The Small Grains (1916)
by Mark Alfred Carleton, M.S.; 1916
From the preface: After discussing briefly the fundamental principles of plant structure and nutrition, as related to cereals, which subjects may be omitted by those students who have had good training in plant physiology, the four principal cereals [wheat, oats, barley, rye] are treated separately and from the individual plant standpoint, as to their origin, characters, classification, varieties, selection, and hybridization. Thereafter these cereals are treated together in respect to the further subjectsof soil and climatic relations, acclimatization, cultivation, irrigation, weeds, insect and fungus pests, and uses.