64 BULLETIN 698, U. S. DEPARTMENT OF AGRICULTURE. 
TaBLE XXIII.—Agronomic data for White kafir grown at the Amarillo Cereal Field — 
Station during the 8-year period from 1909 to 1916, inclusive. 
[In the statement of yields per acre the bushel is rated at 60 pounds.] 
Row space.| Length of period. 2 2 Seed in— | Yields per acre. 
a | 8 a oe 
; Te pa : J 
Year and C. I. a a b= ha = 2. 
No. : ; = Tau Be A af ° A = ; 
til ler es pein es are ed OM Deke ep yee oS) 
airs | bays Met Sse Pe = k= 7am ee = Wed == le ve == De YEA ens lity =p eas!) 
Per | Per Per | Per | Per 
1909: Ins. | Ins. |Days.|Days.|Days.| cent. | cent. | Feet.| cent. | cent. | cent. | Lbs. | Lbs. | Bus. 
BA eae 355 )| G10," ERO ee aaa. D5 | ABER eect Lae Pete be See eis a (eX Rey, 
1910: | | Ea | 
34D tA Aes 17.1} 9.0| 80] 45] 125] 47.3] 82.9] 3.6] 42.1] 18.9] 45.0 13,089 |1,301 | 10.1 
(ee 17.3] 9.0| 80| 45] 125| 47.9| 76.8] 3.6] 37.9] 16.6] 43.8 [3,109 |1,178| 8.8 
Average.| 17.2] 9.0| 80] 45] 125] 47 6 | 79.4| 3.6] 40.0 | 17.7 | 44.4,|3,099 1, 239 | 9.9 
1911: | 
oh ir fot 30 Rs hl Ryo kU © Wa 5.3 | 42.2 | 24.3 | 57.3 16,474 |2, 754 | 26.3 
S70 pees 8:81 5.5 77 | ate oe azo) es 5.3 | 44.5 | 25.7 | 57.9 |5,519 |2,459 | 23.7 
Average.| 8.5.| 5.6| 77} 47 | 124 | 33.3 | Renee 5.3 | 43.3 | 25.0 | 57.6 [5,996 |2,606 | 25.0 
1912: | 
oo ate ts Bde Sa 9.7| 6.4] 74|. 42] 116] 33.6] 86.0| 3.3| 51.0 | 35.2 | 69.0 |2,800 |1,480 | 16.5 
E(t agg eS 9.1] 6.7| 74] 42] 116] 26.7] 90.2] 3.3] 62.1 | 32.3 | 52.0 |2,500 [1,553 | 13.5 
Average.| 9.4] 6.5| 74| 42] 116] 30.1| 88.1] 3.3 |'56.5 | 33.7| 60.5 |2,650 |1,492 | 15.0 
1913: | | | | | 
1 ei ae 113 78 6S. fs BE | Heer Saas ete Pahl PS Pt OR ee yh 
7 Ae OR | 10.5] 7.2} 65| 31] 96 | 30.7]...... Tepe etsy | ised Folate | i<-<|eeccst|aeee aaa 
Average.| Wied || 725.) 2165, |, S154 96s) 8225) ee eRe Ree Se ee 
Be Se SSS EEE ESE _———— ee ee 
1914: 
OA Sele Sebi 759) | 8 GBH) ee Ts OF | eID. | tze races pees DATs ie 3,560 |...-.- 14.7 
S70h ota: B30 [i 7:2:), 68, |. 123:|-- 98 | h0.01 74-4.) Ses: See oan gs eee 3 560: bs tag 14.3 
Average.| 8.0] 7.2|  68| 23] 91] 11.0] 74.4] 3.8]...... [AWA |e oes 3.560 |.2---- 14.5 
1915: | | 
oe eae Oe 10:2] 6.9| 77|. 49| 126] 31.7] 97.8| 4.8] 42.5 | 35.0| 82.4 16,400 [2,720] 37.3 
1916: 
CT 14:3 | 29:2.) /118 | 971 AnagnsS AS Sul 3-0) ee | Pah a 3. 36Dicao ee 4.0 
The White kafir has much inherent earliness, as is shown by its 
record in 1913 and 1914, dry years, when the duration of the total 
growing period was 96 and 91 days, respectively. The much longer 
duration in all the other years, except 1916, was caused either by 
slow ripening or the delayed maturing of heads which did not com- 
pletely emerge from the boot. In general, it is about 10 days earlier 
than Sunrise kafir and 18 to 15 days earlier than Dawn kafir. , 
The stands obtained have corresponded rather closely to those of 
the Dawn kafir. They are better, therefore, than those of the Black- 
hull kafir, but not as good as those of the Sunrise kafir. The final 
stand, or stalk space, has been very uniform, but never exceedingly 
close. It has varied between 5.6 and 9.9 inches per stalk. The pro- 
portion of suckers has varied from 11 per cent in 1914 to 47.6 per cent 
in 1910. Only in that year, however, has the proportion appreci- 
ably exceeded one sucker to every two main stalks. The height has 
