58 
BULLETIN 1403, U. S. DEPARTMENT OF AGRICULTURE 
The correlated inheritance of a character, one year with another, 
was found for all characters at Bozeman and for some at Moccasin. 
Also the correlation of each character at Bozeman one year with 
that from Havre the next year was determined to learn the environ- 
mental effect, as conditions at the two stations are very different. 
The weighted averages of the coefficients obtained at the different 
stations or in different years also have been determined and serve to 
show the trend of correlation under Montana conditions. Probable 
errors for these averages have not been determined, as four observa- 
tions are not sufficient for applying the probable-error concept. 
More observations are necessary before the significance of average 
correlations may be determined. 
HEADING PERIOD 
The coefficients of correlation obtained for the heading period 
one year with another at Bozeman and at Bozeman one year with 
Havre the next year are shown in the first portion of Table 52. 
The coefficients obtained for heading period with ripening period, 
fruiting period, height, yield, and crude-protein content follow in the 
order listed. 
Table 52. — Correlation coefficients and probable errors of heading period in Fz 
and F 3 generations and of heading period with ripening period, fruiting period, 
height, yield, and crude-protein content of Marquis-Hard Federation wheat 
* crosses grown at Bozeman, Moccasin, and Havre, Mont., in one or both of the 
years 1928 and 1924 
Heading period 
Correlated with— 
Number 
ofF : 
plants 
orFs 
strains 
Correlation 
coefficient 
and 
probable 
error 
n A - ■ A /F3, Bozeman, 1924 
224 
300 
0. 505±0. 034 
Fj, Bozeman, 1923.. ... 
Heading period... | F J Havr6) 19 ' 24 
524 
.548 
) (F2, Bozeman, 1923 
F2, Bozeman, 1923.. 
583 
224 
150 
298 
. 333± .025 
F3, Bozeman, 1924 
1^. . . , J F3, Bozeman, 1924 
.387± .038 
Ripening period...^ F J Moccasin ; 1924 _ _ 
. 639± .033 
F3, Havre, 1924... 
J lF 3 , Havre, 1924 
.422± .032 
Total or average.. 
1,255 
.400 
| (F2, Bozeman, 1923 
F2, Bozeman, 1923 
583 
224 
150 
298 
— . 249-t- .026 
F3, Bozeman, 1924.. 
I-™ m.. • j F3, Bozeman, 1924 
— .307± .041 
F3, Moccasin, 1924 
jFruitmg period.. J F |; Moccasin ; 1924 _ _ 
— .161± .054 
F3, Havre, 1924 
J IF3, Havre, 1924.. .-.'... 
— . 362± .034 
Total or average. . 
1,255 
-.276 
] (F2, Bozeman, 1923. 
F2, Bozeman, 1923 
583 
224 
150 
299 
.090± .028 
F3, Bozeman, 1924 
Itj . .. J F3, Bozeman, 1924 
.336± .040 
Mieignt < F ^ Moccasin, 1924 ... 
.006± .055 
F3, Havre, 1924 
J IF3, Havre, 1924 
. 128± . 038 
Total or average . 
1,256 
.133 
] fF2, Bozeman, 1923.. ._ 
F2, Bozeman, 1923 
583 
224 
150 
299 
-.042± .023 
F3, Bozeman, 1924... 
I v . , , I F3, Bozeman, 1924 . 
. 106± . 045 
F3, Moccasin, 1924 
pieia < F3j Moccas i n> 19 24 
,157± .054 
F3, Havre, 1924... 
J IF3, Havre, 1924 
— .028± .039 
Total or average.. ._ 
1,256 
.011 
| fF2, Bozeman, 1923 
F2, Bozeman, 1923 
567 
224 
118 
297 
.051± .028 
F3, Bozeman, 1924... 
[„ , , . F3, Bozeman, 1924 
.072± .045 
F3, Moccasin, 1924 
Crude protein.... JJ* Moccasin ; 1924 " 
— .080± .062 
F3, Havre, 1924 
J IF3, Havre, 1924.. 
.183± .038 
Total or average 
1,206 
.073 
