GRAIN SORGHUMS TN THE TEXAS PANHANDLE. 



31 



need to be considered. These data are shown in Tables XV to XIX, 

 inclusive. 



FIRST SECTION, ROWS 3£ FEET APART. 



Table XV shows the results with Dawn kafir in the spacing experi- 

 ment with the rows 34 feet apart. (Fig. 10.) Six plats were sown 

 each year, representing six different rates. In a few cases practically 

 the same stands were obtained in two plats in the same year. This 

 condition occurred in the first two plats in 1914 and again in the last 

 two plats in 1918. In general the thick rate ranged from 3 to 7 inches 

 and the thin rate from 15 to 20 inches of row space to the plant in the 

 different years. However, the last two plats in 1917 and in 1919 had 

 much thinner stands. 



Table XV. — Data recorded in the spacing experiments with Dawn kafir grown in rows 

 spaced 3\ feet apart at the Amarillo Cereal Field Station during the 6-year period from 

 1914 to 1919, inclusive. 



[In the statement of yields per acre the bushel is rated at GO pounds.] 



Year. 



Row space — 



Plants. Stalks 



Suckers. 



Headed . 



Yields per acre. 



Total 

 crop. 



Grain. 



1910. 



1917. 



Inches. 

 7.0 

 7.2 

 8.0 

 10.8 

 11.0 

 18.7 



6.0 

 8.8 

 11.8 

 14.8 

 18.8 

 21.1 



4.0 

 7.4 

 11.8 

 13.0 

 17.1 

 20.5 



6.1 

 10.8 

 15.9 

 19.3 

 26.2 

 32.7 



3.0 

 6.0 

 9.0 

 12.0 

 14.6 

 14.9 



7.6 

 13.0 

 19.6 

 21.9 

 37.4 

 38.7 



Inches. 

 5.3 

 5.0 

 5.2 

 5.6 

 5.9 

 7.7 



4.1 

 4.1 

 4.9 

 5.4 

 6.5 

 8.0 



3.4 

 4.7 

 6.2 

 6.5 

 7.4 

 8.6 



4.0 

 4.9 

 5.5 

 5.9 



7.8 

 8.9 



2.3 

 5.2 

 7.7 

 10.0 

 11.6 

 10.8 



4.3 

 6.7 

 9.6 

 10.9 

 16.4 

 15.2 



Per cent . 

 24.8 

 30.7 

 35.3 



47.7 

 46.7 

 58.7 



32.7 

 53.3 

 58.6 

 63.5 

 65.3 

 62.0 



16.0 

 36.3 

 47.7 

 50.5 

 56.6 

 58.3 



34.4 

 54.5 

 64.9 

 69.7 

 70.1 

 72.7 



25.1 

 14.2 

 14. 1 

 17.0 

 20.6 

 27.1 



15.4 

 48.3 

 51. 2 

 50.0 

 55.1 

 60.7 



Per cent. 

 40.7 

 63.0 

 67.1 

 59.8 

 60.4 

 76.2 



93.6 

 93.3 

 95.3 

 96.6 

 96.0 

 - 96. 1 



13.3 

 59.6 

 53 6 

 51.3 



62.7 



67.2 

 64.5 

 68.2 

 73.5 

 90.5 

 83.8 



2.1 

 6.0 

 18.9 

 12. 1 

 22. 1 

 23.0 



100 

 100 

 100 

 100 

 100 

 100 



Pounds. 

 4,222 

 5,180 

 5,360 

 4,780 

 4,860 

 4,600 



11,710 

 11,410 

 11,130 

 11,250 

 9,870 

 8,470 



1,160 

 1,640 

 3,800 

 3,000 

 2,780 

 2,640 



6,120 

 6,260 

 5,940 

 5,940 

 5,160 



1,660 

 1,540 

 1,580 

 1,080 

 1,160 

 1,400 



6,840 

 5,860 

 5,700 

 5,160 

 4,160 

 4,300 



Pounds. 

 522 

 1,052 

 1,110 

 1,010 

 1,120 

 1,140 



3,610 

 4,140 

 4,100 

 4,070 

 3,760 

 3,330 





 60 

 350 

 250 

 230 

 310 



890 

 730 

 1,110 

 1,070 

 1,610 

 1,260 



20 

 40 



110 

 40 

 70 



200 



2,330 

 1,940 

 1,970 

 1, 780 

 1,530 

 1,560 



Bushels. 

 8.7 

 17.5 

 18.5 

 16.8 

 18.7 

 19.0 



60.2 

 69.0 

 68.3 

 67.8 

 62.7 

 55.5 



1.0 

 5.80 

 4.2 

 3.8 

 5.2 



14.8 

 12.2 

 18.5 

 17.8 

 26.8 

 21.0 



.3 



.7 



1.8 



.7 



1.2 



3.3 



38.8 

 32.3 

 32.8 

 29.7 

 25.5 

 26.0 



The tendency to produce suckers changed with the stand and with 

 the season, the percentages usually increasing as the stands decreased. 

 In 1915 the proportion of suckers ranged from 32.7 per cent in the 



