548 Report oF THE HoRTICULTURIST OF THE 
once, since there may be many such pods in a diseased field, that a 
record of the yield of ripened beans could not give ‘an accurate 
expression of the amount of disease. 
In the following table, column I gives the comparative stand of 
plants from equal areas planted alike, counting the stand from 
healthy seed as 100. Column II gives the comparative yield by 
number of pods, counting that from heaithy seed as 100. The 

yield here given is the total yield less the percentage of injury — 
from anthracnose. Column III in a similar way compares the 
yield by weight. Column IV gives {he comparative amount of 
damage done to foliage at the close of the season, September 
27, 1892, counting the damage to plants from healthy seed as 
100. The damage to foliage at this date was partly due to 
bacterial blight, and it was impossible to make separate esti- 
mates of the effects of each disease. The estimate was very 
carefully made with the assistance of Mr. 1). G. Fairchild. 



Yield b Yield ‘by; ji} Gombacas 
. ield by ie omparative 
ees number of | weight of Anmiae to 
P ; pods. _ pods. foliage. 
Healthy seed). os 100 100 100 |. 100 
Diseased seed ...........: 84 91 83 108 
Iy is instructive to compare with the above the following table, - 
showing in a similar way the comparative condition of the planis 
earlier in the season, at the time of the first picking: 
t IL. prise TV: pire 
Stand of Yield by Yield by | Comparative 
plants. number of welgle of ed 
pods. pods. (0) 




a 
Healthy seed ...........6 100 100 » 100 100 
Diseased seed............ | 84 | 62 : 58 | 175 
This shows plainly that the effect vf the disease on plants from i ; 
healthy seed became more and :nore marked as the season 
advanced. At the time of the first picking, they were ahead of es 
ite 
ae 
Sy 
ce 
the plants from diseased seed by thirty-eight ih on hi 
a 
4 
3 
e 
4 
aa 
