Potential Use of Ascophyllum nodosum as a Biostimulant for Improving the Growth Performance of Vigna aconitifolia (Jacq.) Marechal

Abstract

The fertilizers that are derived from seaweed are known as Seaweed Liquid Fertilizers (SLF). SLF is a modern, cheap, non-toxic, and natural bioactive fertilizer. Among different studied seaweeds, Ascophyllum nodosum is significant as having bioactive ingredients that potentially regulate the molecular, physiological, and biochemical processes of crop plants. In the present study, the effects of the application of different concentrations (0.00%, 0.01%, 0.02%, 0.05%, 0.10%, 0.50%, and 1.00%) of A. nodosum Extract (ANE) to the Vigna aconitifolia through roots (Pot Root Application, PRA) and on the leaves (Pot Foliar Application, PFA) were monitored via the plant growth. The lower concentrations of ANE in both the PRA and PFA experiments showed positive growth on V. aconitifolia. The 0.10% ANE stimulated the maximum shoot growth when applied through the roots, while 0.05% ANE in both PFA and PRA experiments led to an increase in the number of pods, nodules, organic content, and moisture percentage. The 0.10% ANE also increased the leaf numbers, leaf area, and photosynthetic pigments. Hence, the application of 0.05% and 0.10% of A. nodosum extract in two ways (i.e., Pot Foliar Application, PFA, and Pot Root Application, PRA) ameliorated the growth capabilities of V. aconitifolia.

Ascophyllum nodosum Extract and Mycorrhizal Colonization Synergistically Trigger Immune Responses in Pea Plants against Rhizoctonia Root Rot, and Enhance Plant Growth and Productivity

“…One of the most interesting results reported in this study is the growth-promoting effect of the seaweed extract. This result is in agreement with the findings of Verma et al [ 51 ], who reported the growth-stimulating effect of A. nodosum extract on Vigna aconitifolia plants, when applied as spray or root drench at 0.1%. The application of A. nodosum extract has repeatedly demonstrated their enhancing effect on the vegetative growth and yield of different plant species via various mechanisms [ 39 ].…”

Improvement of rooting and growth in kiwifruit (Actinidia deliciosa) cuttings with organic biostimulants

“…Similar results have been reported with Gracilaria edulis sap in potato [ 59 ], in hybrid maize [ 60 ], in foxtail millet [ 61 ], with Ascophyllum nodosum in maize [ 62 ], in Vigna aconitifolia (Jacq.) Marechal [ 63 ] and in winter wheat [ 64 ] and many more.…”