CEREAL EXPERIMENTS AT DICKINSON, N. DAK. 33 
puted annual and average yields of these varieties are given in 
Table XVII. 
TABLE XVII.—Annual and average yields of seven standard varieties of barley 
grown at the Dickinson substation, 1907 to 1913, inclusive. 
[The groups and varieties are arranged according to their actual and computed average yields.] 
Yields per acre (bushels). 
| 
Average. 
\ | I 
| | | 
me ne Group and variety. | | | | ae a RUB 
‘ i yo | 68 years,| 5 years,| 4 years 
1907 | 1908 | 1909 | 1910 | 1911 | 1912 | 1913 1907 to | 1908 to | 1909 16, 
1911 1911 i9!1 
and and and 
1913. 1913. 1913. 
ACTUAL YIELDS. | 
2-rowed hulled: 
531 PQ MM CHEM 2 ees ace oe Be AS aoe 4e Loe 239s 2ni 30. Olesen 34. 4 33.6 
187 Svanhalse eres re ke ea shes 39.4 | 44.9 | 34.8 a2 eo. Arras (a Reon A 33.7 32.3 
532 IP TUTTAAS ee Eee Rae JOST ES Oeil COOume liao ala Woe |e aos: (lesen 31.5 32.1 
203 18 enaUaehe sacar ens aenonae 46.8 | 28.5 | 39.8 | 34.8 |°17.0 | 46.0 | 31.4 331 30.3 30.8 
6-rowed hulled: 
575 Giatanlicreee serie. x ue BOR Olea DWE OR O4. Dil SON ane er, 27.5 28.3 26.6 25.5 
863 Manchuria..........--- TOMO FMA T OU ROO clu eSe Omer Sees 30.6 23.5 24.9 24,2 
6-rowed naked: 
262 Nepal sees ee ae sea ADO OIA 24a Wi Q8r On| eran li ual 20.9 2302 19.7 19.1 
COMPUTED YIELDS. 
2-rowed hulled: 
531 TB Uewan aye aveyauy 5 Ss ie Meee LP AE Talons pelos oale mee BON Ose ie eel Rear eeetas 33.6 
187 SIV UTIL Sages OTR FeO fic) AGES GAC See Scik sawe as AQ 0), | tes Bese Us eel ee 32.4 
203 TE OU ANS ee Sik eer NN ae arya RO MOA FO 46.0 | 31 TOSOGK ae Preys oe (petra baal arat gi shea 30.2 
532 |« NE TpTTIS eyecare me il ene ENA ok SAO SoHo he Oe Slee AQ ESS Wei Ses | Sales aie 30.1 
6-rowed hulled: 
575 Gata eee eee NR eos Wye a SUBZMIESS Oo ORO eeeas D8) Dis eee NG Basia steer 26.9 
863  Manchiltnlates se ah le Fo ee Dis Sal Qa STi Os llamas SOM Gas eer ae Net saneedeaice 21.6 
; 6-rowvwed naked: 
262 ING Peles ee reece ie aye fos Cece Sy BOL PAT Bs |PeAS) He el aes Pap aegay'a| (eee aioe re, | Aas elt 21.3 
| 
1 For comnarison, the yield of this naked variety is given in bushels of 48 pounds. The actual yield in 
bushels of 60 pounds, the standard weight, would be one-fifth less. 
Table XVII includes four varieties of 2-rowed hulled, two of 
6-rowed hulled, and one of 6-rowed naked barley. The 2-rowed 
barleys have outyielded the 6-rowed in all the years they have been 
tested. In a 5-year period (1908 to 1911 and 1913) the two leading 
2-rowed varieties have an actual average yield 34 per cent greater 
than that of the two leading 6-rowed hulled varieties and 75 per 
cent greater than that of the 6-rowed naked variety. In the four 
years 1909 to 1911 and 1913, the average actual yield of the leading 
2-rowed variety is 32 per cent greater than that of the leading 
6-rowed hulled variety and 76 per cent greater than that of the 
6-rowed naked variety. The average computed yield of the leading 
2-rowed variety for the same period is 25 per cent greater than that 
of the leading 6-rowed hulled variety and 58 per cent greater than 
that of the naked variety. 
