370 
LOCK : STUDIES IN PLANT BREEDING 
were grown much too close together, and partly to the different 
season with more moisture and less sunshine. The plants were all 
badly mildewed. Half the plants grown at this time produced one or 
more branches. 
C .—Further Generations. 
!•—Nalive pea No. I x Telegraph, F 2 , and F 3 .—Six plants from F, 
seeds sown on December 8,1902, produced the following seeds :— 
In only two cases could any traoe of yellow be detected in a 
“ green ” seed, as examined through the semi-transparent testa— 
a proportion of 5 per cent., which may be compared with the 30 per 
cent, found in the uncrossed strain of Telegraph. 
Of the 107 seeds, 66 were sown on May 2nd, 1903, but only the 
plants arising from 21 yellow and 11 green seeds produced fruits. 
They ranged from 45 to 102 inches in height, the average being 
nearly 7 feet. ^ TT 
I 
1 
F, 
- F*. 
f 2 . 
htu 
1 Number of 
Nodes. 
si 
ii 
jl 
u 
{! 
i 
1 
0 - l 
Colour of Seedl 
II 
Ii s 
180.1.1 
.4 
.6 
D. Th 
64 
83 
tj 90 
;i 77 
20 
27 
i 32 
i 30 
seed wa 
i 
5 
8 
7 
! 2 
5 
5 
l 7 
1 4 
5 1 
6 i 
!l 
4 1 
16 j 
13 
1 1 
y 
y 
g 
g 
DR 
DR 
R 
R 
R 
DR. The yellow seed wL a heterozygote. 
