GO-Grow – Includes biostimulants and seaweed-based products.
The GO-Grow product range consists of speciality growth stimulants dedicated for physiological activity on plants during the whole vegetation period. Most of the products from our GO-Grow range are biostimulants.
The term biostimulant means each and every substance or microorganism, applied to the plant, seeds or to the rhizosphere with the aim of stimulating the plant’s natural processes to improve the effective use of nutrients and plant growth.
The main source of GO-Grow biostimulants comes from organic matter extracted or excavated from the natural resources found at special and unique places in the world.
Organic matter in general, and physiologically active extracts of it, are capable of restoring the typicality of compromised soil systems and increasing the possibility of self-sufficiency of the plant-soil systems.
The main groups of active and natural substances having biostimulant effects are:
- Amino acids
- Humic and fulvic acids
- Seaweed (algae) extracts
Proteins are made up of long chains of amino-acids. In nature amino-acids are present in two forms: LEFT-HANDED (L-amino-acids) and RIGHT-HANDED (D-amino-acids). Exactly specular, they differ in the position of the amino group linked to the central carbon. During hydrolysis of the matrix proteins, the peptide bonds are broken and free amino-acids, peptides and polypeptides are formed. Depending on the type of process adopted, products are obtained which have very different chemical characteristics regarding the content of free amino-acids, molecular weight and above all the percentage of L-amino-acids and D-amino-acids present.
In the composition of natural proteins, the total number of amino-acids present are L-amino-acids. For this reason, in the plant’s metabolic processes (protein synthesis) only L-amino-acids are involved since, for D-amino-acids to be used, they must be degraded and transformed into L-amino-acids with energy expenditure.
LEFT-HANDED AMINO-ACIDS ARE PRINCIPLE AGENTS OF PROTEIN SYNTHESIS.
Organic N and the essential amino-acids are used directly for protein synthesis. The cell, directly absorbing organic nitrogen and L-amino-acids, saves metabolic energy which will be used in other nutritional processes. It has a direct influence on the stimulation of proliferation and cell expansion. The majority of essential amino-acids involved in the synthesis of phytohormones are complexing agents and carriers of trace elements.
Humic and Fulvic Acids
They originate from the decomposition of plant residues: they are polymers (polyphenoles extracted from the lignin and from the hemicellulose). Polymerisation produces different molecular weights and agronomic properties. The most polymerised are not very mobile and have molecules with few active radicals. The less polymerised ones contain carboxylic groups which allow nutrients to be fixed through ionic bonds. Humic and Fulvic acids are not very soluble in inert, organic matter.
The quality of Humic and Fulvic acids depends on various factors:
- Origin of the raw material (Peat, Leonardite, industrial residue etc.)
- Treatment for the activation
- Selection of active fractions
- Ratio of Humic acids and Fulvic acids
Seaweed (algae) extracts
Algae is a plant organism which lives in the sea. Algae which is always submersed does not suffer any particular kind of stress. Whereas algae which grows on the borderline between high and low tide is subjected to very strong kinds of environmental stress: every day it is either submersed or exposed to the open air. To survive and proliferate in this environment algae must put in place highly efficient defence mechanisms against stress.
The category physioactivators contains all those products that stimulate specific and particular metabolic pathways of the plant. Physioactivators can split into specific products, useable only on one species or on a reduced number of species, or on non-specific ones which influence activities common to the bulk of cultured species.
Non-specific physioactivators Increase of the activity of protein synthesis, stimulation of the cytokine activities with a resulting increase in cell number, coloration etc. Algae and its by-products are the main source of physioactivators.
Biostimulant activity of seaweed (algae) extracts on plants:
- Increases plant strength, root development, chlorophyll synthesis
- Favour early flowering, fruit setting and uniformity of size
- Delays senescence, increases preservability
- Increases tolerance to stress, drought, salinity and frost
- Mitigates the effects of diseases (fungus and bacteria)
- Assists in the control of insects and nematodes
- Assists in the mixture of agrochemicals
Source: Seaweed extract stimuli in plant science and agriculture James S. Craigie – 2011
The biostimulant activity of algae is not determined by the content of phytohormones, but by the stimulation of endogenous production of phytohormones in the treated plants. For this reason, algae cannot be considered an agrochemical, but rather classified as a biostimulant.