The following points highlight the eight main parts of primary dicot stem in plants. The parts are: 1. Epidermis 2. Hypodermis 3. General Cortex 4. Endodermis 5. Pericycle 6. Vascular Strand 7. Medullary or Pith Rays 8. Pith or Medulla. Dicot Stem: Part # 1. Epidermis: Epidermis is the outermost layer of the stem. It is made up of compactly [...]
The below mentioned article provides study notes on Secondary Growth in Dicot Stem of plants. Primary growth produces growth in length and development of lateral appendages. 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 [...]
The following points highlight the two types of secondary tissues in dicot root of Plants. The types are: 1. Secondary Vascular Tissues 2. Secondary Ground Tissues or Periderm. Type # 1. Secondary Vascular Tissues: Stage I: Conjunctive parenchyma cells lying on the inner edges of the primary phloem bundles become meristematic. They give rise to small quantity of secondary xylem [...]