Table 1.

Straight line equations for the relationship between branch crown radius and root spread radius.

Species	b₀	b₁	r
Southern magnolia	−0.53	3.77a	.98^**
Live oak	1.61	0.36b	.23
Red maple	−0.16	3.06a	.97^**
Honeylocust	−1.02	2.95a	.99^**
Poplar	−0.63	3.08a	.74^*
Green ash	0	1.68a	.99^**

y = b₀ + b₁ x where: y = root radius (m), b₀ = y intercept, b₁ = slope of line, x = crown radius (m), r = correlation coefficient
↵* Significant at the 0.05 level.
↵** Significant at the 0.01 level.