Black Walnuts—Cracking Quality

Percentage of kernel that drops out after cracking.
Highest, Alley[4], 100%; Lowest, Butler, 22.9%.

Cracking Quality. Points.
100% 20
96%and all higher percentages under100%19
92%and all higher percentages under96%18
88%and all higher percentages under92%17
84%and all higher percentages under88%16
80%and all higher percentages under84%15
76%and all higher percentages under80%14
72%and all higher percentages under76%13
68%and all higher percentages under72%12
64%and all higher percentages under68%11
60%and all higher percentages under64%10
56%and all higher percentages under60%9
52%and all higher percentages under56%8
48%and all higher percentages under52%7
44%and all higher percentages under48%6
40%and all higher percentages under44%5
36%and all higher percentages under40%4
32%and all higher percentages under36%3
28%and all higher percentages under32%2
24%and all higher percentages under28%1
20%and all higher percentages under24%0

Color of Kernel: This is determined in the same way as the color of the shell by comparing with a standard color scale, and the step of the scale whose color most nearly matches the color of the kernel being examined gives the figure to be awarded.

Proportion of Kernel: This is the ratio of the weight of the kernels of five average nuts to the entire weight of such average nuts. After this has been determined a comparison with the table below which was made up after an examination of the proportion of kernel of a large number of nuts, the number of points to be awarded is readily determined. If we take for example the Lutz black walnuts again we find the weight of five average nuts 132.0 grams and the weight of the kernels of these nuts 32.5 grams which gives for the proportion of kernel 24.0% which would be awarded 8 points.