PT - JOURNAL ARTICLE AU - Gudin, S. AU - Arene, Laurence AU - Chavagnat, A. AU - Bullard, Camille TI - Structure and water absorption of different parts of the rose achene pericarp during imbibition DP - 1991 Jul 1 TA - Biologia plantarum PG - 262--267 VI - 33 IP - 4 AID - 10.1007/BF02885372 IS - AB - Rose achene imbibition is difficult. Comparison of sulphuric acid treated, Cross and BeavanÅ› reagent (C. B. reagent) treated seeds with untreated seeds showed that, during imbibition, water is essentially found in the most external pericarp layer. Inner layers appear less permeable. It is possible to distinguish three layers in the pericarp by taking into account results from imbibition assays, X-ray radiographies and scanning electron microscopic observations. They can be interpreted as representing the epi-, meso- and endocarp.