BESCRIPTIONft OF THE VARIETIES. 23 



color. The pods ari' largo, U to2 inchesin length, about one-half inrh in width, 2 to 3 

 seeded. Seeds large, 7 to 9 mm. wide by 7 to 10 mm. long, round <>r l)n)adly elliptical, 

 somewhat flattened or occasionally spherical, greenish yellow, shiny, paler and duller 

 with age. The seed of later generations is noticeably smaller than that of the earlier 

 ones, probably due to too thick planting of so large a variety and to forcing maturity 

 in a shorter growing season. 



The Tokyo is one of the very best varieties for all-round use. It will give heavy 

 hay and silage crops, is equally good for pasture and cover-crop purposes, and where it 

 matures it gives very good seed yields. Eight plots grown at Washington in two 

 different years averaged S^ Ijushels of seed per acre, in which th(» lowest yi<'ld was 4 

 bushels and the highest 14^ bushels. The Kentucky Agricultural Experiment Station 

 reports a very much higher seed yield, with the weight of green for ge to the acre 1 1 .84 

 and 14.08 tons from two plots, curing to5.44 and 6.16 tons, respectively. T" istoolate for 

 the best results in most Northern States, but it may be replaced there by the Haber- 

 landt variety. 



This variety was named for the Japanese capital, where some of the importations, 

 were secured. 



Numbers and sources of lots grown. — Agrost. No. 468, grown from S. P. I. No. 4914; 

 Agrost. No. 696, grown (m Potomac Flats; Agrost. No. 1171, "Best Green," S. P. I. 

 No. 9409; Agrost. No. 1198, "Late Ita Name," S. P. I. No. 8424, Japan; Agrost. 

 No. 1200, "Medium Ita Name," S. P. I. No. 8423, Japan; Agrost. No. 1298, ■Medium 

 Green," S. P. I. No. 6335, Japan; S. P. I. No. 4914, "Best Green," Japan; S. P. I. 

 No. 5766, grown from No. 4914; S. P. I., No. 6335, "Medium Green," Japan; S. P. I., 

 No. 8423, "Medium Ita Name," .lapan; S. P. I. No. 8424. "Late Ita Name," Japan; 

 S. P. I. No. 9409, grown from S. P. I. No. 5766; S. P. 1. No. 17264, grown from 

 Agrost. No. 1198-1; S. P. I. No. 17265, grown from Agrost. No. 1200-1; S. P. I. No. 

 17266, grown from Agrost. No. 1171-1; S. P. I. No. 17267, grown from Agrost. No. 

 1298-2. 



Yei>i>o\v-Seeded Group. 



ITO SAN. 



Ito San is probably the best known variety of soy bean on the market. The original 

 source of the variety is not known, but it was very probably one of the early importa- 

 tions made by the Kansas and Massachusetts agricultural experiment stations; per- 

 haps by others also. It has been long and widely sold under the names "Yellow," 

 "Early Yellow," "Early White," etc. It is said that the name "Ito San" was given 

 it by Mr. E. E. Evans, of West Branch, Mich. The greatest value of the Ito San lies 

 in its earliness and fairly large yield of seeds. It is too small to yield heavily for hay, 

 silage, etc. It remains, however, one of the most popular varieties on the northern 

 market. 



The Ito San is a rather small, early variety, with slender stems about one-fourth inch 

 in thickness at the base, 12 to 28 inches high, the average being 18 to 24 inches; the 

 Ijranches are long and numerous, ascending or erect, nearly or quite equaling the main 

 stem in height; leaves small to medium, narrow, light green to almost a ])luish or 

 glaucous green; pods scattered along the whole length of the main stem and the 

 branches, slender, 1^ to 1| inches long, three-eighths inch wide, 2 or often 3 seeded. 

 The seeds are small, 5 to 6^ mm. wide, 5i to 7 mm. long, round or slightly elliptical, a 

 pale lemon-yellow, scarcely shiny when fresh, becoming paler and duller with age, 

 hilum occasionally brownish, but normally yellow. 



Ito San commonly matures in from ninety to one hundred days, with the average 

 between ninety and ninety-five days. Occasionally it ripens in less than ninety days, 

 and in cold, wet seasons it will require more than one hundred days. It is 



98 



