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. 2020 Nov 17;9(11):1590.
doi: 10.3390/plants9111590.

Comparison of Soaking Corms with Moringa Leaf Extract Alone or in Combination with Synthetic Plant Growth Regulators on the Growth, Physiology and Vase Life of Sword Lily

Faisal Zulfiqar  1 , Adnan Younis  1 , Patrick M Finnegan  2 , Antonio Ferrante  3
Affiliations

Comparison of Soaking Corms with Moringa Leaf Extract Alone or in Combination with Synthetic Plant Growth Regulators on the Growth, Physiology and Vase Life of Sword Lily

Faisal Zulfiqar et al. Plants (Basel). .

Abstract

Gladiolus is in demand worldwide as a cut-flower or landscaping plant, because of its superior commercial and ornamental value. Application of plant-based biostimulants has gained interest in the horticulture industry as an innovative and promising approach to ensure enhanced and sustainable yields along with better product quality. The influence of pre-plant corm soaks supplemented to 5% (v/v) with an aqueous extract from Moringa oleifera leaves (MLE) either alone or in combination with 50 mg/L salicylic acid (SA) or 50 mg/L gibberellic acid (GA) on the vegetative, physiological, and ornamental characteristics of potted gladiolus (Gladiolus grandiflorus) was investigated. In general, the treatment order for greatest horticultural value for all the parameters examined was: MLE + SA + GA > MLE + GA or SA individually > MLE alone > water-only control. Compared to other treatments, corms soaked in MLE + SA + GA had the earliest sprout time (3.7 days earlier than control), shortest production time (11 days earlier than control), tallest plant (159.5 cm), greatest number of leaves per plant (8.85 leaves), greatest maximum leaf area (66 cm2), highest SPAD reading (112) and photosynthetic activity (6.7 mmol m-2 s-1), longest spike length (91 cm), greatest number of florets per spike (20 florets), longest vase life (14.8 days), greatest N (1.53%), P (0.28%), and K (0.64%) concentrations, and largest corm diameter (4.68 cm) and mass (22.25 g). The highest total protein and proline concentrations were observed with the combined application of MLE + GA + SA. Our findings suggested that MLE either alone or in combination with other plant growth regulators not only increased the yield and quality of cut spikes, but also prolonged the vase life of cut gladiolus.

Keywords: cut flowers; gibberellic acid; gladiolus; photosynthetic activity; plant biostimulant; salicylic acid; sustainable agriculture; vase life.

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Conflict of interest statement

The authors declare no conflict of interest.

References

    1. Younis A., Akhtar M.S., Riaz A., Zulfiqar F., Qasim M., Farooq A., Tariq U., Ahsan M., Bhatti Z.M. Improved cut flower and corm production by exogenous moringa leaf extract application on gladiolus cultivars. Acta Sci. Pol. Hortorum Cultus. 2018;17:25–38. doi: 10.24326/asphc.2018.4.3. - DOI
    1. Hassan F., Fetouh M.I. Does moringa leaf extract have preservative effect improving the longevity and postharvest quality of gladiolus cut spikes? Sci. Hortic. 2019;250:287–293. doi: 10.1016/j.scienta.2019.02.059. - DOI
    1. Mollaei S., Farahmand H., Tavassolian I. The effects of 24-epibrassinolide corm priming and foliar spray on morphological, biochemical, and postharvest traits of sword lily. Hortic. Environ. Biotechnol. 2018;59:325–333. doi: 10.1007/s13580-018-0033-z. - DOI
    1. Bergmann B.A., Dole J.M., Fisher P., Njue G., McCall I. Gibberellic acid promotes flower stem elongation in ‘Renaissance Red’poinsettia. Can. J. Plant Sci. 2016;97:14–16.
    1. Ayyub C.M., Haidar M.W., Zulfiqar F., Abideen Z., Wright S.R. Potato tuber yield and quality in response to different nitrogen fertilizer application rates under two split doses in an irrigated sandy loam soil. J. Plant Nutr. 2019;42:1850–1860. doi: 10.1080/01904167.2019.1648669. - DOI