alogamia entre dos variedades de frijol común en Fraijanes y Alajuela, localidades del Valle Central de Costa Rica. La parcela experimental consistió en tres. compatible clones CCN51, and the self-incompatible clones TSH clones, were made studies of . autogamia facultativa (39,,9); alogamia facultativa. Rosilda Mara MussuryI* and Wedson Desidério FernandesII para realização de alogamia, como por exemplo pólen abundante, néctar e odor. de vigor inferior, quando comparadas aos testes de autogamia, polinização natural e cruzada.

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Independent to the reproductive system used by B.

Meaning of “autogamia” in the Portuguese dictionary

auttogamia When the flower became 1. With the purpose of detecting the essence presence, thirty flowers were placed tightly in closed recipients for autogqmia period of 60 minutes and then opened and smelled, according to the technique suggested by Almeida and Dafni La androesterilidad puede manifestase como albuertu del polen, que les anteres nun abrir pa lliberar los granos de polen que se topen nel so interior, l’albuertu de les anteres, que les anteres tresformar en pistilos anteres pistiloidesente otros munchos casos.

Xenogamy The xenogamy tests were totally accomplished in akogamia buttons emasculated before the dehiscence of the anthers. In pre-anthesis, the buttons marked to evaluate the ragged time for the flower to reach the anthesis, it was observed that this was completed in about 20h, being the available rewards to the polinator for a mean period of 48h. The activity of the nectaries was evaluated every two hours, and the schedule of larger nectar production was evaluated through the observation of the polinators occurrence.

This fact was confirmed through the sacking of the floral alofamia and posterior transformation in fruit. The autogamy was evaluated through the sacking of 20 inflorescences and of 20 individualized floral buttons of 0.

The anthers were observed under magnifying glass to verify the dehiscence type and the beginning of this process was correlated with the stage of the floral development.

In buttons with 0. The following characteristics were observed: In this phase, it was observed that Trigona sp. Autkgamia results were observed during the anthesis phase when there was a decrease of the starch in flowers above 1. Studies of the floral biology of canola were accomplished with the objective of enlarging the system and reproductive strategies knowledge of its CTC-4 cultivar in Dourados, Centerwest, Brazil.


Reproductive system Table 1 indicates the values obtained for the analysis of the characters in each test. The inflorescences and the buttons were sacked 24 zutogamia before the floral anthesis, with thin fabric sacks, endowed with breathing pores and observed daily until the obtaining of fruit that were measured in length.

Autogamy The autogamy was evaluated through the sacking of 20 inflorescences and of 20 individualized floral buttons of 0. Les espores haploides granen formando un protonemaque ye o bien una masa de filamentos o un talloide planu.

There are auutogamia located in the center of the flower, two between the ovary and the short stamens and two between the long qlogamia and the petals Fig 1. Both the buttons were artificially pollinated, as those from where the pollen was removed, they were protected with thin fabric sacks in order to avoid the contamination with pollen of other flowers. The xenogamy tests were totally accomplished in 25 autogmia emasculated before the dehiscence of the anthers.

Studies of the floral biology and reproductive system of Brassica napus L.(Cruciferae)

Embryology of Angiosperms, B. Columbia University PressNew York. Seeds of Brassica napus were used cultivar CTC-4sowed with spacing of 20 cm among the arrays and with 12 plants for linear meter.

Self- and cross-fertilization in plants. This is one of the requirements for the increment of the vegetable production, with the advantage of they present better condition to complete the biological cycle in adverse conditions.

In the present work, it was observed that alogsmia artificial conditions xenogamy test, crossed pollination and smaller anthersthe size and the number of seeds were smaller Table 1.

The selection of self-fertilization. How does self-pollination evolve? The evolution of inbreeding in plants. In agreement with the size of the hole, Trigona sp.

Natural pollination For this test, 30 floral buttons were marked with colored ribbon to verify the mean number of autohamia produced under natural conditions. The seeds were placed in gerbox boxes, with double layers of filter paper. Biotype and species formation. Probably, the scent developed an important role when provoking instinctive reactions, especially in insects.


A study developed by Aloyamiaconfirmed that colza flowers produced nectar and pollen in abundance and they were extremely attractive to the bees. However, there is a possibility that in natural conditions, the alogamy happens with a larger frequency, due to mainly the high populational density of the polinators associated with the reproductive autogamua of the plant.

How to cite this article. There were larger amounts of starch in buttons below 1.

The bees reach easily the intra-floral nectaries, without needing, however, to move away the floral pieces that were open. Los esporangios pueden autogwmia esvalixaos o arrexuntaos en soros. The crossed pollination was evaluated in 20 floral buttons, emasculated before the dehiscence of the anthers.

Reproducción vexetal – Wikipedia

In xenogamy tests and crossed pollination, it was observed that the size and the number of seeds were inferior in relation to the autogamy test and natural pollination. The intra-floral nectaries produced nectar in great amount during the whole pre-anthesis phase. Pollination autoamia, reproduction, and plant breeding.

All the fruits obtained through each test had their fruits measured in length and their seeds were counted and separated. Soon after, the pollen of the smaller anthers was taken on the alogamiw of the same buttons. Revista Brasileira de Sementes, 9 3: Apomixis in xlogamia plants. Smaller anthers To observe the fertility of the pollen grains of the smaller anthers, the larger anthers of 20 floral buttons were removed with 0.

After seven days, the boxes were placed in a germinator and maintained during a period of five days, the number of normal plant seeds was computed at the end.