Title
Histologie de lembryogense prcoce au sein du genre Phaseolus L.: Etude histologique de l'embryogense prcoce chez Phaseolus L,Used
Delivery time: 8-12 business days (International)
La production du haricot commun (Phaseolus vulgaris L.) est limite par des contraintes biotiques et abiotiques. Son amlioration requiert l'exploitation de la biodiversit disponible. Lespce P. coccineus L. manifeste des rsistances aux maladies et ravageurs par rapport P. vulgaris. Des avortements massifs dembryons hybrides sont frquents entre 5 et 6 jours aprs la pollinisation (JAP) lorsque P. coccineus est pollinis par P. vulgaris. L'hybridation rciproque russit mieux, mais avec un retour rapide vers le parent maternel. Des coupes histologiques ralises en rsine HEMA sur des embryons parentaux et hybrides, gs de 3 14 JAP, ont permis de suivre la dynamique de l'embryogense pour identifier les causes d'avortement d'embryons et expliquer l'incompatibilit postzygotique entre P. coccineus (?) et P. vulgaris. Les signes d'avortement d'embryons hybrides concernent entre autres le retard de rsorption du nucelle, l'absence de cellules de transfert au voisinage de l'embryon, le retard de la division de l'albumen ou du dveloppement de l'embryon, l'hypertrophie du suspenseur, l'tranglement de la jonction entre le suspenseur et l'embryon et les dfauts cotyldonaires.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.