rice: pi^\cticum 781 



Practicum. 



533. Study of thb Rice Plant. — The plant may be studied in the 

 laboratory, or partly in field, as opportunity offers. Compare Honduras, Carolina 

 and Japan varieties. 



1. Height of culm : average of ten culms to tip of upper flowering glume . . . 



2. Diameter of culms : average of ten culms just below raceme . . . 



3. Vigor of plant : strong ; medium ; weak. 



4. Wall of culm: thick; medium; thin. 



5. Foliage: scanty; medium; abundant. 



6. Length of raceme : average of ten racemes from base of lower spikelet to tip 



of upper flowering glume, not counting awn, if any , . , 



7. Compactness of raceme : very open ; open ; medium ; crowded. 



8. Shattering: badly; medium; none. 



9. Color: hull , , . ; cuticle . . . ; endosperm , . , 



10. Density of endosperm : vitreous ; mostly vitreous ; partly vitreous ; largely 



white. 



11. Dimensions of grains: average of twenty-five : length . . .; width . . .; 



thickness , . . 



12. Dimensions of kernel : average of twenty-five : length , , . ; width . . , ; 



thickness . , . 



13. Weight: average of twenty-five: grains , . .; kernels , , ,; percent 



of hulls to grain ~. . . 



14. Weight per bushel : obtained by weight of one pint , , . 



534. Collateral Reading. 



Rice: Its Cultivation, Production and Distribution in the United States and Foreign 



Countries. By Amory Austin. U. S. Dept. of Agr., Div. of Stat. Misc. 



Ser. 6, pp. 7-24. 

 The Present Status of Rice Culture in the United States. By S. A. Knapp. 



U. S. Dept. of Agr., Div. of Bot. Bui. 22 (1899), pp. 21-33. 

 Rice: Preparation, Cultivation, Flooding, Harvesting and Noxious Weeds in the 



Rice Fields. By Wm. C. Stubbs and W. R. Dodson. La. Bui. 61, 2d ser., 



PP- 3^5-392. 

 irrigation of Rice in the United States. By Frank Bond and George H. Keeney. 



U. S. Dept. of Agr., Office of Expt. Sta. Bui. 113, pp. 14-20 ana 60-68, 



