AGRICULTURAL BOTANY 



send up a stem and in time will become a new plant 

 with the characteristics of the parent plant. 



Nearly all plants can be propagated by cuttings, but 

 such propagation is not practicable in all cases. Cur- 



FIG. 77. Rooted Cuttings. 



rants and grapes are commonly increased in this way, 

 as are willows and poplars. 



Cuttings may be made from plants in the autumn and 

 stored during the winter if kept in a place sufficiently 

 moist to prevent the plant's losing water by evapora- 

 tion. Damp sawdust or sand will usually accomplish 

 this. 



Note- As frequent changes of temperature are unfavorable to the 

 development of cuttings, nurserymen have devised what is known as a 

 cold frame to confine the heat of the ground or shut out the heat of the 

 sun when necessary. This consists of a bottomless box, higher on 

 one side than on the other, and covered with glass or muslin painted 



