825 



MAIZE 



Planters, use of, 386. 

 Planting, 374. 



— before ploughing, 396. 



— depth of, 395. 



— distance of, 388, 761. 



— effect of, on yield, 384. 



— time of, 382, 749. 



— to avoid stalk-borer, 443. 

 Plants, Fj, F s , 233, 234. 

 Ploughing by steam, 375. 



— depth of, 374. 



— preparation after, 377. 



— time of, 374. 



— under the stalks, 442. 

 Plumule, 70. 



Pods, development of, 191. 

 Pollen, 97. 



— collecting, 231. 



— grains, 96. 



— tube, 106. 



— vitality of, 101. 

 Pollination, 85, 97, 104, 105. 

 Porcupine or Yster-vark, 433 

 Portuguese wheat, 14. 

 Potassium, 372. 



Potchefstroom, comparative experi- 

 .ments at, 336. 



— rainfall at, 338. 



— relative yields of breeds at, 335. 



— summary of breed tests, 334. 

 Poultry, maize for, 729. 



Power, oxen and steam, etc., 403. 

 Preservation for stock food, 737. 

 Pretoria Conference, 532. 

 Prices, S. African, 502, 



— American and La Plata maize, 512. 



— cause of abnormal, 525. 



— comparative, 503. 



— controlling factors, 517. 



— effect of, in stimulating trade, 524. 



— English, 511. 



— European, 511. 



— local, 501. 



Prizes, rules for awarding, 236, 244. 

 Production in S. Africa, 127. 



— in U.S.A., 4. 



— rapid increase in, 505. 



Products, fermentation, of the grain, 

 698. 



— importance of maize, 782. 

 Propagation, method of, 226. 

 Protandry, 108. 



Proteids of maize grain, 648. 

 Protein, 646. 



— changes in, due to ensiling, 758. 



— content, 664, 665. 



— distribution in maize, 647. 



— obtainable from maize grain, 647, 



670. 

 Protogyny, 107, 108. 

 Protoplasm, 67. 



Pulling of fodder, 460. 



Pure seed, necessity for, 158. 



Purple colour of aleurone layer, 179. 



Radicle, 70. 



Railway rates, American, 557. 



Government regulations, 545. 



Rainfall, 37. 



— at Potchefstroom, 338. 



— of S. Africa, 40. 



Rapoko (Eleusine Coracana), 13. 

 Ratio, monohybrid, 182. 

 Ratios, dihybrid, 182. 



— nutritive, for different animals, 754. 

 — ■ trihybrid, 184. 



Ration, importance of a balanced, 753. 

 Rations for dairy cows, 717. 

 Rats in maize stores, 497. 

 Recessive allelomorph^, 172. 

 Recessives, extracted, 168. 

 Reciprocal crosses, 231. 

 Red cob-colour, 191. 



— rust of maize, 408. 

 Reed-rat, 433. 



Reproduction of characters, 162. 

 Repulsion and coupling of characters, 



174. 

 Resistance to disease, 156. 



— to drought, 156. 

 Rhodesia, breeds grown in, 333. 

 Ripening period, 94. 



Rocky Mountain zone, 49. 

 Roller mill process, 640. 

 Rooibloem, Striga lutea Lour., 423. 

 Root, 6g, 79. 



— and its functions, 74. 

 Roots v. maize silage, 751. 

 Rose-chafers, 450. 

 Rotation of crops, 355, 421. 

 Rotations in Transvaal, 359. 



— with maize in other countries, 358. 

 Rots of maize, 413. 



Rous, 15. 



Rows, effect of number of, 152. 



— four-rowed ears, 206. 



— increased yield by number of, 151. 



— number in each breed, 114. 



— numbers, inheritance of, 199, 204, 



205. 



— straightness of, 256. 



— twisted, 115, 116, 117. 

 Rubber filler, manufacture of, 785. 



Sahara, 57. 



Sale by sample, 617. 



Salt, addition of, for silage, 762. 



Samp, 642, 688. 



Sample, sale by, 617. 



Sarracen's corn, 15. 



Score card for judging, 246, 250, 267. 



Scutellum, 70. 



