levando a planta à alogamia. Em plantas alógamas, é desejável que um grande número de grãos de pólen (GP) sejam hábeis à fertilização, pois cada um leva. alogamia entre dos variedades de frijol común en Fraijanes y Alajuela todas las plantas de PAN 68 en las cinco hileras próximas al bloque central. ALOGAMIA.- Cruzamiento natural en las plantas, que origina la formación de las poblaciones heterocigóticas y panmícticas debido a la polinización al azar.

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The extent to which plants depend on pollinators for outcross pollen transportation is a key issue in plant reproductive ecology.

Self-incompatibility in plants

Both types of analyses were performed using the Statistica software package v. Ninguna de las especies produjo frutos en las pruebas de agamospermia indicando, por lo tanto, que ellas requieren de la presencia de polen en los estigmas para producir frutos. A androesterilidade pode manifestarse das seguintes maneiras: Certainly, further studies concerning the reproductive strategies in orchids of southern South America are of great importance.


Bt gene flow of transgenic cotton. The Natural History of Pollination. To determine the putative breeding system of G. Only the breeding system of G. Academia Mexicana de Ciencias. Molecular genetics of self-compatibility in flowering plants.

Population improvement in alfalfa: We thank Javier A. Biodiversity and Conservation Reproductive biology aspects of two pantas of the genus Gavilea Orchidaceae, Chloraeinae plsntas populations from Central Chile. Diversity and evolutionary biology of tropical flowers Cambridge tropical biology series. Utilization of hybrid vigor. Annales Botanici Fennici Techniques for Pollination Biologists.

Reconsideration of pollen dispersal data from field trials of transgenic potatoes. A clarifcation of pollen discounting and its joint effects within inbreeding depression on mating system evolution.

In fact, none of these orchids produced fruits by the agamospermy tests, therefore indicating that both species require the presence of pollen on the stigmas for fruit setting Fig. Current Opinion in Plant Biologyv. To test whether these orchids are capable of fruit setting with pollen of the same individual carried by pollinators i. Characterization and breakdown of self-incompatibility plahtas field bindweed Convolvulus arvensis L.

Reprodución das plantas

Canadian Journal of Plant Sciencev. Reproductive een and inforescence size of Calopogon tuberosus Orchidaceae. Interaction between the loci in relation to pseudo-compatibility in Festuca pratensis Huds. Disomic control of self-incompatibility in the tetraploid Ranunculus repens Ranunculaceae.


Soybean gene flow in the Western Region of Paraná

Evolution above the Species Level. Inforescence size and fruit distribution among individuals of three orchid species.

Controlling self-incompatibility by CO 2 aligamia treatment in Brassica campestris: Auto-pollination in the Orchidaceae. University of Chicago Press. Nevertheless, when pollination is limited by the availability of mates or pollinators, as seemingly occurs in both orchids herein assessed, self-fertilization may evolve even in the presence of high inbreeding depression, as long as the selfed ovules would not otherwise have been outcrossed, i.

The Plant Cell, v. Theoretical and Applied Geneticsv. Furthermore, while the increase in fruiting success signifcantly correlated with an increase in foral display in G.