INDEX 



445 



Com (Contimied). 

 flower, 157. 



flowers, pistillate, 158. 

 fungous diseases, 270. 

 green-manures for, 222. 

 growing season for, 215. 

 growth, 165. 



factors of, 166. 

 harvesting, cost of, 257. 



effect on yield, 253. 



methods of, 252.' 



time of, 251. 

 harvesting machinery, 258. 

 high ears, breeding for, 200. 

 husking, 260. 



hybridization, objects of, 203. 

 improving, methods of, 192. 

 inbreeding defined, 204. 

 inbreeding, effects of, 206. 

 insect enemies, causes, 265. 

 interculture, objects of, 245. 

 kernels, 159. 

 leaf surface, 163. 

 leaf surface, figuring, 163. 

 leaves, 156. 



leaves, growth of, 167. 

 lime for, 222. 

 ^ Usting, 240. 

 low ears, breeding for, 200. 

 low yield in cotton-belt, rear 



sons for, 238. 

 manures for, 221. 

 mass selection, 193. 



value of, 193. 

 measuring in crib, 263. 

 modifibation of soils for, 212. 

 narrow breeding defined, 204. 

 nativity, 173. 

 origin, biological, 174. 

 pedigree selection, 194. 

 physiology of, 161. 

 plants, degrees of relation- 

 ship among, 204. 

 planting, 238. 



Corn (Continued). 



depth of, 242. 



methods of, 239. 



time of, 241. 

 plant-food removed by, 223. 

 plowed land, treatment of, 



234. 

 plowing, depth of, 232. 

 plowing, time of, 231. 

 preparation of plowed land 



for, 234. 

 rainfall, influence of, 214. 

 recessive qualities in, 206. 

 reproduction, 168. 

 ridging land for, 236. 

 roots, adventitious, 153. 

 roots, growth of, 166. 

 roots, primary, 151. 

 roots, structure of, 153. 

 roots, temporary, 150. 

 root-system, 150. 

 rotation, place in, 219. 

 rotations suggested for, 220. 

 seed-bed, preparation of, 230. 

 seed, testing, 238. 

 selection, 192. 

 shocking, 258. 

 shredding, 261. 

 shrinkage in storage, 262. 

 smut, 271. 

 soil adaptations, 211. 

 soils and fertilizers, 224. 

 soils not adapted to, 212. 

 soU type and, crop variety, 



213. 

 southern varieties, defects in, 



190. 

 spacing, 244. 

 stalks, methods of destroying, 



230. 

 stand, importance of, 243. 

 stems, 153. 

 stems, growth of, 167. 

 stems, structure of, 154. 



