Potential Effect of Plant Growth Regulators in Two Seaweed Products

Title
Potential Effect of Plant Growth Regulators in Two Seaweed Products
Publication Date
2012
Author(s)
Yusuf, Ramal
Kristiansen, Paul
( author )
OrcID: https://orcid.org/0000-0003-2116-0663
Email: pkristi2@une.edu.au
UNE Id une-id:pkristi2
Warwick, Nigel W
( author )
OrcID: https://orcid.org/0000-0001-7009-3183
Email: nwarwick@une.edu.au
UNE Id une-id:nwarwick
Type of document
Journal Article
Language
en
Entity Type
Publication
Publisher
International Society for Horticultural Science
Place of publication
Belgium
UNE publication id
une:12735
Abstract
Seaweeds and seaweed products have been applied in vegetable production systems for many years. This is because seaweeds have beneficial effects in vegetable production systems. However, the mechanism by which seaweed can elicit the growth and development response is still not fully understood. Mineral nutrient concentrations are commonly too low to be effective, and plant growth regulators (PGR) have been suggested as a causal factor. PGR activity in two seaweed products (Maxicrop® and Seasol®) was investigated using field pea ('Pisum sativum' L.) bioassays. Treatments included a control, standard concentrations of the seaweed products, ashed seaweed products, auxin, cytokinin, gibberellin and mineral nutrients (matched to each seaweed product). The results obtained show that the seaweed products have potential plant growth regulator activity rather than a mineral nutrient effect alone. Ashing reduced the root growth effect of Seasol® but not Maxicrop®. Seasol® performed better than Maxicrop® based on the root and shoot length.
Link
Citation
Acta Horticulturae, v.958, p. 133-138
ISSN
0567-7572
Start page
133
End page
138

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