... correlated, indicates that the growth conditions weresimilar throughout the branch life time, and supports the calculation of the bifurcation ratio as the slope of the shoot number vs. shoot age relationship ... demonstratingthat the length of mother shoots controlled the branching lessin the infertile site. The ratio of current needle to shoot axis dry mass (g) waspositively related to irradiance in the fertile ... angle,branch length, and frequency of branching modify the aggregation of the foliage on the branches [19, 20, 40, 78], and thereby change the degree of self-shading within the canopy.Because the requirements...