434 SKINNER AND BEATTIE: EFFECT OF ASPARAGIN ON WHEAT 
be seen that each culture containing asparagin, no matter what the 
proportion of phosphate and potash may be, is larger than the 
culture growing in a similar solution without the asparagin. 
EFFECT OF ASPARAGIN IN CULTURES CONTAINING NITRATE 
In TABLE II are given the green weights obtained in the series 
of cultures, all of which contain the uniform amount of 8 parts per 
million NH; as nitrate, with varying amounts of potash and 
TABLE II 
EFFECT OF ASPARAGIN ON GROWTH IN CULTURE SOLUTIONS CONTAINING 8 PARTS 
PER MILLION ache AS NITRATE 
“Coen eee: of cultures 
Fertilizer it Ingresicnts { in culture 9c actution 
pom ts 
nue oheeue pe Shits ‘seis ook. —|- hout aspar With so p. p- m- 
‘a! ut aspara- | 
205 parts per | NH, parts per | KaO, parts Per | gin, grams | asparagin fn, 
ee 
57 o 8 72 | 1.880 1,830 
47 8 8 64 | 1.912 2.275 
38 16 8 56 | wee 2.184 
30 24 8 48 | 2.444 2.580 
23 32 8 40 2.027 2.665 
17 40 8 32 ee 2.433 
12 48 8 24 1.961 2.545 
8 56 8 16 | 2093 2.4) 
3 72 8 o |. 1.a65...1, 5 ao 
phosphate. The effect of asparagin is still noticeable in these 
green weight figures, as it was while the plants were growing, but 
the additional effect is much less marked than in the absence of 
nitrate as shown in TABLE I. The total growth in this series with- 
TABLE III 
EFFECT OF ASPARAGIN ON GROWTH IN CULTURE SOLUTION 
PER MILLION NHs3 AS NITRATE 
ee 
S CONTAINING 16 PARTS 
Fertilizer ingredients in culture solution Si wii weight of at 
Culture no. et With 50 p- oni - 
arts r Without aspara- ¥e 
nee pee ee ee eee ee _ sin, grams spre 
58 ° 16 64 1.905 oth 
48 8 16 56 erie 2.255 
39 16 16 48 #549 2.795 
31 24 16 40 2.518 2.660 
24 32 16 32 2.289 2.506 
18 40 16 24 2.633 | 9.545 
13 48 16 16 2.256 | 2.245 
9 56 16 8 te 
6 64 16 ba Oa 1 ee 
