﻿SOME NEW VARIKTIKK OK KICK. 



15 



This variety matures in approximately '143 days and has produced 

 an average acre yield of 2,500 pounds of paddy and 1,734 pounds of 

 straw. It is not grown on a large acreage in the United States, 

 mainly because its culms are too short to be cut with a binder with- 

 out the loss of some grain, even when the plants produce a normal 

 yield. This loss, of course, does not occur in Japan, where the variety 

 is extensively grown, because the crop is cut with hand hooks. The 

 Shinriki and Wataribune varieties are usually quoted as " Japan 

 rice " in the southern rice markets of the United States. 



COMPARISON OF VARIETIES. 



The stems and foliage of the varieties described, except Delitus, 

 Evangeline, Vintula, and Honduras, retain their green color after 

 the grain ripens. Usually the entire plant of these four varieties 

 matures rapidly, the leaves turning yellow as the grain ripens. 



Uniformity in the size of the seed is strikingly characteristic of 

 the Fortuna, Acadia, Delitus, Tokalon, Wataribune, and Shinriki 

 varieties. The seeds on the lower part of the panicles of Evangeline 

 and Honduras often vary in size. When grown on poor soil, Evan- 

 geline, Honduras, and Blue Eose often produce stunted panicles, 

 bearing imperfect seeds. The dimensions of the seeds of all varieties 

 are shown in Table 1. 



None of these varieties shows complete resistance to the fungous 

 disease (rotten-neck) caused by Piricularia oryzae Br. and Cav. 

 Honduras is very susceptible, and all of them may be seriously af- 

 fected by this disease if they are left uncut too long after maturity. 

 The conditions which produce the straighthead disease have no ef- 

 fect upon Fortuna and Vintula, as so far observed. 



Table 1. — Average dimensions of seeds and kernels of seven new and four long- 

 established varieties of riee grown at the Rice Experiment Station, Croicley, 

 La. 



fThickness=dorsivcntral diameter; width=lateral diameter. 1 



Class and variety. 



Long-gram varieties: 



Fortuna 



Delitus 



Tokalon 



Evangeline 



Vintula 



Salvo 



Honduras 



Medium-grain variety: 



Blue Rose 



Short-grain varieties: 



Acadia 



AVataribune 



Shinriki 



C I. No. 



1344 



1206 

 51 

 1162 

 1241 

 1297 

 1643 



1962 



1988 

 1561 

 1642 



Dimensions (millimeters). 



Seeds (spikelets). 



Length, 



10.1 

 8.9 

 9.3 

 9.0 

 9.6 

 10.3 

 10.0 



8.7 



7.2 

 7.4 

 7.3 



Thick- 

 ness. 



3.1 

 2.9 

 2.9 

 3.1 

 3.1 

 3.1 

 3.4 



3.4 



3.7 

 3.7 

 3.6 



Width. 



2.1 

 2.0 

 2.1 

 2.1 

 2.0 

 2.1 

 2.3 



2.1 



2.5 

 2.5 

 2.3 



Kernels. 



Length. 



7.7 

 7.1 

 7.5 

 7.0 

 7.2 

 7.7 

 8.0 



5.7 

 5.5 

 5.4 



Thick- 

 ness. 



2.5 

 2.4 

 2.4 

 2.6 

 2.6 

 2.4 

 2.8 



3.2 

 3.2 

 3.1 



Width. 



1.8 

 1.6 

 1.8 

 1.8 

 1.8 

 1.9 

 1.9 



2.1 

 2.1 

 2.1 



Losses from shattering may be greatly lessened by the prompt har- 

 vesting of varieties that are known to thrash easify and by the early 



