36 BULLETIN 1467, U. S. DEPARTMENT OF AGRICULTURE 
grain, seed, and warehouse standardization of the State department 
of agriculture. 
The regulations stated that an acceptable source of seed must 
have been used in planting the fields from which seed was to be 
certified: that the previous crop must have been cotton of the same 
variety or some crop other than cotton: that the fields must be iso- 
lated by at least 1 mile from fields of another variety: and that the 
cotton must be handled at the gin in a manner that would prevent 
the seed from becoming mixed. A sliding scale of fees was estab- 
lished with a decreasing cost per ton for large tonnages handled 
as a unit. These regulations were established too late to be applied 
to the crop of 1925 seed, but will undoubtedly prove useful in the 
future. 
It was not considered feasible to restrict cottonseed certification to 
one- variety communities, but the regulations as finally adopted 
recognized the various ways in which cottonseed could become 
mixed, and the restrictions would be much more difficult to meet in 
mixed-variety communities. 
DEVELOPMENT OF THE ACALA INDUSTRY IX 1925 
DISTRIBUTION OF ROGUED SEED FOR PLANTING IX 1923 AND ACREAGE GROWN" 
In 1925. as in 1923 and 1924, the rogued Acala seed for planting 
in the Coachella Valley was sold at cost, and growers who could not 
pay for the seed at planting time were allowed credit. The supply 
of rogued seed was ample for planting the 4.227 acres of cotton 
grown in the valley in 1925. 
The policy of making the rogued seed available to the local com- 
munity at cost, since its adoption for planting the 1923 crop, had 
proved highly successful. This policy was largely responsible for 
the Coachella Valley's success in establishing a one-variety Acala 
community. In 1925 the policy was responsible for carrying the 
community organization a step farther, in that the entire valley 
was not only planted to the same variety, but was planted with seed 
of the same quality or stage in the breeding process of that variety. 
Even in a one-variety community a certain amount of degenera- 
tion will occur in the seed stock. This degeneration is caused by the 
occasional appearance of" different or "off-type" plants, and when 
these off-type plants are harvested with the crop the amount of 
contamination increases from year to year. Degeneration from this 
cause is much slower than where different varieties are allowed to 
mix together, and it can be avoided by planting seed increased from 
typical individual plants and by roguing or removing the off-type 
plants from the seed supply. 
It thus becomes evident that even though only one variety is grown 
in a district, if some of the growers plant their own seed back year 
after year while others plant selected and rogued seed, the com- 
munity will eventually reach the point where it is as badly off as if 
more than one variety were grown. 
For this reason the policy of selling the rogued seed at cost to 
all local growers, whether association members or not. was continued 
in 1925. even though only Acala cotton was grown and a countv 
ordinance and a State law prohibited the planting of any other 
