Effect of (pyrrolidine-2,2-diyl)bisphosphonic acid on Raphanus sativus and Trifolium repens : first observations

(1)

HAL Id: hal-02464024

https://hal.archives-ouvertes.fr/hal-02464024

Submitted on 2 Feb 2020

HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci- entific research documents, whether they are pub- lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers.

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

Effect of (pyrrolidine-2,2-diyl)bisphosphonic acid on Raphanus sativus and Trifolium repens : first

observations

Pierre Anciaux, Robin Colot, Gilles Olive

To cite this version:

Pierre Anciaux, Robin Colot, Gilles Olive. Effect of (pyrrolidine-2,2-diyl)bisphosphonic acid on Raphanus sativus and Trifolium repens : first observations. 25th National Symposium on Applied Biological Sciences, Jan 2020, Gembloux, Belgium. p 71 (116), 2020, NSABS 2020 25th National Symposium for Applied Biological Sciences. �hal-02464024�

(2)

Effect of (pyrrolidine-2,2-diyl)bisphosphonic acid on

Raphanus sativus and Trifolium repens : first observations

Pierre ANCIAUX

¹

, Robin COLOT

^1,2

, Gilles OLIVE

¹

1Ecole Industrielle et Commercial de la ville de Namur (EICVN) - LC2A, ²it4ip-ion track technology

Linear biphosphonic acid have already been reported to have herbicidal properties. The purpose of these preliminary tests was to verify the effect on radish and clover ^plants of the (pyrrolidine-2,2-diyl)bisphosphonic (1) acid, having a nitrogenic cycle.

In conclusion it seems that spraying the product over the leaves and watering the soil with tap water have more effect, than just applying the product in the soil.

(1) seems to have a fertilizing effect on Raphanus sativus but a herbicidal one on Trifolium repens.

This is a picture of another Trefolium repens specimens one day after watering with (1). On the right it can observed a dead stem and on the left a dying one. On the bottom specimen we can observe ripples on the leaves.

Here is a picture of a Trefolium repens pot where the specimens have only been watered with tap water. Most of pots present 5 specimens.

0 1 2 3 4 5 6 7 8 9

0 5 10 15 20

Stem Length (cm)

Time (days)

Raphanus sativus plants stem growth (cm) through days

Control 1 Control 2 Control 3 Control 4 Watered 1 Watered 2 Watered 3 Watered 4 Sprayed-on 1 Sprayed-on 2 Sprayed-on 3

0 2 4 6 8 10 12

0 5 10 15 20

Foliar rgowth (cm)

Time (days)

Raphanus sativus plants foliar growth (cm) through days

Control 1 Control 2 Control 3 Control 4 Watered 1 Watered 2 Watered 3 Watered 4 Sprayed-on 1 Sprayed-on 2 Sprayed-on 3

Effect of (pyrrolidine-2,2-diyl)bisphosphonic acid on Raphanus sativus and Trifolium repens : first observations

Effect of (pyrrolidine-2,2-diyl)bisphosphonic acid on

Raphanus sativus and Trifolium repens : first observations

Pierre ANCIAUX

, Robin COLOT

, Gilles OLIVE

Linear biphosphonic acid have already been reported to have herbicidal properties. The purpose of these preliminary tests was to verify the effect on radish and clover ^plants of the (pyrrolidine-2,2-diyl)bisphosphonic (1) acid, having a nitrogenic cycle.

In conclusion it seems that spraying the product over the leaves and watering the soil with tap water have more effect, than just applying the product in the soil.

(1) seems to have a fertilizing effect on Raphanus sativus but a herbicidal one on Trifolium repens.

This is a picture of another Trefolium repens specimens one day after watering with (1). On the right it can observed a dead stem and on the left a dying one. On the bottom specimen we can observe ripples on the leaves.

Here is a picture of a Trefolium repens pot where the specimens have only been watered with tap water. Most of pots present 5 specimens.

Raphanus sativus plants stem growth (cm) through days

Raphanus sativus plants foliar growth (cm) through days

On the other hand,

Raphanus sativus showed

different results. Overall

the growth of stems and

the average foliar surface

were higher for sprayed

specimens.

Effect of (pyrrolidine-2,2-diyl)bisphosphonic acid on Raphanus sativus and Trifolium repens : first observations

Effect of (pyrrolidine-2,2-diyl)bisphosphonic acid on

Raphanus sativus and Trifolium repens : first observations

Pierre ANCIAUX

, Robin COLOT

, Gilles OLIVE

Linear biphosphonic acid have already been reported to have herbicidal properties. The purpose of these preliminary tests was to verify the effect on radish and clover plants of the (pyrrolidine-2,2-diyl)bisphosphonic (1) acid, having a nitrogenic cycle.

In conclusion it seems that spraying the product over the leaves and watering the soil with tap water have more effect, than just applying the product in the soil.

(1) seems to have a fertilizing effect on Raphanus sativus but a herbicidal one on Trifolium repens.

This is a picture of another Trefolium repens specimens one day after watering with (1). On the right it can observed a dead stem and on the left a dying one. On the bottom specimen we can observe ripples on the leaves.

Here is a picture of a Trefolium repens pot where the specimens have only been watered with tap water. Most of pots present 5 specimens.

Raphanus sativus plants stem growth (cm) through days

Raphanus sativus plants foliar growth (cm) through days

On the other hand,

Raphanus sativus showed

different results. Overall

the growth of stems and

the average foliar surface

were higher for sprayed

specimens.

Linear biphosphonic acid have already been reported to have herbicidal properties. The purpose of these preliminary tests was to verify the effect on radish and clover ^plants of the (pyrrolidine-2,2-diyl)bisphosphonic (1) acid, having a nitrogenic cycle.