PROCESSING SEED OF GRASSES AND OTHER PLANTS t3 
Data available for processing one 5,588-pound lot of tall oatgrass 
show the cost was 85 cents per hundred pounds, which corresponds 
closely with the cost of processing reported for this species in table 3. 
It should be pointed out again that these costs are based on direct 
charges only and on the weights of the original seed, with a reasonable 
prorated addition for supervision; hence their essential value lies in 
their use in direct comparisons between species. Nevertheless, the 
cost of processing is low, especially when considered in relation to the 
improvement in quality and the greater ease in planting. 
DEAWNING OTHER SEEDS 
The processing of alfileria and virgins-bower seed was easily and 
successfully accomplished, and the processed seed was much superior 
to the untreated seed (table 3). Injury was low, loss in weight was 
almost entirely in inert matter, and purity was markedly increased. 
More important still was the resultant increase in germination, due 
to the scarification accomplished by the milling. Increases of 38.10 
and 27.88 in the percentage of live pure seed of alfileria and virgins- 
bower, respectively, with 98 and 100 percent of the seed deawned, 
FiaurRE 7.—Seed of virgins-bower (Clematis ligusticifolia) before (A) and after 
(B) it was processed to remove the persistent styles. 
ereatly facilitated the handling of these seeds in the field and in the 
nursery. Had increases in the number of seeds per pound and the 
weight per bushel been determined, they cnc lew bytes would have 
equalled or exceeded the corresponding increases in the grass species. 
The effect of processing seed of virgins-bower can be seen in figure 7. 
The cost of processing the seed of alfileria and virgins-bower was 
$1.18 and 92 cents per hundred pound respectively. These costs 
are within the limits obtained for grass seed and are justified by the 
improvement in the seed. 
