38 
BULLETIN 1403, U. S. DEPARTMENT OF AGRICULTURE 
period at Havre, but not at Bozeman. At neither station were the 
differences significant. Strain A3-101 also slightly exceeded Hard 
Federation at Havre, but no strain studied was significantly longer 
than Hard Federation in fruiting period. 
All of the F 3 plants studied for fruiting period among 25 rows at 
Bozeman and 16 rows at Havre are compared with those from dupli- 
cate rows of both parents in Table 36. The Bozeman data are 
shown in Figure 5. 
Table 36. — Fruiting period of 1,698 Fa plants of Marquis-Hard Federation wheat 
crosses, in comparison with the parents, grown at Bozeman and Havre, Mont., in 
Station and fruiting period 
F 3 
hybrid 
Hard 
Federa- 
tion 
Marquis 
Bozeman: 
30.5 days. 
1 
1 
4 
1 
7 
32 
47 
46 
40 
74 
67 
128 
154 
185 
134 
76 
40 
4 
32.5 days 
34.5 days 
36.5 days .... 
1 
1 
* 
I 
6 
2 
15 
1 10 2 
14 
13 
13 
5 
1 
38.5 davs . .. 
40.5 da vs ... - . _! _________: .. ._ - 
5 
42.5 days ... _ . -..---. 
4 
44.5 days . . . •____________ . ... . .. . 
3 
46.5 days . . . .-_-.._. - 
6 
48.5 days 
7 
50.5 days ...-.._ ...... . _■_ 
16 
52.5 days 
21 
54.5 days ___"_■_____ .....-- .. 
22 
56.5 days . . . _ . _...-.. . . ..... ... 
8 
58.5 days 
2 
60.5 days . _ ........ . . 
1 
62.5 days . 
1 
64.5 days 
Total . 
1,041 
53.3 
106 
55.0 
97 
51.2 
Havre: 
22 days... . ... 
1 
1 
3 
11 
5 
9 
9 
15 
42 
52 
92 
97 
113 
92 
58 
31 
20 
5 
1 
23 days 
24 days 
25 days... .. 
26 days 
2 
27 days 
2 
28 days 
1 
29 days 
3 
30 days 
2 
6 
6 
12 
25 
19 
21 
19 
3 
2 
8 
31 days ... 
7 
32 days ... 
23 
33 days 
33 
34 days ... . 
20 
13 
36 days... 
1 
37 days 
38 days 
1 
39 days... 
40 days ....... 
Total 
657 
33.1 
115 
34.8 
114 
Average period in days ... . 
32.6 
These results confirm the data from F 2 plants and F 3 rows and 
show that the hybrids are intermediate to the parents in fruiting 
period. Several hybrid plants at both stations have a shorter fruit- 
ing period than any of the Marquis plants; only one plant, and that 
at Havre, had a longer fruiting period than the most extreme Hard 
Federation plants. Little or no evidence is presented, therefore, to 
show transgressive segregation for hybrids of longer fruiting period 
