Excerpt from Potato Spindle-Tuber It is well known that tuber shape may vary considerably within a variety of potatoes even in the same field, and that the general or average shape of the tubers cut for seed often is not resembled closely by the Shape of the tubers dug at the harvest. Differences in average tuber shape observed in different parts of a field have been attributed to soil differences. F oi example, the writer of this bulletin has seen the same seed stock planted on low, dark soil (washburn loam) and on high light soil (caribou loam) with darker color and more gnarled, poor - shaped tubers appearing in the crop from the low soil, especially when it was too wet for part of the season and was baked hard the last part. This was true for several varieties in several localities in 1922 in northeastern Maine. Thus it is seen to be possible for soil condi tions to have a direct effect upon tuber shape. About the Publisher Forgotten Books publishes hundreds of thousands of rare and ...
