132 



FIELD CROPS 



SCORE CARD FOR EAR CORN 

 Used by the College of Agriculture, University of Minnesota 



Yield, 50 points. 



Standard 

 Score 

 Points 



(1) Form of ear. Nearly cylindrical; straight, regular rows. 

 Proportionate length to circumference, about 4 to 3. Ker- 

 nels should be similar at ends and middle. Tapering, irregu- 

 lar, or malformed ears are objectionable 10 



(2) Butts of ears. Rows of kernels regular and complete, 

 leaving a medium deep depression where shank is broken off. 

 Enlarged, open or contracted butts are objectionable 5 



(3) Tips of ears. Well rounded and filled with regular, full- 

 sized kernels. Not pointed or tapering 5 



(4) Length of ear. This varies with the variety. 1 10 



(5) Circumference of ear. This varies with the variety.2 8 



(6) Kernel arrangement. The kernels should be arranged in 

 straight, even, and unbroken rows. Twisted rows or other- 

 wise irregular rows are objectionable 2 



(7) Space. Between the rows of kernels should be slight; 

 between the kernels at cob, none 2 



(8) Kernel shape. Varies slightly acc9rding to variety. They 

 should be square shouldered, straight on sides, and taper 

 (wedge-like) slightly from cap to tip 2 



(9) Kernel uniformity. All kernels on all parts of the ear 

 should be nearly uniform in size and shape 1 



(10) Per cent of shelled corn. Determined by weight. It is 



very important that the per cent be 80 or more. 3 5 



Variety Characters, 10 points. 



(1) Color of grain. Uniform. True to the variety represented 



and free from hybrid kernels 5 



(2) Color of cob. True to variety and of bright luster. Gen- 

 erally white corn has white cob and yellow corn has red 



cob 2 



(3) Kernel indentation. Typical of variety represented 



(4) Kernel shape. Typical of variety represented 1 



Vitality, 25 points. 



(1) Luster. Means the brilliancy of color. The ears and ker- 

 nels should be bright throughout. Weathering or aged 

 appearance is objectionable 5 



(2) Germ, color. Should be rich cheese color and bright 5 



(3) Germ, size. Should be large in proportion to kernel 



(4) Germ, shape. Straight and broad. Not cramped 



(5) Kernel condition. Sound, well filled, firm and well cured. ... 5 

 Market Condition, 15 points. 



(1) Maturity. The ears should be thoroughly mature, dry, ' 

 firm and sound 10 



(2) Freedom from injury. Mold, decay, dirt, mice-gnawed, 



or shelled kernels, and weathering 5 



100 



iLength. Measure with the ruler al! of the ears. Take one point off in the 

 score for each 2 inches less than standard thus obtained. No deduction is made 

 for excess length. 



2Circumference. Measure with the tape about 2 inches from the butt of each 

 ear. Take one point off the score for each 2 inches of deficiency obtained. No cut 

 is made for excess circumference. 



3Per cent of shelled corn. Weigh the average five ears; shell them and weigh 

 the shelled corn; divide the shelled weight by the total weight to get the percent- 

 age, and cut one point off the score for each per cent less than standard, 85 per cent. 



