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Mast year


David Humphries
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Even the terminally ill looking oak that i posted about a while back (with the completely rotten base if you recall it) is showing signs of massive fruiting!

 

Tommer,

Did you check which percentage of the acorns was fertile or sterile ? Fertile 70 % ==> mast year, sterile 70 % ==> panic fruiting.

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How can you tell??

 

Stephen & Tommer,

Fertile acorns are firm and robust. They have well developed kernels with an energy storage sufficient for five years of growth of the seedling after germinating.

Sterile acorns are smaller, easy to push in, don't have a well developed kernel and mostly look as "shabby" as the ones in the photo.

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Eik-Armillaria-witrot-eikel.jpg.600459e17c7047d28a6ccfd03718f63e.jpg

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