REPRODUCTIVE-BIOLOGY, VARIABILITY OF NECTAR FEATURES AND POLLINATION OF COMBRETUM-FRUTICOSUM (COMBRETACEAE) IN ARGENTINA

被引：34

作者：

BERNARDELLO, L

GALETTO, L

RODRIGUEZ, IG

机构：

[1] Institute Multidisciplinario de Biologia Vegetal, Cordoba, 5000

来源：

BOTANICAL JOURNAL OF THE LINNEAN SOCIETY | 1994年 / 114卷 / 03期

关键词：

BREEDING SYSTEM; NECTAR REMOVAL; NECTAR SECRETION PATTERN; NECTARY STRUCTURE; STANDING CROP;

D O I：

10.1111/j.1095-8339.1994.tb01938.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 [植物学];

摘要：

Flower morphology, nectary structure, nectar features (chemical composition, secretion pattern, standing crop, removal effects) and flower visitors are analysed in an Argentinian population ofCombretum fruticosum. The variability of these data was examined throughout the flower lifetime. Nectar is hexose dominant. Its chemical composition and concentration are constant for all flowering stageS. Nectar volume varies as a function of flower age due to a combination of nectar secretion, cessation and resorption periods. The overall sugar production is decreased by nectar removal. The plant is self‐incompatible and xenogamouS. Only 16.2% of the flowers set seedS. Inflorescences with green flowers were exclusively visited by two hummingbird and three perching bird species which transfer the pollen. A clear link was observed among nectar production pattern, standing crop of nectar, and visitors' behaviour. Copyright © 1994, Wiley Blackwell. All rights reserved

引用

页码：293 / 308

页数：16

共 39 条

[1]

ARIZMENDI M, 1990, BIOTROPICA, V22, P171

[2]

Baker H. G., 1975, Coevolution of animals and plants. Symposium 5 of the 1st International Congress of Systematic and Evolutionary Biology, Boulder, Colorado, USA. (Editors L. E. Gilbert and P. H. Raven)., P100

[3]

BAKER HG, 1983, BIOL NECTARIES, P127

[4]

BAKER HG, 1975, BIOTROPICA, V7, P137

[5]

MATING SYSTEMS, GENETIC DIFFERENTIATION AND SPECIATION IN TROPICAL RAIN-FOREST PLANTS [J].