30 BULLETIN 1155, U. S. DEPARTMENT OF AGRICULTURE. 
large stalks, wide leaves, and long kernels. The short-grain and 
medium-grain rices usually stool more heavily than the long-grain 
varieties. 
In the Southern States the rice acreage consists largely of medium- 
grain rices, Blue Rose being the leading variety. The long-grain 
rices, of which Honduras is the leading variety, rank second in acreage. 
Only a small acreage in Louisiana, Texas, and Arkansas is devoted 
to the short-grain rices, of which Wataribune is the leading variety. 
In California about 98 per cent of the rice crop is of the short-grain 
varieties. Many varieties of long-grain, medium-grain, and short- 
grain rice have been tested for a number of years in comparative 
experiments at the Biggs Rice Field Station. 
VARIETIES GROWN ON TENTH-ACRE PLATS. 
Table 23 shows the yields of 35 Varieties and strains of rice grown 
at the Biggs Rice Field Station during the 9-year period from 1913 
to 1921, inclusive. In 1913, 1914, and 1915 the varietal experiment 
was conducted on new land, in 1916 and 1917 on fallowed land that 
had produced one crop of rice, in 1918 and 1919 on fallowed land that 
had produced two crops of rice, and in 1920 and 1921 on fallowed 
land that had produced three crops of rice. The seed bed and stands 
were good each year. During the 9-year period from 1913 to 1921, 
inclusive, 27 varieties and strains of short-grain rice were grown, 4 of 
medium-grain rice, and 4 of long-grain rice. The short-grain and 
medium-grain rices are grouped into early, midseason, and late varie- 
ties, and the long-grain rices into midseason and late varieties. 
The 35 varieties grown during the 9-year period from 1913 to 
1921, inclusive, are grouped as follows: 
Short grain : 
Early group.— Spagnuolo (C. I. Nos. 1582 and 1585), Novarese (C. I. No. 1598), 
Colusa (C. I. No. 1600), C. I. No. 1992, Swamp (C. I. No. 2008), Benlloch 
(C. I. No. 2052), and Sue Hero. 
Midseason group.— Butte (C. I. No. 1564), Fukuvama (C. I. No. 2293), 
Kokuryo-Miyako (C. I. No. 2335), and Selections Nos. 161, 175, 204, 209 
(Tokyo), 1561-1 (Caloro), 1561-2, 1561-3, and 1561^. 
Late group.— Makuno Uchi (C. I. No. 1308), Wataribune (C. I. No. 1561), 
Omachi (C. I. No. 1573), Shinriki (C. I. No. 1642), Takenari (C. I. No. 
2295), Tse-Nishiki (C. I. No. 2332), and Selections Nos. 114 and 115. 
Medium grain: 
Early group.— Pilit (C. I. No. 81). 
Midseason group. — Early Prolific. 
Late group.— C. I. Nos. 1241 and 1258. 
Long grain: 
Midseason group. — Selection No. 113. 
Late group.— Honduras (C. I. No. 1643), Carolina White (C. I. No. 1644), 
and Carolina Gold (C. I. No. 1645). 
In favorable years the long-grain varieties yield well, but they 
are not as well adapted to California conditions as the short-grain 
rices. 
During the 3-year period from 1913 to 1915, inclusive, when 
grown on new land the short-grain group, represented by Wataribune, 
produced the highest average yields; the short-grain midseason 
group, represented by Butte, ranked second; the medium-grain 
early group, represented by Pilit, ranked third; the long-grain late 
group, represented by Carolina Gold, ranked fourth; and the short- 
grain early group, represented by Spagnuolo, ranked fifth in average 
yield per acre. 
