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Field crops, p. 2; Number of cultivated species, p. 2;
Classification, p. 3; Area and value of field crops
in 1899 in U. S., p. 3; Cereals, p. 4; Grasses, p. 6;
Legumes for hay and pasture, p. 6; Legumes for
seeds, p. 7; Forage crops, p. 7; Tubers, p. 8;
Roots, p. 8; Sugar plants, p. 8; Fiber plants, p. 9;
Stimulants, p. 9; Medicinal and aromatic plants,
p. 9; Miscellaneous crops, p. 9; Staple crops of
the United States, p. 9; Character of field crops,
p. 10.
Beginnings of Plant Culture
Possibility of crop production, p. 10; Profitableness
of a given crop, p. 11; Choice of crops, p. 11;
Specialties, p. 12; General farming, p. 12.
Practicum
Collateral Reading
CHAPTER II.
IMPROVEMENT OF FIELD CROPS.
Changes in Farm Crops
The Importance of Plant Breeding
Maize breeding farm, p. 15; Application of principle
14
delayed in plants, p. 15; Sex, p. 16; Difficulty of
control, p. 16; Seed an embryo, p. 16.
Examples of Improvement or Modification in Plants
Examples of definite improvement, p. 18.
Methods of Improvement
Inducing variation, p. 19; Influence of environment,
p. 19; Change of seed, p. 20; Crossing, p. 21;
Selection, p. 21; Power of specific forms to repro-
duce themselves, p. 22; Importance of large num-
bers; p. 23.
Plant Breeder's Advantage
• 24
25
CHAPTER III.-WHEAT.
1. STRUCTURE.
Relationships
Roots, p. 26; Culms, p. 27; Leaves, p. 29; Tiller-
ing, p. 29; Organs of reproduction, p. 30; The
true flower, p. 31; The spikelet, p. 31; The spike,
p. 32; The grain, p. 33; The embryo, p. 34; The
endosperm, p. 35; Aleurone layer, p. 35; The bran,
P. 35; Physical properties, p. 37.
II. COMPOSITION.
Composition.
Water, p. 38; Ash, p. 39; Protein, p. 40; Gluten,
p. 41; Gliadin, p. 42; Glutenin, p. 42.
Relation of Weight per Bushel to Nitrogen Content
Influence of Environment on Composition of Grain
Germination.
38
42
44
46
Species of wheat, p. 47; Einkorn, p. 48; Spelt, p.
49; Emmer, p. 49; Common wheat, p. 51; Club
or square head wheat, p. 51; Poulard wheat, p.
52; Durum wheat, p. 52; Polish wheat, p. 54;
Spring and winter wheat, p. 54.
CLASSIFICATION OF VARIETIES.
PAGE
47
II.
Importance of Variety
55
Best variety, p. 55;
gree wheat, p. 56;
Variety characteristics, p. 57; Variety groups, p. 58.
Desirable Qualities
Variety names, p. 56; Pedi-
Number of varieties, p. 57;
Score card, p. 60; Market classifications, p. 60;
Soft winter varieties, p. 61; Hard winter varieties,
p. 61; Hard spring varieties, p. 62; White varie-
ties, p. 63.
III. IMPROVEMENT OF VARIETIES.
New Varieties
Introduction of foreign varieties, p. 63; Improvement
by selection, p. 63; Varieties through crossing,
p. 64; Possibility of cross-fertilization, p. 64; Law,
p. 65; Importance as a method of improvement,
p. 65; Finding and testing new strains, p. 66.
CHAPTER V.-WHEAT.
1. CLIMATE.
Conditions of Successful Wheat Culture .
Effect of climate upon geographical distribution,
59
63
68
p. 68; Effect upon quality, p. 68; Effect upon
growth, p. 68.
Accumulation of Soil Constituents at Different Stages of
Growth
Winter Killing
Choice of Soil
II. THE SOIL AND ITS AMENDMENTS.
Effect of change of soil on yield, p. 72.
Use of Fertilizers
Indirect fertilization, p. 73; Rotation, p. 74; Carriers
of fertilizing constituents, p. 75; Relative impor-
tance of fertilizing constituents, p. 75; Amount of
fertilizers, p. 76; Time and manner of applying
fertilizers, p. 77.
Farm Manure
Mulching, p. 78.
71
72
77
Depth of plowing, p. 80; Preparing seed bed with- out plowing, p. 8o.
Time of Sowing
Depth of sowing, p. 83; Drilling compared with
broadcasting, p. 84; Quantity of seed per acre,
p. 85; Influence of size of seed, p. 87; Treat-
ment of seed, p. 89; Wheat seeding machinery,
79
81
92
Chess, p. 93; Darnel, p. 94; Cockle, p. 95; Wild
garlic, p. 95; Wheat thief, p. 95; Wild mustard,
P. 95.
Fungous Diseases.
93
Stinking smut, p. 97.
Rust, p. 96; Wheat scab, p. 97; Loose smut, p. 97 ;
96
98
Insect Enemies of Growing Wheat
Chinch bug, p. 99; Hessian fly, p. 100; Wheat bulb-
worm, p. 101; Wheat midge, p. 101; Wheat plant-
louse, p. 102.
Insects Injurious to Stored Grain
Granary weevil, p. 102; Rice weevil, p. 102; Angou-
mois grain moth, p. 102; Wolf moth, p. 102.
102
II. HARVESTING AND PRESERVATION.
Date of Harvesting
Stage of maturity on yield, p. 103; Influence of ripen-
ing upon composition, p. 104; Influence of shock-
ing, p. 104; Method of shocking, p. 105.
Self-rake reaper, p. 106; Self-binding harvester, p.
106; Header, p. 107; Combined harvester and
thresher, p. 108.