期刊名称：Science et changements planétaires / Sécheresse
印刷版ISSN：1147-7806
电子版ISSN：1777-5922
出版年度：2011
卷号：22
期号：1
页码：3-12
DOI：10.1684/sec.2011.0291
出版社：John Libbey Eurotext
摘要：Figures See all figures Authors Marjolein Visser , Pascal Ameloot , Mohamed Neffati , Azaiez Ouled Belgacem Université libre de Bruxelles École interfacultaire des bioingénieurs CP 169 50, avenue Franklin Roosevelt 1050 Bruxelles Belgique, Fazantenpartk 7 9800 Deinze Belgique, Institut des régions arides (IRA) Laboratoire d’écologie pastorale 4119 Médenine Tunisie Key words: Argyrolobium uniflorum, native seed production, seed polymorphism DOI : 10.1684/sec.2011.0291 Page(s) : 3-12 Published in: 2011 If native seed has to be multiplied in an ecologically sound way, some prior knowledge is necessary about the partitioning of infraspecific genetic variations within and between provenances. Argyrolobium uniflorum is cleistogamous and its seed is highly polymorphic. For this study, seeds of 7-13 tufts of 23 origins, grouped into six different regions, and of 100 neighbouring tufts of one extra site were harvested. The pigmentations of the seed coat and of the hilum were observed and the germination capacity was compared as a function of the colour of the seed coat. The analysis of the distribution of different combinations intra and inter provenances shows large genotypic diversity. The discovery that tufts could be composed of several interlaced genotypes is explained by the endozoochory of this legume. To respect the basic principles of native seed production when introducing Argyrolobium uniflorum in a degraded site, it could be enough to spread manure from small ruminants fed on fruiting Argyrolobium uniflorum collected in the vicinity.
