624 
Journal of Agricultural Research 
Vol. V, No. 14 
Table XXXV .—Summary of plant and environmental data 
crop op 1912 
Wheat. 
Turkey. 
Kharkov. 
Kubanka. 
Mean for 
all varie¬ 
ties. 
Transpiration period. 
Date of cropping. 
June 25 to 
July 11 
Aug. 1 
344 
258 
320 
June 20 to 
July 5 
Aug. 1 
366 
302 
450 
June 25 to 
July 8 
Sept. 3 
270 
174 
260 
June 20 to 
July 11 
Yield of dry matter.gm.. 
Mean maximum transpiration.gm. per hour.. 
Maximum transpiration.gm. per hour.. 
Mean maximum radiation, calories per sq. cm. per 
minute... 
327 
238 
0.8 
86.1 
1.6 to 7.5 
0*73 
Mean tna-s-imiim air temperature. 0 F_. 
■Rntippin mean wind velocity. 
Mean maximum transpiration per gram of dry matter 
harvested. 
0. 75 
0.83 
0.65 
CROP OP 1912 
Oats. 
Sorghum. 
Swedish 
select. 
Minnesota 
Amber. 
Milo. 
Dwarf 
Milo. 
Mean for 
all varie¬ 
ties. 
Transpiration period.. 
Aug. 4 to 
18 
Aug. 23 
411 
271 
464 
1.02 
IM 
0. 602 
79.0 
2.5 to 6,7 
a 66 
Aug. 23 to 
29 
Sept. 26 
667 
412 
Aug. 25 to 
29 
Sept. 27 
509 
430 
Aug. 24 to 
29 
Sept. 27 
434 
354 
Aug. 23 to 
29 
■Date of cropping... 
Yield of dry'matter.gm.. 
Mean maximum transpiration, gm. per 
hour.... 
537 
408 
Maximum transpiration... .gm. per hour.. 
Mean maximum radiation, calories per sq. 
cm. per minute. 
1.05 
26. 7 
i-138 
91. 7 
2.4 to 8.7 
0. 76 
Mean ma vtmnm wet-hlllh depression . . 
Mean maximum saturation deficit, inches,. 
Mean ma-vimum air temperature.°F.. 
Mean maximum transpiration per gram of 
dry matter harvested. 
0.62 
0.84 
0.81 
CROP OP 1914 
Rye. 
Alfalfa. 
Amaran- 
thus. 
Early 
period. 
Whole 
period.. 
Late 
period. 
Transpiration period . 
June 22 to 
June 18 to 
Oct. 16 to 
July 7 to 9 
July 3 
21 
20 
Date of cropping..... 
July 25 
July 11 
TC* 
Oct. 26 
July 14. 
Vield of drv matter.. gm 
186 
176 
122 
Mean maximum transpiration, gm. per 
hour. 
294 
414 
482 
488 
234 
Mean maximum evaporation, gm. per 
hour. 
774 
867 
710 
616 
940 
Mean maximum radiation, calories per sq. 
cm, per minute. 
1.38 
1-34 < 
1.28 
x. 21 
1.38 
Mean maximum wet-bulb depression. 
22.8 
* 5-7 
25.0 
26 
27-3 
Mean maximum saturation deficit, inches. . 
0.820 
I.043 
• 0.827 
o.Sxi 
x- 056 
Mean maximum air temperature. .... 0 E. . 
82.6 
89 
79 - 7 
77 
88.5 
Range in mean wind velocity . 
3.9 to 8.7 
1 - 5*0 7 
3-5 to 8.3 
3.8 to 14.4 
2.5 to 10.7 
Mean maximum transpiration per gram of 
dry matter harvested . , T ,, .,. 
1.58 
2.64 
2. 77 
1.92 
