XVI INDEX 



Rag-doll test 128-130 



Rainfall, relation to corn growing (see also "Precipitation") 75, 83 



Rainguard of leaf 46 



Rank of countries in corn production 9 



by states in average yield of corn 16 



Registration of corn shipments 287 



Regular warehouses 296-297 



Reid's Yellow Dent 422 



breed characteristics 422 



breeders 425 



history of 422 



Reminder for corn growers 135 



Replanting corn 172 



Roots of corn plant , 38 



brace roots 39 



cap 38 



central cylinder 41 



development of 38-39 



extension in drj' weather 47 



growth of 38-41 



hairs 40 



pericycle 41 



primary roots 39 



root pressures 61 



secondary roots 39 



structure of roots 40 



Rotation of crops 88 



effect of 89-90 



necessity of 88-89 



systems of 93-94 



Roumania, production of corn in 9, 32 



Rust of corn 220 



Rye, acreage of 5-7 



production of 11-12 



valuation of 22-23 



s 



Samp 335 



Sampling corn for inspection 275 



Sawdust box 115-126 



"Scalpers" 312 



Score card for corn 402-411 



introduction of 402 



purpose of 404 



use of 411 



Secondary roots 39 



Seed corn 97-135 



breeders 454-465 



breeding 443-473 



butting and tipping 466 



buying 97-98 



effect of freezing on vitality of 110-112 



effect of moisture on vitality of 110-112 



foreign seed 97, 98, 444 



grading seed 130-133 



harvesting of seed 99-102 



high grade seed 463 



plant selection 101 



pure bred seed 463 



