Ig16] PRITCHARD—SUGAR-BEET BREEDING 463 
SUMMARY OF BIOMETRICAL CONSTANTS COMPILED FROM TABLES II-XI 
b 
XIV-XXV, AND XXVII-XXXII 
No. of Standard Coefficient of 
table | Characters Mean deviation correlation 
II (View ree of sugar in Toot in iy esc 19,23 0.042 | 0. Ae 0.029 
Yield of seed per b 906.) 8.940.179 | 4.199+0.126 |—0.027 0.039 
lr (i rcentage of sugar in root in 1906..... 20.770.065 | 1.296+0.046 
Yield of seed per beet in ounces in 1907.| 11.87+0.267 | 5.3570. 789 0.074 *0.050 
IV ee centage of sugar in Toot in 1908..... 23 .600.056 I.021 £0.039 
Yield of seed per beet in ounces in 1909.| 9.680.305 | 5.547+0.216 |—0.157 +0.054 
Vv (Pespentage of sugar in root in TOD. vs 20.18 0.052 1.63 +0.036 
Yield of seed per beet in ounces in r910.| 3.940.139 | 4.36 *02009 | 0.098 +0.032 
VI Wane of sugar in root in r9ro..... 18.72+0.031 I.16 *+0.022 
Yield of seed per beet in grams in rg91r..|215.90*+3.115 |117.29 *2.202 | 0.049 0.026 
Quantity of sugar per root in ounces in 
Vit 1905 2.640.037 | 0.87 0.026 
| |Yield of seed per beet in ounces in 1906.| 8.860.176 | 4.14 *+0.124 |—0.082 +0.026 
sooner of sugar per root in ounces in 
2 ee 3.890.086 | 1.725+0.060 
} vidas of seed per beet in ounces in 1907. ee 780.268 | §5.407%0.190 | 0.081 +0.049 
IX Weight of root in ounces in 1905. 3-04 =0. 202 4.748 0.143 i 
Yield of seed per beet in ounces in 1906. 3. 040.179 | 4.200%0.126 |—0.056 0.042 
x eet of root in ounces in 1906....... I9.42+0.470 | 9.480*0.330 
Yield of seed per beet in ounces in 1907.} 11.820.265 | 5.341%0.186 | 0.024 0.050 
XI (reine of root in ounces in I910....... 18.96+0.151 5.78 +0.106 
Yield of seed per root in grams in rorr..|216.75+3.086 |118.44 2.182 | 0.071 +0.026 
ee of sugar in mother roots in 
XIV ; 20.53 #0.032 ©.472+0.023 
Average rcentage of sugar in progeny 
a sy = 13.60+0.068 | 0.998+0.048 |—0.149 *0.067 
tree of sugar in mother roots in 
ERE 16.31 0.081 1.065 +0.058 
XV Valen 6 progeny rows for percentage of 
prc 8 Bene expressed in percentage 
096.460.1114 | 4.499%0.243 [—0.040 +0.076 
ee of sugar in mother roots in 
XVI 16.31 +0.081 1.065 0.058 
Averag e percent of sugar in progeny’ 
5 fy xg 13.61+0.074 | 0.972%0.052 |—0.090 0.076 
f sugar in mother root in 1908..}| 2.440.029 | 0.53 *0.021 
XVII Ounces ‘of sugar per beet in progeny in 
3.700.038 | 0.68 0.027 | 0.032 +0.050 
XVIII Ounce - sugar in pager root in 1906..| 3.280.107 1.24 0.076 
paren’ of sugar t in progeny in 
oa i of 2.43 +0.032 | 0.36 0.023 |—0.100 +0.088 
xIx = po ganigaleny eo mye 1907..| 4.670.063 1.413 0.044 
— ° ar t in pro; in 
ee splesiind 4.010.040 | 0.897+0.028 | 0.104 0.044 
xx Weigh ye patennig root in ounces in 1908] 10.31 0.121 2.19 0.086 
root in eny in 
sella ated 3.740.041 | 0.75 *0.029 | 0.092 *0.055 
—— ~! peti root in ounces in ge 16.22+0.548 | 6.19 0.388 
XXI root in progeny ii 
2.410.032 | 0.36 #0.023 |—0.11§ *0.087 
Xx wei t of mother root in ounces in 1906 16.22+0.548 | 6.19 0.387 
ag oi recap vevleieesieh aa) cakeciaod 0.84 *0.053 | 0.168 +0.086 
21.73 0.074 
