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Semences et génétique des plantes |
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esta página en español this page in english
ITAB: Produire des semences en agriculture biologique Connaître les principes techniques de base - En plus de la compétition
que peuvent exercer les adventices vis-à-vis de l’eau, des nutriments
…, les mauvaises herbes sont particulièrement préjudiciables en
cultures semencières. En effet, certaines graines d’adventices ont les
mêmes caractéristiques (taille, densité) que la graine multipliée.
Elles sont intriables ou entraînent des déchets supplémentaires, voire
le refus du lot. Exemples : les graines de la sétaire verte et de
l’helmintie sont intriables dans des lots de semences de carotte ; le
rumex est intriable dans certaines fourragères comme la luzerne ; des
graminées sauvages comme le vulpin des champs et la folle avoine sont
difficiles à trier dans le ray-grass.
IFOAM Training Manual for Seed Saving - provides detailed
information on the various steps involved in seed saving and
multiplication/ multiplication techniques
for specific crops.
IFOAM GMO-Free Regions Manual: Case Studies from Around the World
-There is no doubt about the incompatibility of genetically modified
organisms (GMOs) with organic agriculture. This manual builds on
existing expertise by making worldwide experiences publicly available.
The manual also provides comprehensive reports from different legal
settings, as well as samples of letters and links to useful websites.
Mkulima kuhifadhi mbegu -Basic Kiswahili booklet introducing vegetable seed saving aimed at the tropics and sub-tropics.
Farmer Seed Saving -Basic English booklet introducing vegetable seed saving aimed at the tropics and sub-tropics.
Organic, non-treated and non GMO seed and planting material
-The objective of this study is to obtain a qualified answer to the
repeated requests from certifiers regarding the availability of organic
seeds and seedlings and, in case non-organic seeds/seedlings are used,
whether they are untreated ones and non-GMO as well. Furthermore, it is
documented in such a way that it can be both a guide to the exporters
and Project Leaders, and also a communiqué to certification bodies and
import authorities to justify how activities are carried out in EPOPA
projects. Ultimately, it is hoped that this report will be of use to
authorities in importer countries when they measure the equivalency of
organic products exported from Africa. The standard-setters in the
region can also benefit from having an accurate description of the
state of the art, in order to set realistic standards. Finally, it will
assist organic projects to progress towards an increasing use of
organic seeds and planting materials.
IFOAM met régulièrement à jour l'information contenue sur ce site Web.
N'hésitez pas à nous poser des questions ou à nous envoyer vos
commentaires: Coordinateur de la Plate Forme IFOAM
Revisiter: Plateforme de Formation d'IFOAM
Revisiter: Page Manuels de Formation
Revisiter: Page Growing Organic
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