ALOGAMIA Y AUTOGAMIA PDF

admin

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.

Author: Bam Taukora
Country: Panama
Language: English (Spanish)
Genre: Software
Published (Last): 4 June 2004
Pages: 114
PDF File Size: 11.76 Mb
ePub File Size: 17.44 Mb
ISBN: 562-5-43031-637-3
Downloads: 4789
Price: Free* [*Free Regsitration Required]
Uploader: Zolor

N’otres pallabres, la autogamia nestes especies coesiste cola alogamia nun equilibriu adaptativu. Seeds of Brassica napus were used cultivar CTC-4sowed with spacing of 20 cm among the arrays and with 12 plants for linear meter.

It was observed that B. The matured nectaries secreted nectar, beginning the first phase of the floral opening pre-anthesis.

Biology of the anthesis phase In the second autogamla, the flower reached the mean size with 1. Cambridge University Press, — L’intervalu de tiempu hasta que se produz la dehiscencia de les anteres dexa les fecundaciones con otres plantes de la mesma especie. With the objective of understanding the mechanism of canola reproduction, in order to obtain subsidies for its handling and appliance, its floral biology and aurogamia system were studied.

Por eso dizse qu’estos sacos embrionarios surden por un procesu de apomeiosis “ensin meiosis”. Pueden granar cuando hai mugor, inclusive n’ausencia de nutrientes. 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.

La autogamia ta bien espublizada ente les malecesles plantes pioneres y les especies insulares, que precisen que los individuos aisllaos fructifiquen y produzan granes. Smaller anthers To observe the fertility of the pollen grains of the smaller anthers, the larger anthers alogajia 20 floral buttons were removed with 0.

  DICCIONARIO ENCICLOPEDICO DE DERECHO USUAL GUILLERMO CABANELLAS PDF

Journal of Agricultural Science, 91, The flowers of B. La androesterilidad puede manifestase como albuertu del polen, que les alogmia 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.

This cutting was made in the place of nectar elimination and it enlarged progressively, resulting approximately in an alobamia opening, with a variable size.

TALLER #8 by Jesús Riascos on Prezi

In spite of these favorable characteristics for crop periods, few researches have been developed in Mato Grosso do Sul, although this species represents a great alternative for the State. The pollen was taken from the stigma by means of a dissection needle previously sterilized.

With the aid of a dissection needle, the pollen transfer was accomplished among the flowers which were sacked, and then observed daily until the obtaining of the fruit. This fact was confirmed through the sacking of the floral button and posterior transformation in fruit.

Meaning of “autogamia” in the Portuguese dictionary

In the present work, it was observed that in artificial conditions xenogamy test, crossed pollination and smaller anthersthe size and the number of seeds were smaller Table 1. William Collins Sons e Co.

The pollen placed on the stigma in the buttons with 0.

Self-Incompatibility in Flowering Plants. Gametophytic apomixis and evolution in plants. The following characteristics were observed: Esisten mecanismos que torguen o amenorguen la autogamia nes angiospermas, tales como la autoincompatibilidadla heterostiliala hercogamia y la dioecia. Revista Brasileira de Sementes, 9 3: Although Williamsobserved in a colza plantation, that the bees collected pollen and nectar, and that the pollen concentrations transported by the wind alogamiia larger in the hot, dry and sunny days than in cold, humid and cloudy days.

Apomixis in the angiosperms. This demonstrated that the reproductive strategies used by the species in study were important in the genetic increment of the species, favoring the occurrence of more adaptive characteristics.

Apidaethat tear the floral button in search of food.

  ANTHONY GIDDENS SOCJOLOGIA 2012 PDF

Reproducción vexetal

The ovary is a superior type, with parietal placentation, gamocarpelar and bicarpelar. Inferences from floral ecology and molecular genetic variation.

Evolution, Diversity, and Mechanisms. For the verification of lipid substances in the exina of the pollen grains and the presence of starch, the reagent Sudan III and Lugol were used, respectively Johansen, Crossed pollination The crossed pollination was evaluated in 20 floral buttons, emasculated before auutogamia dehiscence of the anthers. Self- and cross-fertilization in plants.

Services autogamja Demand Journal.

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

In the second phase, the aloamia reached the mean size with 1. With the purpose of detecting the essence presence, thirty flowers were placed tightly in closed recipients for a period of 60 minutes and then opened and smelled, according to the technique suggested by Almeida and Dafni 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.

Soon after, the flower was sacked again and observed until the formation of fruit. aloyamia

The test of the exsudation from the nectaries indicated the carbohydrates presence in the nectar, reducing sugar and fructose. In this phase, it was observed that Trigona sp.

The development of the fruit was daily accompanied. A nivel molecular esisten tres sistemes afechiscamente caracterizaos: Autogamy The autogamy was evaluated through the sacking of 20 inflorescences and of 20 individualized floral buttons of 0. A esti procesu llamar pseudogamia. Soon after, the pollen of the smaller anthers was taken on the stigma of the same buttons.

Subscribe US Now