96 



SEED-TABLES 



Examples of seed mixtures Continued 



No. of 

 Seeds 

 For hay. Heavy loam. 



Red clover 2,790,000 



Alsike 2,121,000 



Timothy 7,089,000 



Red-top 8,000,000 



20,000,000 



Weight of Pure, 



Viable Seed 



Lb. 



10.00 

 3.00 

 6.06 

 1.32 



20.38 



Testing grass seed (Fraser). 



In testing the seed for germination power and purity it is more satis- 

 factory to weigh out a sample of the seed, separate the chaff and inert 

 matter, weigh it, and then proceed to make a germination test of the 

 remainder. For example, if a sample of awnless brome grass contain 

 10 per cent of dirt and chaff, and 75 per cent of the pure seeds are viable, 

 the actual germination power of the sample is 67.5 per cent, or 



75X90 

 100 



= 67.5. 



Number of Tree-Seeds in a Pound 



FRUIT TREES 



About 



Apple 12,000 



Cherry pits 1,000 



Peach 200 



Pear 15,000 



Plum 600 



Quince . 15,000 



Mulberry 200,000 



FOREST TREES 



By count 



Butternut Juglans cinerea 15 



Black walnut Juglans nigra 25 



American horse-chestnut . . . ^Esculus glabra . . . 36 



Hickory (shellbark) .... Carya alba ... . 78 



American sweet chestnut . . Castanea vesca, var. . 90 



Silver-leaved maple .... Acer dascycarpum . . 2,421 



Honey-locust Gleditschia triacanthos . 2,496 



Black cherry Prunus serotina . . . 4,311 



Black ash Fraxinus sambucifolia . 5,629 



American basswood .... Tilia Americana . . . 6,337 



Norway maple Acer platanoides . . 7,231 



Sugar maple Acer saccharinum 7,488 



Barberry Berberis vulgaris 8,183 



Red cedar Juniperus Virginiana 8,321 



Rock elm Ulmus racemosa 8,352 



American white ash .... Fraxinus Americana . . . . . 9,858 



Osage orange Maclura aurantiaca 10,656 



