REPORT OF TEE .CHEMIST 



167 



SESSIONAL PAPER No. 1'6 



Barley. — The foregoing experiments were repeated with barley, using seed from 

 the crop of 1909, grown on irrigated and non-irrigated areas, respectively. 



Moisture-context of Barley Plots. 



Date. 



May 25, 1910 



June 21, " 

 July 4, " 



•July 10, " 



July 18, » 

 Aug. 1, " 



Comparing the moisture-content of the two plots at the outset, the soil of the 

 ' irrigated ' area was decidedly the drier and this relationship obtained until the date 

 of the first irrigation, June 22. After this date, the irrigated plots showed consider- 

 ably more moisture than the non-irrigated, which steadily declined until the close of 

 the season. It is of interest to note that the percentages of moisture for these irri- 

 gated barley plots were, subsequent to the first irrigation, higher than for the corres- 

 ponding plots under wheat. 



Barley, 1910. 



I'.xpt. 



A. 



11. 



! 



Laboratory 



No. 



8323 

 8320 

 8322 



8319 

 8321 



Designation of Sample. 



Mensury, parent seed, grown on irrigated laid, 1909. . . . 



" grown on irrigated land, 1910 



" grown on non-irrigated land, 1910 



" parent seed, grown on non-irrigated land, 1909. 



" grown on irrigated land, 1910 



" grown on non-irrigated land, 1910 



Weight of 



1000 

 Kernels. 



39-0392 

 33-67GI 

 27-4728 



33-9888 

 28G248 



Protein 

 (Nx57) 



10 20 

 ]0'20 

 14 59 



10 20 



14-71 



In Experiment A, the seed used had been grown on irrigated land in the year pre- 

 vious and was characterized by a low protein-content. The product on irrigated soil 

 was found to be identical in nitrogen with its parent. It is clear that the conditions 

 on these irrigated areas are distinctly favourable to the development of a low protein 

 barley. It would further appear that these conditions must have been very similar 

 during both seasons. Whether the lowest limit in nitrogen for this particular variety 

 has been reached is not conclusively shown, but such is probably the case. 



The product on non-irrigated soil is seen to be more than four per cent higher 

 in protein than its parent, evidence that this cereal, like wheat, is readily influenced 

 by soil moisture conditions. 



Experiment B. The parent seed in this experiment bad been grown at Lethbridge 

 on non-irrigated land. Unfortunately, we are unable to present figures as to its protein- 

 eontent, as the sample through some error or accident failed to reach the laboratory. 

 The data from its progeny, however, tell the same tale as those in Experiment A, 

 viz.: that the irrigated crop gave a low protein grain while that grown under 'dry 



