Barly Development of Chestnut Sprouts. 39 



the same sprouts during the same years is striking, since they 

 show a decrease in the amount of height growth for the two 

 years of 43.5 per cent, and 23.7 per cent, respectively. 



Annual Height Growth of Sprouts. — The Chestnut is one of 

 the more fastidious species in respect to its natural surroundings, 

 and the total amount of growth during any period of years in 

 early life is largely determined by the favorableness of the situ- 

 ation. There is however a relation between the amount of 

 growth during the first and the succeeding years which is much 

 less variable, hence the comparative height growth made during 

 the first, second and third years under various conditions was in- 

 vestigated. 



/. Sprouts from Stumps of Seedling Trees (Penna.). — The 

 amount of growth in height for each year was measured on 

 100 three-year old sprouts, taking only the 3 dominant sprouts 

 on each stump. A variety of ages of parent stumps was repre- 

 sented. The general site was Quality I ; Density, 2-4. The rate 

 per cent, is based on the growth of the first year. 



Period. Growth in Height. Rate. 



1 st year 6.87 feet 100 % 



2nd " 2.78 " 40.4% 



3rd " 2.12 " 30.8% 



2. Sprouts from Coppice Parent Stumps (Conn.), a. Average 

 Good Situation. — These are sprouts after several generations of 

 ancestors. They represent the thriftiest average stock to be 

 found in Southern New England, and were growing in Bottom- 

 land type Quality I ; Density, 4. 



Period. Growth in Height. Rate. 



1 st year 5.69 feet 100 % 



2nd " 2.62 " 46.5% 



3rd " 2. 11 " 37-2% 



b. Average Poor Situation. — Here the natural quality of the 

 site differentiates the situation — the species occurred in about the 

 same proportion of mixture. The site was a warm S. E. ex- 

 posure of moderate slope, unfavorable soil depths and soil mois- 

 ture. Type : Average Hardwoods ; Quality II to III ; Density, 

 2-4. 



