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fungi pic from to day


Gollum
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Gerrit

It seems a bit self-defeating that the oak would produce infertile acorns in response to stress. Is this down to producing a heavy crop with limited resources or is there some other mechanism at work? Other than planting and waiting for the seeds to germinate (or not) is there any other way of telling whether the cones will be infertile?

 

Nice photos Gollum. Not a fungi I see very often.

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1. It seems a bit self-defeating that the oak would produce infertile acorns in response to stress. Is this down to producing a heavy crop with limited resources or is there some other mechanism at work?

2. Other than planting and waiting for the seeds to germinate (or not) is there any other way of telling whether the cones will be infertile?

 

1. See my post on sterile acorns.

2. Yes, by assessing the presence or absence of generalistic and/or tree species specific ectomycorrhizal macrofungi from the perspective of their successive places in the tree species specific life cycle.

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So such a response in trees is flawed? As producing a stress crop reaps no benefit. The tree would be better off producing less (but viable) seed?

 

After prolific blossoming as a stress or panic reaction triggered by the diminishing vitality of the tree, there's no way back, because the tree cannot contol the (re)dispersion of energy (and DNA) in the acorns formed after pollination of the flowers.

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