6 



SOME CONDITIONS INFLUENCING THE YIELD OF HOPS. 



VARIATION IN THE YIELD FROM INDIVIDUAL HILLS. 



A wide variation was observed in the yield from individual hills. 

 This ranged from a few ounces in some cases to as much as 18 

 pounds in others. In making the records the weiglit of green hops 

 was taken to the nearest half pound, and the results have been put in 

 tabular form, appearing in Table 11. In the columns marked 

 " Yield " the weight of green hops is given to the nearest half pound, 

 and in the other two columns is given the number of hills^ each of 

 which gave the yield opposite these numbers in the adjacent column 

 to the left. 



Table II. — Number of liills (jiring rariont^ yields of Jiops on, tlic experimental 



acre in California. 



The total yield of this acre was 5,207.5 pounds of green hops, and 

 this divided by 853, the number of bearing hills, gives 6.10-l:-{- pounds 

 as the average production per hill. Of the entire number of hills, 

 473 were below the average and 380 hills were above the average 

 j)roduction. Also, the average j^roduction is only one-third of that 

 reached in the case of a few hills. 



According to the quantity of hops produced the hills may be 

 roughly divided into three classes, or groups: (1) Those yielding- 

 less than pounds, {'2) those yielding from 6 to 12 pounds, and (3) 

 those yielding more than 12 pounds. Tl^e first group consists of 429 

 hills, or 50.1 per cent of the entire number, and these produced only 

 1,380.5 pounds, or 26.5 per cent of the entire yield. The second 

 group has 384 hills, or 45 per cent of the entire number, and the pro- 

 duction Avas 3,2G1 pounds, or G2.G per cent of the entire yield. The 

 third group consists of 40 hills, or 4.7 per cent of the entire number, 

 and the hops produced weighed 566 pounds, being 10.8 per cent of 



[Cir. 56] 



