Root Response of 2” to 3” caliper, B&B White Oaks after one growing season to PHC, Inc. Tree Planting Program* at Prospect Park, Brooklyn, NY (Doccola, 1999)

Planting Date:

Treatment

Fine Root

Wt. (gm)

% Ectomycorrhizae by:

Pt       Native     Total

Root Surface

Area Index1

 

 

Chestnut Oak (Quercus prinus)

March: Control

0.44

0

20

20

1.1

March: Program

2.30

33

19

52

10.3

 

 

Swamp White Oak (Quercus bicolor)

April: Control

0.79

0

29

29

3.1

April: Program

6.39

39

17

56

28.3

May: Control

1.45

0

31

31

4.6

May: Program

5.96

36

16

52

34.8

* Tree Planting Program = Root ball injected with MycorTree® Injectable, TreeSaver®  transplant inoculum placed in backfill, and root ball and backfill area sprayed with YuccahTM before mulch placement. All trees were mulched and irrigated weekly during sever drought.

 

1Root Surface Area Index = Total % ecto. X Root Wt.  = Index

                                                                  10                                      

 

 

The table illustrates the effect of mycorrhizal inoculation on the root growth of transplanted B&B oaks: Increased root growth, increased percentage of mycorrhizal roots, and dramatically increase in the surface area for root absorption.  Internal PHC R&D.

© 2000 PHC Royalty Corp.