CONTENTS 



EXERCISES PAGE 



I. Comparative study of seed-testers 2 



II. Seed-testing 6 



III. Seed vitality limited by age 10 



IV. Absorption of water by seeds 12 



V. Germination hastened by soaking seeds 16 



VI. The effect of drought on germinating seeds 18 



VII. Seeds treated with chemicals to hasten germination ... 20 



VIII. The effect of commercial-fertilizer solutions on seeds . . 24 



IX. The action of fungicides on seeds 26 



X. A study of bulbs 28 



XI. A study of corms 30 



XII. A study of soft or green wood cuttings 32 



XIII. A study of leaf cuttings 36 



XIV. A study of root cuttings 38 



XV. A study of hardwood, or dormant, cuttings 40 



XVI. A study of one-eye, two-eye, three-eye, mallet, and heel 



cuttings 44 



XVII-XVIII. A study of buds (Prunus sp.) 

 Plums 



Prunus domestica 48 



Prunus triflora 50 



Prunus americana 50 



Prunus hortulana 52 



Prunus munsoniana 52 



The cherry 



Prunus avium (sweet cherry) 54 



Prunus cerasus (sour cherry) 58 



XIX. A study of buds (Amygdalus sp.) 

 The peach 



Amygdalus persica . 60 



North China race 60 



Persian race 62 



South China race 62 



Spanish race 64 



Amygdalus platycarpa 64 



Peen-to race 64 



XX. A study of buds pomaceous fruits 

 The apple 



Malus sylvestris 66 



The pear 



Pyrus communis and Pyrus sinensis 68 



The quince 



Cydonia vulgaris 70 



