Structure and water absorption of different parts of the rose achene pericarp during imbibition Gudin S. author Arene Laurence author Chavagnat A. author Bullard Camille author text journal article 1991 Rose achene imbibition is difficult. Comparison of sulphuric acid treated, Cross and Beavanś 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. 10.1007/BF02885372 https://bp.ueb.cas.cz/artkey/bpl-199104-0002.php https://bp.ueb.cas.cz/artkey/bpl-199104-0002.php Biologia plantarum continuing 33 4 262 267 1991 periodical academic journal