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Titre :	Fruit-set and seed weight variation in Anthyllis vulneraria subsp. vulgaris (Fabaceae)
Type de document :	Tiré à part de revue
Auteurs :	Luis Navarro
Année de publication :	1996
Importance :	139-148
Langues :	Anglais (eng)
Catégories :	[CBNPMP-Thématique] Stratégie de production de semences (fécondité)
Mots-clés :	Anthyllis vulneraria L. ssp. vulgaris (Koch) Corb.
Résumé :	Fruit-set and seed weight variation was studied in a population ofAnthyllis vulneraria subsp.vulgaris (Fabaceae) in northwestern Spain. The plants produce several shoots, each bearing two to four inflorescences that open one at a time from bottom to top. Fruit-set, seed-pod weight and seed weight were found to be significantly higher in proximal inflorescences than in distal inflorescences of the same shoot; mean seed weight was up to three times higher in proximal than in distal inflorescences. By contrast, none of the three variables varied significantly among plants or among shoots of the same plant. Similarly, none of the three variables differed significantly between early- and late-flowering plants, or between plants monitored in 1993 and in 1994. These results are compatible with the view that shoots function as semiautonomous units as regards resource allocation, and that within the shoot resources are preferentially allocated to proximal (= early-opening) inflorescences. In the plants studied, the ratio of seed-pod weight to seed weight was fairly constant, suggesting that the pod is important for seed success.
Lien pérenne :	DOI : 10.1007/BF00989057
Permalink :	https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=130316

Fruit-set and seed weight variation in Anthyllis vulneraria subsp. vulgaris (Fabaceae) [Tiré à part de revue] / Luis Navarro . - 1996 . - 139-148.
Langues : Anglais (eng)

Catégories :	[CBNPMP-Thématique] Stratégie de production de semences (fécondité)
Mots-clés :	Anthyllis vulneraria L. ssp. vulgaris (Koch) Corb.
Résumé :	Fruit-set and seed weight variation was studied in a population ofAnthyllis vulneraria subsp.vulgaris (Fabaceae) in northwestern Spain. The plants produce several shoots, each bearing two to four inflorescences that open one at a time from bottom to top. Fruit-set, seed-pod weight and seed weight were found to be significantly higher in proximal inflorescences than in distal inflorescences of the same shoot; mean seed weight was up to three times higher in proximal than in distal inflorescences. By contrast, none of the three variables varied significantly among plants or among shoots of the same plant. Similarly, none of the three variables differed significantly between early- and late-flowering plants, or between plants monitored in 1993 and in 1994. These results are compatible with the view that shoots function as semiautonomous units as regards resource allocation, and that within the shoot resources are preferentially allocated to proximal (= early-opening) inflorescences. In the plants studied, the ratio of seed-pod weight to seed weight was fairly constant, suggesting that the pod is important for seed success.
Lien pérenne :	DOI : 10.1007/BF00989057
Permalink :	https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=130316