For many students, the concept of secondary growth in dicot stems is a hurdle. B.P. Pandey’s explanation of the vascular cambium, cork cambium, and the formation of annual rings (growth rings) is considered one of the clearest explanations available in Indian academic literature. The text walks the reader through the formation of bark, heartwood, and sapwood with ease.
They are legal, updated, and often contain interactive elements that B P Pandey’s print-oriented book lacks.
This is the most difficult topic for students (vascular cambium, annual rings, bark). Pandey’s sequential diagrams are excellent. Use the PDF (if you have a legal copy) to zoom in on the cross-sections.
