Journal of Agricultural Research voi. xix. no. i 



MALE BRANCH GROUP (P. 21-22) 

 Male branch index.— Number of primary branches terminating in a staminate 



inflorescence, expressed as a percentage of the total leaves. 

 Male secondaries.— Number of secondary branches terminating in a staminate 



inflorescence on the third branch from the top. 



aucole; group (p. 22-25) 



Double male alicoles. — Number of alicoles or alveoli with two staminate spikelets 

 in the best-developed spike of the pistillate inflorescence, expressed as a percentage 

 of the total number of alicoles in the spike. 



Mixed alicoles. — Number of alicoles with one staminate and one pistillate spikelet 

 in the best-developed spike, expressed as a percentage of the total number of ali- 

 coles in the spike. 



Single female alicoles. — Ntunber of alicoles with a single pistillate spikelet in the 

 best-developed spike, expressed as a percentage of the total number of alicoles in 

 the spike. 



Double female alicoles. — Number of alicoles with two pistillate spikelets in the 

 best-developed spike, expressed as a percentage of the total number of alicoles in 

 the spike. 



AlicolE index. — Nimiber of alicoles with a single pistillate spikelet, expressed as a 

 percentage of the sum of single and double female alicoles in the spike. 



NODES SILKING GROUP (P. 25-26) 

 Nodes silking on third. — Number of nodes producing silks on third branch from 



top. 

 Nodes silking index. — Number of nodes producing silks on third branch, expressed 



as a percentage of the number of nodes on the third branch. 



PROPHYLLARY GROUP (P. 26-27) 

 Prophyllary spikes. — Number of pistillate spikes in the axil of the prophyllum 



of tlie third branch. 

 Length of prophyllary. — Length in centimeters of the prophyllary branch of the 



third branch from the top. 



NUMBER OF ROWS GROUP (P. 27-28) 



Rows in central spike. — Number of rows of spikelets in the central spike of the ter- 

 minal inflorescence of the main culm. 



Rows OF alicoles. — Number of rows of alicoles in the best-developed pistillate spike 

 of the third branch from the top. 



INDEPENDENT CHARACTERS (P. 23-33) 

 Position of best spike. — Position on the third branch of the node bearing the best- 

 developed spike. The nodes were numbered from the base of the branch, the 



branch in the axil of the prophyllum being recorded as zero. 

 Number of alicoles. — Number of alicoles in the best-developed spike of the third 



branch from the top. 

 Number of suckers. — Number of branches on the main culm or on primary branches 



that originated below or near the surface of the grotind. 

 Branch silking first. — Number of branches on the main culm above the branch 



on which silk appeared earliest. 

 Days to pollen. — Number of days from planting to the first production of pollen. 

 Pollen to silk. — Number of days from the first production of pollen to the first 



emergence of silks. 

 Length of internodE on third. — -Length of tlie third branch from the top divided 



by the number of intemodes on the same branch. 



