In Wulfs excellent article -here- he talks about the runic elements of the Ar - the rune of the plough and of the Aryan. I'd like to further this idea with the rune Ear, which is also connected to the concept of Ar and the Aryan.
If we take a look at the painting by the bauernkünstler Wolfgang Willrich, there is a huge amount of Germanic rune lore hidden within the picture. Of course most noticeably are the runes above the man woman and Irminsul. However the plough which is held by the farmer and the wheat held by the lady are further clues to the Ar and Ear rune meanings.
(click to enlarge)
As we read in Wulfs post, and on posts made earlier in this blog - the Ar rune represents the Aryan and the plough - the word Aryan and its variants (Erian, Arjan etc) all mean 'one who ploughs' or 'works the land' - thus the Ar rune is much a rune of Blood and Soil as the Odal rune. Ar is the root of Arable - or farm.
The wheat itself has runic lore connected to it. In the rune poems we read that the 'Hægl byþ hwitust corna' or Hail is the whitest of grains' (corn). This is the description of Hail(stone) *, however the word wheat is also connected to 'whiteness' - coming from the old Germanic word Weizen (which is the root of both White and Wise). The most ancient form of this word is from the Proto Indo-European *kweid, which means 'to be white' or 'to shine'. The idea of the wheat 'shining' may be symbolic as it is considered a gift from the gods. Wheat was given to the first English by the boy-king Sceaf.
Wheat is also connected to the Ear rune - as in an Ear of wheat. The Ear rune is symbolic of wheat in its shape. The root of the word Ear (of wheat) is from the Germanic word Ehir (the word appears as Ear in Saxon and æher in Northumbria). Older Germanic forms are 'Ähre' or 'Ahs'. The term Ähre connects wheat back to the term Ehre and Ar, both meaning Noble (Arya) which again links the idea of farming back to the early Aryans.
* notice the Hagal-Hail rune above the Irminsul
Ear rune binding representing the Wheat.