Four substances were the subject of industrial developments, which allowed the emergence
of new generations of products implied in the plant nutrition, physiology and health :
> GLYCINE BETAINE
> ISOPENTENYL ADENINE (Extract IPA)
> INDOLES (N Pro)
> AMINOPURINES (Physio+)
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Aminopurines (Physio+)
The aminopurines-calcium association (European patent N° 98401411.8) is used in calcareous
enrichment and phosphopotassic (PK) fertilizers. This association is based on the discovery in
1985, by an American laboratory, that the calcium is involved in the mediation of many plant
growth processes. Those processes are initiated by specific signals. Today, the farmer is aware
of this notion of "signal". He knows, for instance, that cold is responsible and essential for the
ear emergence induction of the winter wheat or the running to seed of beets. As for the
horticulturist, he can act on the thermic or photoperiodic (day/night) signals to control the
flowering of tulip or chrysanthemum. Some organic substances, such as the aminopurines act
such as "chemical signal" in the same manner than other signals (thermic, photoperiodic, …)
on the working and the development of the crops.
So the aminopurines act such as "signal" molecule and the calcium such as a messenger.
The aminopurines-calcium association is particularly decisive to assure a better management
of the PK fertilization and a better regularity of the yields.
What about the fertilization, the aminopurines create a strong stimulation of the root system,
that is to say that the capacity of phosphate and potassium absorption increases. Those two
elements (phosphate and potassium) are not very mobile in the soil and so hardly accessible
to the plant. As for the regularity of the yields : on the one hand, the aminopurines-calcium
association, which is a determining element of the yield, favours the germination and also a
good implantation of the crops (dormancy break of the seeds, development of the roots…),
and on the other hand, this association reduces the yield variability, which is due to the
environmental factors. For instance, the tillering, the floral induction, the number of ears or the
seed growth allow the plant to adapt itself to its environment.
When these parameters are optimal, the plants are stronger and more fertile, expressing their
whole agronomic potentiality.