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IV.
Weeds.
WEEDS, FUNGOUS DISEASES AND INSECT ENEMIES.
Fungous diseases, p. 306; Insect enemies, p. 307.
Oats for human food, p. 309; By-products, p. 310.
II.
PRODUCTION AND MARKETING.
Oat Crop of the World
Oat crop of the United States, p. 310; Progress of
oat production, p. 311; Yield per acre, p. 311;
Center of production, p. 312; Export of oats, p.
312; Commercial grades, p. 313.
Method of cross-fertilization, p. 314; Plant in the
field, p. 314; Mature dried plant in laboratory, p.
315; Soil fertility in relation to oats, p. 315; Influ-
ence of size of seed on early stages of plant growth,
p. 316; Influence of treatment of seed upon ger-
mination, p. 316.
Collateral Reading
CHAPTER XXI.-BARLEY.
I. STRUCTURE AND COMPOSITION.
Relationships
The plant, p. 318; Inflorescence, p. 318; Grain, p.
319; Hull, p. 320; Character of the endosperm, p.
320; Embryo, p. 321.
Composition.
Weight per bushel, p. 321; Qualities for malting, p.
322; Germination, p. 323.
321
Species
II. VARIETIES.
Two and six-rowed varieties, p. 325; Winter and
spring varieties, p. 326; Varieties, p. 326; Breed-
ing barley, p. 328.
III. CLIMATE AND SOIL.
323
Rate of seeding, p. 333; Time of sowing, p. 333;
Seed selection, p. 334; Harvesting, p. 334; Thresh-
ing, p. 335.
II. FUNGOUS DISEASES AND INSECT ENEMIES.
Fungous Diseases.
Insect Enemies
III.
USE.
332
Use for malting, p. 337; By-products, p. 337.
Barley Crop of the World
Barley crop of the United States, p. 339; Barley crop
of Canada, p. 339; Center of barley production,
p. 340; Yield per acre, p. 340; Exports and im-
ports, p. 340; Commercial grades, p. 340.
338
The plant, p. 342; The grain, p. 342; Soil fertility
in relation to barley, p. 343.
The plant, p. 345; Composition, p. 346; Varieties,
p. 347; Climate, p. 347; Soil, p. 347; Rotation,
p. 348; Rye as green manure, p. 348.
Enemies of rye, p. 349; Harvesting, p. 350; Use,
p. 351; Rye as a soiling crop, p. 351; By-products,
P. 352.
Rye Crop of the World .
Rye crop of the United States, p. 353; Center of
production, p. 354; Yield per acre, p. 354; Com-
mercial grades, p. 354.
History
Practicums
Influence of specific gravity upon germination, p.
355; The study of the plant, p. 355.
345
34)
354
355
CHAPTER XXIV.-RICE.
I. STRUCTURE AND VARIETIES.
The plant, p. 358; Grain, p. 358; Composition, p.
359; Varieties, p. 359.
Water supply, p. 364; Amount of water required,
p. 365.
Sowing, p. 366; Application of water, p. 367; Drain-
age, p. 368; Cultivation, p. 368.
Weeds
IV. ENEMIES.
Fungous diseases, p. 370; Insect enemies, p. 370;
Birds, p. 371.
CHAPTER XXV.-RICE.
I.
HARVESTING AND USE.
Time of Harvesting
Method of harvesting, p. 372; Threshing, P. 373;
Use, p. 373; Preparation for use, p. 374; By.
products, p. 376.
360
361
363
366
• 372
Production of rice in the United States, p. 378; Yield
per acre, p. 379; Marketing, p. 379.
Relationships, p. 382; The plant, p. 383; Inflores-
cence, p. 383; Grain, p. 384.
Improvement of varieties, p. 386; Germination, p.
387.
Time of planting, p. 389; Rate of planting, p. 389;