GRAIN SORGHUMS IN THE TEXAS PANHANDLE. 



19 



suckers was produced on each plat, amounting to over 66 per cent in 

 the early and to more than 45 per cent in each of the other seedings. 

 In the unfavorable season of 1918 few suckers were produced. These 

 amounted to about 14.5 per cent in the early and late seedings and 

 13 per cent in the normal seeding. 



The percentage of stalks bearing heads runs high in the favorable 

 seasons and low in the unfavorable ones. In the season of 1915 the 

 early seeding produced 97 per cent of headed stalks, the normal 

 seeding 94.8 per cent, and the late seeding 91.4 per cent. The 

 maximum of 100 per cent was made by each seeding in 1919. In 

 the poor seasons of 1916 and 1918 the percentage of headed stalks 

 was quite small. 



Table VII. — Yields and other agronomic data in date-of-seeding experiments with Dawn 

 hafir at the Amarillo Cereal Field Station, each year, during the 6-year period from 1914 

 to 1919, inclusive. 





[In the statement of 



yields 



oer acre 



the bushel is rated at 60 pour 



ds.] 







Year and time 



Row space. 



Length of growing 

 period. 



Suck- 

 ers. 



Head- 

 ed. 



Height 



of 

 plants. 



Grain 



in 

 crop. 



Yields per acre. 



of seeding. 



Plants. 



Stalks. 



Vege- 

 tative. 



Fruit- 

 ing. 



Total. 



Total 

 crop. 



Grain. 



1914: 



Early 



Normal 



Late 



1915: 



Early 



Normal 



Late 



1916: 



Early 



Normal 



Late 



1917: 



Early 



Normal 



Late 



1918: 



Early 



Normal 



Late 



1919: 



Early 



Normal 



Late 



Inches. 



VIA 



5.7 



5.9 



19.9 

 10.2 

 14.5 



7.2 

 9.1 

 5.1 



10.6 

 10.0 



26.0 



7.4 

 8.4 

 5.0 



10.4 

 11.6 



5.8 



Inches. 

 8.8 

 4.8 

 5.0 



6.6 

 6.0 

 7.9 



3.8 

 4.5 

 3.7 



4.5 

 4.3 

 11.1 



6.3 

 7.3 



4.2 



5.2 

 5.8 

 3.8 



Days. 

 81 

 73 

 71 



89 

 81 

 80 



113 

 118 

 97 



104 

 72 

 89 



98 

 79 

 75 



96 



77 

 77 



Days. 

 32 

 29 

 39 



52 

 50 

 57 



•20 



' 26 



■ 18 



23 

 21 

 29 



58 

 57 

 49 



27 

 30 

 38 



Days . 

 113 

 102 

 110 



141 

 131 

 137 



133 



144 

 115 



127 

 93 

 118 



156 

 136 

 124 



123 

 107 

 115 



p. a. 



49.3 

 15.7 

 12.6 



66.8 

 45.3 

 45.5 



47.3 

 50.9 

 26.1 



57.3 

 56.8 

 57.4 



14.5 

 13.2 

 14.9 



49.7 

 50.1 

 33.9 



P.ct. 

 83.5 

 61.8 



88.5 



97.0 

 94.8 

 91.4 



11.9 

 45.2 

 32.6 



77.6 

 52.2 

 79.3 



17.0 

 12.3 

 11.1 



100 

 100 

 100 



Feet. 

 3.8 

 3.0 

 4.0 



4.5 

 4.3 



4.8 



2.5 

 3.3 

 3.3 



4.0 

 3.8 

 4.5 



2.3 

 2.5 

 2.3 



3.5 

 4.0 

 4.0 



P.ct. 



27.4 

 16.1 

 21.1 



32.7 

 36.1 



27.1 



4.2 

 20.0 



15.5 



5.4 



21.0 



4.4 

 4.7 

 4.3 



29.1 

 33.3 

 32.3 



Lbs. 

 5,480 

 5,440 

 4,750 



9,610 

 8,860 

 10,220 



1,660 

 5,200 

 2,100 



7,660 

 5,560 

 5,040 



2,750 

 1,500 

 2,080 



6,980 

 5,760 

 6,560 



Lbs. 



1,500 



880 



1,000 



3,150 

 3,200 

 2,770 



No grt 

 220 

 420 



1,190 



300 



1,060 



120 

 70 

 90 



2,030 

 1,920 

 2,120 



Bush. 

 25.0 

 14.7 



16.7 



52.5 

 53.3 



46.3 



tin. 

 3.7 

 7.0 



19.8 

 5.0 

 17.7 



2.0 

 1.2 

 1.5 



33.8 

 32.0 

 35.3 



The average height of the plants ranged from 2.3 feet in 1918 to 

 4.8 feet in the late seeding in 1915. Growing conditions in the vege- 

 tative period largely govern the height of the plants. With favorable 

 conditions during this period the height will be greater than with 

 unfavorable conditions when followed by favorable conditions during 

 the fruiting period. Dawn kafir usually attains a height of about 

 4 feet under average conditions. 



The yields vary with seasonal conditions. The highest total yield 

 10,220 pounds, was made by the late seeding in the favorable season 

 of 1915, and the lowest, 1,500 pounds, by the normal seeding in the 

 poor season of 1918. Low yields were obtained in 1916. That year 

 the early seeding produced 1,660 pounds of crop; but only 11.9 per 



