrate composition and exogenous hormone application on vegetative propagule rooting success of essential oil hemp (Cannabis sativaL.)

“…Quick-dip solutions have several advantages including application uniformity, reduced cost at large cutting throughput, broad auxin final concentration, and uniform rooting results. Nevertheless, powders are easy to apply, do not require dilutions to achieve desired auxin concentrations, are easy to store, and evidence of application is easily visible [14,17, 37-39]. Cannabis is an easily rooted plant which benefits from the application of auxin.…”

Growth Performances of Photinia × fraseri Dress. Seedlings from Cuttings of Five Ortets in Different Districts

“…This plant has two types of leaves, green (mature leaves) and red (young leaves). Its perennial foliage is very striking during sprouting due to the new brightred leaves among the dark green older ones (Bonaminio & Blazich, 1983). Çetiner and Zencirkıran (2020) stated that the taxon is prominent in terms of leaf, flower and fruit characteristics.…”