214 HOW CROPS GROW. 
second, the second from the third, etc.,) the gain from 
‘matters absorbed or produced during each period, will 
serve to justify the deductions that follow, which are taken 
from the treatise of Arendt, and which apply, of course, 
only to the plants examined by this investigator. 
1,000 Entire Piants, (WATER-FREE.) 
Contain at 
produce 
within 
Contain 
Absorb or' 
produce 
within 
Contain 
at 
end of 
Absorb or 
produce 
within 
col 
® 
By 
H 
Lael 
v 
BS 
3 
aa 
H 
= 
. {Period III. Ferlod IV.] Period V. 
open. out. Blossomed.} to ripen. Ripe. 
564.8] 105.1] 545.0/ Loss} 550.6] Loss 
9} 84.0] 97.6] 14.7 < 
916.7%] 292.1)1242.6] 325.9/1340.0) 97.4 
2.8] 43.9) 8 351.6 
B 
< 
xO 
& 
Cc 
3 
= 
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08 
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& 
3 
=. 
5 
R 
» . [matters 20:1 489 
nitrogenous} 201.4 | 624.6 
oo 
BESS 
Bra0 00m 
8 
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oo 
= 
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Sc 
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= 
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to 
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at 
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2) 
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pacwes 
SSSRRS | < 
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1134 
| 83.43|100.41} $0.33|120.75] 20.34]126.93| 7.18 
Dry Matter.........4e+4-/ 455.8 [1863.6] 907.811867.61 504.012523.8) 456.212458,5| 194.7 
1, The plant increases in total weight, (dry matter,) 
through all its growth, but to unequal degrees in different 
periods. The greatest growth occurs at the time of head- 
ing out; the slowest, within ten days of maturity. 
We may add that the increase of the oat after blossom 
takes place mostly in the seed, the other organs gaining 
but little. The lower leaves almost cease to grow after 
the 2d period. 
2. Fiber is produced most largely at the time of head- 
ing out, (2d period.) When the plant has finished blos- 
soming, (end of 3d period,) the formation of fiber entirely 
ceases. Afterward there appears to occur a slight diminu- 
% The weights in this table are grams. One gram = 15.434 grains, As the 
weights have mostly a comparative value, reduction to the English standard is 
unnecessary 
