Re: Is there any species of Aroid which can have a difference phenology at the same species ?


Adhitia Pratama:

Species of Anthurium in cultivation tend to flower prolifically from a young age but with no fruit development in the early years. When the plants are larger, especially when they are not constrained by a container and have free root run to develop mass and take up more nutrients, fruit set occurs on most of the inflorescences. It is usually a heavy, fertile fruiting and not a weak or 'incidental' effort of only a few fruits. 

I have always assumed this phenological shift had more to do with biomass and nutrient uptake, but how it works exactly I don't know.  Maybe the pistils remain receptive longer, extending into the anther dehiscence stage? I have observed this phenomenon over a wide range of species and sections in Anthurium.

Regards,

Dylan Hannon

On 2 May 2011 22:42, Adhitia Pratama <a*@yahoo.de> wrote:
Dear Tony, 
 I have a study on Amorphophallus variabilis Blum. pollination in Indonesia. The sample taken from urban forest in  Univesity of Indonesia. My data shown the difference phenology between the previous study. The previous study was conducted 7 years ago. The sample of previous study was taken from plantation,  while my study was taken from urban forest. 

The previous study shown, 70 % of pollination happened from cross pollination, while my study shown about 80 % of pollination happened from self pollination. The difference was caused by the difference phenology.  I think the phenology difference was caused by the environmental, climatic, and pollinator differences.   Is there any species of Aroid which can have a difference phenology at the same species?

Thank You, 
Best Regards
Adhitia Pratama
Biology Departement
University of Indonesia
Depok
West java

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