20 BULLETIX 1334^ U. S. DEPAETMEXT OF AGEICULTtJEE 
In Table 1 are given the yields of the varieties grown during all or part of the 
years 1910 to 1915, inclusive. Of those grown for the entire period of six years 
(Dhevaher II (C. I. No. 200) gave a yield of almost 113 percent of the weighted 
mean. In the first group digest, the detailed statement of V\"hich does not appear 
here, the yields of the varieties falling in the Chevalier, Thorpe, Hanna, Man- 
churia, and hybrid groups were summarized. The Chevalier group gave the 
highest yield, Hanna the second highest, IManchuria third, and Thorpe fourth. 
Although nine hybrid varieties were tested the group yields of the hybrids were 
inferior to those of the other groups. In the summarized digest of Table 1 six 
important varieties are compared. It is obvious that the group yields are not 
always indicative of the relative value of types. The general average yield of a 
group with many varieties may be lower than that of a group which contains 
only a few, when in reality the best-yielding individual varieties are in the large 
group. This happens, of course, when all of those of the small group are much 
better than the average, while only a few of the varieties of the larger group are 
superior. The table shows that Chevalier II was the best variety during the 
six vears compared. Hannchen (C. I. No. 531) was almost as good as Chevalier 
II, and IManchurian (C. I. No. 739) was fourth. Stella (C. I. No. 267S), one of 
the better hybrids produced by the Central Experimental Farm at Ottawa, was 
third among the six varieties compared. 
N.iPPAN, NOVA SCOTIA 
At Nappan, Nova Scotia, 75 varieties of barley were tested during one or 
more of the 26 j^ears from 1890 to 1915, inclusive. It will be noticed in the 
statement of percentages in Table 2 that varieties belonging to the Chevaher 
and Manchuria groups are almost uniformly good. Several varieties now well 
known were not introduced until late in the experiments, and it may be that the 
number of years they were tested was insufficient to give a proper estimate of 
their value. The yield obtained from Gold (C. I. No. 1145) was very good in 
the two years tested. Manchurian (C. I. No. 739), Hannchen (C. I. No. 531), 
and O. A. C. 21 (C. I. No. 1470) were not outstanding at Nappan. These have 
proved to be promising sorts at many other stations, and it is rather surprising 
that they do not yield better at Nappan. Others of the same groups did weU at 
that place. In the group digest made from the yields of barley varieties at 
Nappan the Manchuria group was decidedly better than the others compared. 
The Chevalier was second, the Hybrid third, and the Hanna last in point of yield. 
These group relationships show that although Nappan is on the mainland, 
only a few miles from Charlottetown, the section is not so favorable as Prince 
Edward^ Island for the growing of Chevalier barleys. This point is also brought 
out in the summarized digest in which 10 promising varieties of various groups 
are compared. Of these Mensury (C. I. No. 2657) is the best, French Chevalier 
<C. I. No. 175) is almost equal to it, and Stella (C. I. No. 2678), Odessa (C. I. 
No. 182), and Canadian Thorpe (C. I. No. 740) follow in the order named. The 
poorest of the 10 was Blue Long Head (C. I. No. 2685). This is of interest, as 
this variety belongs to the Coast group and is best adapted to arid and semiarid 
■climates where the ripening season occurs during an almost rainless period. 
Success (C. I. No. 2707) was inferior to all others except Blue Long Head (C. I. 
No. 2685), Petschora (C. I. No. 2658), and Nepal (C. I. No. 595). Petschora is 
an early form received from a section of Russia much farther north than Nappan. 
