Macadamia Nuts in Hawaii: History and Production - ctahr ...

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Figure 51. Lateral root formalion in macadamia showing embedded
bark. Note that roots galher at the cenler to indicale Ihat
the true and only connections to Ihe main trunk are at the
pinpoints where the roots emerge in the seedbed seedling
stage. Essenlially, nutrient transport in Ihese laterals has
to go Ihrough these "narrows," greatly restricling efficiency
of uptake.
Figure 52. Note a conical depression in the center of the root area (orming a pinpoint at the
spot where the lateral root was connected to the tap.