Autecological studies on Audouinia capitata I. Smoke

Autecological studies on Audouinia capitata (Bruniaceae). I. Plant-derived smoke as a seed germination cue
J.H.de Lange & C.Boucher 1990. S.AfrJ.Bot., 56
https://doi.org/10.1016/S0254-6299(16)31009-2

Seeds of Audouinia capitata, a threatened fynbos species, are known to germinate under natural conditions only after fires. Experimental results are presented which demonstrate that seed germination is initiated by chemical factor(s) found in smoke, derived from burning fynbos plant material.

Hannes's preamble:

Audouinia capitata (L.f.) Brongn. (Bruniaceae) is a threatened monotypic fynbos plant, categorized by Hall & Veldhuis (1985) as 'vulnerable'. It was decided to study the autecology of A. capitata because:
(i) young plants are rarely found in nature;
(ii) the plant has a decided horticultural potential;
(iii) to our knowledge nobody has succeeded in cultivating the plant;
(iv) the Bruniaceae is a family containing many threatened species and is endemic to the southwestern, southern and south-eastern Cape with the single exception of an outlier (Raspalia trigyna which occurs in southern Natal); &
(v) it could serve as a model to investigate the processes of rarification and extinction of plants in the western Cape.

Publicado el junio 16, 2022 07:17 TARDE por tonyrebelo