WHEAT. 



245 



Plot. 



Yield . . 

 Dry matter 

 N. 



P2O5 . . 

 Potash .. 



Grain. 



52-2 bushels. 

 766 lbs. 

 141 lbs. 



7-83 lbs. 



5-22 lbs. 



Stbaw. 



12-96 cwt. 

 1,222 lbs. 



6-2 lbs. 



2-4 lbs. 

 11-92 lbs. 



Total Peoduobu. 



2,364 lbs. 

 1,988 lbs. 

 20-30 lbs. 

 10-23 lbs. 

 17-14 lbs. 



Constituents. 



Percentage. 

 Federation 



Wheat. 



Percentage. 



Federation 



Flour. 



Percentage. 



Federation 



Bran. 



Mature wheat straw has a lower feeding value than barley 

 or oats, but a little better than rye, as the following table 

 indicates : — 



Straw. 



Oats 

 Barley 

 Wheat 

 Eve 



Nutritive ratio. 



. 1 :44-6 



. 1 :46-2 



. 1 :51-7 



. 1:57-9 



Climate. — The most suitable conditions are those in 

 which a moderately moist and cool growing-season merges 

 gradually into a warm, bright and dry ripening season. These 

 favour free stooling and development, the formation of a hard 

 glutenous kernel and evasion from fungous diseases. These 

 conditions are to be found in many coastal regions, as well 

 a.s in the interior of continents ; while the more humid ripen- 

 ing season which results in a softer, more starchy grain, is 

 just as widely encountered, thus making wheat, unlike maize, 

 adaptable to large areas in various parts of the world. 



The wheat areas of South Africa are those having a winter 

 rainfall, chiefly the south-west Cape and Namaqualand. In 

 the parts having a summer rainfall wheat must be grown 

 under irrigation, as the winter precipitation is too small for the 

 growth of wheat on dry-lands. In the eastern Free State, 



