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- W1492599410 abstract "L'étude de la morphologie du pollen de Dacryodes edulis a montré qu'il est: isopolaire, tricolporé, longiaxe et possède une exine épaisse qui le prédispose à une conservation à long terme. La germination in vitro est optimale sur le milieu de Brewbaker et Kwack additionné de 15 ou 20% de saccharose à pH 5,3. L'incubation se faisant à l'obscurité et à 30°C, la germination est rapide, près de 60% des pollens germent après une heure d'incubation, mais un temps supérieur à trois heures est nécessaire pour avoir une germination optimale et une élongation maximale du tube pollinique. Le pouvoir germinatif est de 8% après 24 mois de stockage à—20°C. A study of the morphology of pollen of Dacryodes edulis has shown that it is: isopolar, tricolporate, prolate. The structural characteristics of the exine show the possibility for long‐term pollen storage. In vitro germination is optimal on Brewbaker & Kwack medium containing 15 or 20% sucrose at pH 5,3. Incubation is carried out at 30°C in the dark. Germination is very fast; 60% of the pollen grains germinated after one hour of incubation but three hours are necessary for optimal germination and pollen tube elongation. After 24 months of storage at—20°C, the mean percentage of germination is 8%." @default.
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- W1492599410 date "1998-01-01" @default.
- W1492599410 modified "2023-09-27" @default.
- W1492599410 title "Morphologie et germinationin vitrodu pollen deDacryodes edulis(Burseraceae)" @default.
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- W1492599410 doi "https://doi.org/10.1080/00173139809362648" @default.
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