16 



develop long lateral roots close to the ;-iirface. Of the oaks, red and 

 black oak are the most vigorous and persistent sprouters; v\diite and 

 chestnut oak are fairly good, but rather inferior in tliis respect to 

 the other two species^ Tables 4, 5, and 6, based upon measurements 

 of a great number of sprouts of the different species in stands of 

 diff'erent ages, show the comparative vigor of sprouting of the differ- 

 ent oaks on ridge and slope types. 



Table 4. — Groivth In licloht of oak .sprout-'< on ridge and slope types. 



Age. 



• White oak. 



BlacL 



oak. 



Scarlet oak. 



Po.st oak. 



Spanish oak. 



Eidge. 



Slope. 



Ridge. 



Slope. 



Ridge. 



Slope. 



Ridge, 



Slope. 



Ridge. . Slope. 



Years. 



1 



2 



3 



4 



5 



10 



15 



20 



25 



30 



35 



FecL 



2. 7 



4.0 



7.0 



9 5 



11 5 



20.5 



27.4 



33.2 



37.6 



40.8. 



44.0 



Fed. 



2. 2 



4. 5 



7.8 



10.2 



12.3 



20.5 



26.7 



31.8 



36.3 



37.8 



43.4 



Fa, 



3.1 



6.0 



8.7 



11.5 



14.0 



25.0 



32.8 



38.3 



42.9 



47,4 



51.5 



Feet. 



3.7 



6.8 



9.7 



12.4 



15.0 



25.8 



35.5 



48.0 



52.1 



59.0 



66.0 



Feet. 



3.1 



6.0 



8. 7 



11.5 



14.5 



26. 2 



34.0 



40.0 



44.7 



48.4 



53.6 



Feet. 

 3.1 

 6.0 

 8.7 

 11.6- 

 14.7 

 26.8 

 36.0 

 43.7 

 .50. 2 

 55. 7 

 60.2 



Feet. 



Feet. 



Fed. \ Fed. 



5.5 

 7.45 

 9.4 

 11.3 

 19.2 



4.5 



6.6 



8.6 



10.2 



18.0 



5. 75 ; 6. 85 



8.2 ': 9.7 



10.4 i 12.2 



12.2 14.4 



20.0 22.8 









.... 

























Table .1. — Growtli in d'tanieter of oal: -sprout.s on rldae and slope ti/pes 



Age. 



White oak. 



Black oak. 



Scarlet oak. 



Post oak. 



Spanish oak. 



Ridge. 



Slope. 



Ridge 



Slope. 



Ridge. 



Slope. 



Ridge. 



Slope. 



Ridge. 



Slope. 



)'enrs. 



1 



2 



3 



4 



5 



10 



15 



20 



25 



30 



35 



Inehes.- 



Inches. 



Inches. 



Inches. 



Inches. 



Inches. 



Inches. 



Inches. 



Inches. 



Inches. 



"i.'o"' 



1.23 



2.4 



.3.25 



3.86 



4.22 



4.44 



4.56 



0. 45 

 .85 

 1.1 

 1.37 

 2.65 

 3. 58 

 4.18 



If 



5.5 



0.75 



1.07 



1.42 



1.73 



3.05 



4.1 



4.94 



5. .55 



6. 05 

 6.55 



0. 75 



1.1 



1.44 



1.77 



3.2 



4.37 



5.37 



6.25 



7.05 



7.8 



0. 75 



1.1 



1.44 



1.78 



3 22 



4;.36 



5.28 



6.14 



6. 94 



7.67 



6.75 



1.12 



1.47 



1.83 



3.5 



5. 05 



6.24 



7.26 



8.1 



8.75 



0.28 

 .57 

 .85 



1.1 



2.4 











0.4 



.65 



.95 



1.25 



2. 63 



0.4 • 



.8 

 1.27 

 1.54 

 3.2 































::::.:.. :.. 







„ L„ ■ ^ 



Table 5 brings out also the effect of situation upon the vigor of 

 growth of the sprouts. On slopes when the soil is fresh and fairly 

 fertile the growth is more rapid in both height and diameter than 

 on the drv thin-soiled ridges.. 



INFLUENCE OF AGE UPON SFROUTINCM 



As trees grow older their sprouting capacit}^ decreases, but not in 

 the same degree in all species. Thus, while chestnut still produces 

 numerous and vigorous sprouts from large stumps, the oaks often 

 fail to produce sprouts from stumps above 15 inches in diameter. 

 A number of old cuttings were cruised over in Tennessee and northern 

 Alabama, two or three A^ears after logging, and practically no cases 



[Cir. lis.] 



