396 
LOCK : STUDIES IN PLANT BREEDING 
larger. In certain areas of the pods traces of a want of the parch¬ 
ment layer could be detected, but these areas were small and the 
pods were fully inflated. 
The colour of the testa was rather pale gray, with a tendency to 
become yellow in weathered pods. All the testas were dotted with 
purple—perhaps not quite so strongly as those of Fr. sug. In shape 
and size the seeds were intermediate and all of them were well 
dimpled. 
The bad effects of bright sunshine alternating with showers of rain 
was very marked in the case of these plants, the stipules being much 
blistered and damaged in this way. 
2. French sugar yea x Native yea No. 1 .— -The reciprocal cross was 
made under unfavourable conditions in October, 1902. Out of seven 
crosses attempted three were successful with 8 seeds as the result. 
These were sown on December 22, the first flowers appeared after 
53 days and ripe seeds were gathered from 5 plants on March 18, 1903. 
No. 
! Height. 
Nodes. 
AverageLength 
of Internode. 
Branches. 
Pods. 
Seeds. 
291*1 
62 
31 
2-0 
7 
25 
292-1 
46 
25 
1-9 
— 
3 
8 
•2 
68 
31 
2-2 
3 
10 
37 
322-1 
72 
32 
2-2 
— 
5 
18 
•2 
62 
30 
2.1 
— 
4 
10 
The more stunted habit of these plants is probably to be associated 
with the drier season in which they grew ; and the absence of 
branches upon four out of five of them may perhaps be attributed to 
the same cause. In all other respects these plants resembled those 
derived from the reciprocal cross. 
C.— The Second and Third Generations from the Cross. 
A somewhat full account of the behaviour of seed characters in 
these generations has been given in a previous paper, page 328. 
This may be here supplemented by the following table containing a 
résumé of the characters of the plants grown in F, and of some of 
those of their offspring in F 3 , 
