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Journal of Agricultural Research voi. xxvii, no . 8 
22. Length of 9 portion of best inflorescence. —The length in 
centimeters of the pistillate portion of the terminal panicle of the best 
inflorescence. In teosinte this character would rarely exceed 5, while in 
the strain of maize used in these hybrids it would be about 20. 
23. Number of branches on best inflorescence. —The number of 
branches in the terminal panicle of the best lateral inflorescence of the 
main culm. In teosinte there would be from 3 to 10 such branches, in 
maize none. 
24. Rows in terminal spike of best inflorescence. —The number 
of rows of alicoles in the terminal spike of the best inflorescence. In 
teosinte there are 2, in the strains of maize used, 6 to 10. 
25. Position of best spike. —The position of the best spike of the 
lateral inflorescence. If borne in the axil of the prophyllum of a lateral 
branch, the spike was recorded as 1, if borne as the terminal spike, as 2, 
if at some intermediate node as 3. In teosinte this would be 3, in maize 
1. In the ramose hybrid these positions were recorded as 0, 1, and 2. 
26. Length of best spike. —Length in centimeters of the best single 
spike produced on the best lateral inflorescence of the main culm. In 
teosinte this length would be about 5 cm., in maize about 20. 
27. Number rows of alicoles on best spike. —The number of rows 
of alicoles on the best spike. In teosinte the number of rows always 
would be 2, in maize 6 to 10. 
28. Number double 9 alicoles. —The number of double female 
alicoles on the best spike. In teosinte there would be no double female 
alicoles; in maize all would be of this type. 
29. Number single 9 alicoles. —The number of single female 
alicoles on the above spike. In teosinte there would be from 5 to 10 
such alicoles, in maize none. 
30. Number of spikes in prophyllary. —The number of spikes 
borne on the branch in the axil of the prophyllum of the best lateral 
branch of the main culm. In teosinte the number of spikes would be 
from 3 to 8; in the strains of maize used in these hybrids there would be 
no such branches. 
31. Days To pollen. —The number of days from planting until the 
first pollen was shed. The number of days would vary with the time of 
planting, late planting resulting in a shortened period. At the time 
these plantings were made teosinte required 184 days to anthesis, while 
the strains of maize used in these hybrids required 75 to 85 days. 
32. Days to silk. —The number of days from planting until the first 
silks appeared. As with days to pollen, this period is influenced by the 
time Of planting. In teosinte 178 days were required; in maize 80 to 90 
days. 
33. Days pollen to silk. —The number of days elapsing after the 
first pollen was shed until the first silks appeared. Teosinte is pro- 
terogynous (the silks appearing before the pollen is shed) while the 
crinkly form of maize is proterandrous (silks appearing after the anthesis). 
In the first generation of the crinkly hybrid the plants were proterandrous 
by a mean number of days of 2.08, while the second generation plants were 
proterogynous by a mean of 2.04 days; this is expressed in Table I as 
— 2.04. Teosinte is proterogynous by an average of 6 days, while maize 
is proterandrous by from 2 to 6 days. 
34. Degree of crinkly. —An estimate of the degree of wrinkling of 
the leaf blades. The estimate was made on a scale of 0 to 9, smooth 
leaves being recorded as zero. 
