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Chapter: 11th Botany : Chapter 10 : Secondary Growth

Secondary Growth in Dicot root

Secondary growth in dicot roots is essential to provide strength to the growing aerial parts of the plants.

Secondary Growth in Dicot root

 

Secondary growth in dicot roots is essential to provide strength to the growing aerial parts of the plants. It is similar to that of the secondary growth in dicot stem. However, there is marked difference in the manner of the formation of vascular cambium.

 

The vascular cambium is completely secondary in origin. It originates from a combination of conjunctive tissue located just below the phloem bundles, and as a portion of pericycle tissue present above the protoxylem to form a complete and continuous wavy ring. This wavy ring later becomes circular and produces secondary xylem and secondary phloem similar to the secondary growth in stems.





Differences Between Secondary Growth in Dicot Stem and Root




 

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11th Botany : Chapter 10 : Secondary Growth : Secondary Growth in Dicot root |


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