QUALITY OF RUSSET BURBANK POTATOES AS AFFECTED BY SET DENSITY
In four experiments it was found that six clones of Russet Burbank were similar and optimum marketable yields were obtained at 3–4 sets/m2. In a more extensive investigation using commercial clone, the optimum processing yield occurred at 4 sets/m2 whilst seed class yield increased up to 12 sets/m2. Cooking quality was similar at all densities and the specific gravity was also unaffected and exceeded the minimum of 1.070 acceptable to processors. Hollow heart was recorded in two experiments and affected 30% of tubers. It was unaffected by set density but was most serious in large tubers (>300 g).