1U5 SORGHUM. 



5. Panicle entirely ont: no stem nbove upper leaf. 



6. Panicle beginning to bloom at the top. 



7. Flowers all out; siamens beginning to drop. 



8. Seed well set. 



9. Seeii entering the milk state. 



10. Seed becoming doughy. 



11. Seed doughy: becoming dry. 



12. -;eed almost dry; easily crushed. 



13. Seed dry; easily split. " 



AVERAGE RESULTS OF ANALYSES OF ALL VARIETIES OF SORGHUM 

 GROWN AT THE DEPARTMENT OF AGRICULTURE, WASHINGTON, 



IN 1879, 1880, 1881. 



From the geueral averages of the tables of all the varieties of sor- 

 ghum, similar iu general character to the tables already given by way 

 of illustration, the following tables have been prepared, giving the 

 percentages of sucrose, gluco.se, solids not sugar, available sugar, and 

 juice ; as also the specific gravity and the number of separate analyses 

 made under each stage, for the years 1879, '80, and '81 ; and, finally, 

 a general average of all the results for the three years. 



The same results are graphically represented upon the f nir charts 

 which follow, the line for juice being left out iu the chart giving the 

 results of 1879, since, as has been explained iu a previous report, the 

 juice was obtained that year without the aid of a mill, and was so 

 much less in consequence as not to be comparable Avith the results ob- 

 tained the last two years. This final chart comprises, as will be seen, 

 the average results of a total of 4,032 separate analyses of some forty- 

 five varieties of sorghum, and, covering the record of three years' 

 work, the results are the more conclusive. 



AVERAGE RESULTS FOR 1879, 1880, 1881. 



Development. 



First stage 



Second stage 



Third stage 



Fourth stage 



Fifth stage 



Sixth stage 



Scventli stage 



Ei'jrlith stage 



Nintlist.ige 



Tenth stage 



Elcvenili "stage 



Twelfth stage 



Thirtcenih stage .. 

 Fourteenth stage .. 



Fifti'cnth stage 



Sixtei'nth stage. .. 

 Seventeenth stage. 

 Eighteenth stage.. . 

 Nineteentli stage.. . 

 Twentieth stage. . . . 



Per cent sucrose. 



1S70. 1880. 1881 



1.7(5 

 2.9(3 

 3 51 

 4.34 

 5 13 

 G.5II 

 7 38 

 7 09 

 8. 9.5 

 9.98 



10 CO 

 n 18 

 11.40 



11 70 



n 09 



12 40 



13 72 



11 92 



12 08 



89 



1 20 

 1.84 



2 02 

 2-78 



3 00 



4 71 



6 08 



7 4' 



8 7( 

 10 dO 



12 01 



13 06 



13 9S 



14 ;!4 



15 99 

 ].") 94 



10 01 

 ].'> 23 



11 89 



Per cent glucose. 



1879. 1880. ISSl. 



4.0.5 

 5 .55 

 3,87 

 4 47 

 3 00 

 3.27 

 2.81 

 1 58 

 1 40 

 1.10 

 1 74 

 1.12 

 .93 

 .70 

 .82 

 1 50 



4 29 

 4 45 

 4 50 

 4 34 

 4.15 

 3.99 

 3 80 

 3.83 

 3 19 

 2 00 

 2 35 

 2 07 



2 o;) 



1 88 



1 81 



1 04 



1 .50 



1 ,S5 



3 09 



2.31 

 3 24 

 3 35 

 3.41 

 3 41 

 3 09 

 3 88 

 3 09 

 3 70 

 3 ;30 

 2 90 

 2 74 

 2 47 

 2 21 

 2.22 

 ]"84 

 1.72 

 1 .S3 

 1 

 1 



Per cent solids. 



1879. ISSO. 1881 



1.40 

 1 56 

 1 71 

 1 30 

 1 45 

 1 53 



1 42 



2 52 



1 51 



2 93 



3 01 

 2.02 

 3 13 

 3 22 



2 00 



3 13 



1 .75 

 1 80 

 1 78 

 1 91 



1 92 



2 45 

 2 19 

 2 37 

 2.42 

 2 50 



2,83 

 2 82 



2 90 



3 15 



3 32 



4 07 

 .3 42 



3.02 



2 40 

 2 41 

 2 41 



2 90 



3 13 

 2 7S 



2 81 



3 03 

 2 03 

 2 00 

 2 90 

 2 93 

 2 98 

 2 90 



2 8S 



3 01 

 3 20 

 3.01 

 3 05 

 3.83 



