Abstract
In negatively photoblastic seeds of Cucumis anguria L. the scarification of micropyle overcame the inhibitory effect of “white light ”, although far-red radiation inhibited the germination in both intact and scarified seeds. The moistened testa powder transmitted more far-red than red radiation. Thus the testa could act as a filter of radiation and maintain a high far-red/red ratio at the photosensitive site of the embryo, which must be localized near the micropyle.
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Cardoso, V.J.M., Felippe, G.M. The action of the testa upon the germination of seeds ofCucumis anguria L.. Biol Plant 30, 48–52 (1988). https://doi.org/10.1007/BF02876423
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DOI: https://doi.org/10.1007/BF02876423