Environmental Sciences, asked by Anonymous, 1 year ago

explain briefly secondary growth in Dicot stem

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Answered by 1Angel24
32
Hey mate here is your answer》》

Secondary growth is the formation of secondary tissues from lateral meristems. It increases the diameter of the stem. In woody plants, secondary tissues constitute the bulk of the plant. They take part in providing protection, support and conduction of water and nutrients.

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Answered by iambrainlyhelper
24
most dicot plants exhibit an increase in the Great as they grow older this increase is called as a secondary growth the first tissue involved in secondary growth are to lateral meristems vascular cambium and cork cambium
the vascular cambium present between the xylem and phloem along with the cells of the middle earliest developed the cambial ring the activity of the Cambridge ring produces secondary phloem and secondary xylem on either side during Spring and autumn season cambium produces springwood and autumn wood respectively they together form and annual Rings the secondary xylem can be differentiated into heartwood and the sap wood
the cortical cells develop the secondary meristematic tissue called as the cambium on phellogen on the outer side it gives rise to cause or the phellogen towards the inner side it develops into phelloderm or secondary cortex phellogen phellem and phelloderm collectively called as a periderm.
at certain regions phelogen Cuts of loosely arranged parenchymatous tissue on the outer side rupturing the epidermis forming lens Shepherd openings called as lenticels these permit exchange of gases


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