Bioniac

In this post we are going to discuss about the Morphology of Flower, Fruit and Seed. For the post of Morphology of Root, Stem and Leaf, Click  here . The   Inflorescence : •A flower is a modified shoot wherein the shoot apical meristem changes to floral meristem. •Internodes do not elongate and the axis gets condensed.  •The apex produces different kinds of floral appendages laterally at successive nodes instead of leaves.  •When a shoot tip transforms into a flower, it is always solitary.  •The arrangement of flowers on the floral axis is termed as inflorescence.  •Depending on whether the apex gets developed into a flower or continues to grow, two major types of inflorescences are defined – racemose and cymose.  •In racemose type of inflorescences the main axis continues to grow, the flowers are borne laterally in an acropetal succession. •In cymose type of inflorescence the main axis terminates in a flower, hence is limited in growth. The flowers ar...

In this post we are going to discuss the Morphology of Root, Stem and Leaf. For the post of Body Fluids, Click  here . The   Root : •In majority of the dicotyledonous plants, the direct elongation of the radicle leads to the formation of primary root which grows inside the soil. •It bears lateral roots of several orders that are referred to as secondary, tertiary, etc. roots.  •The primary roots and its branches constitute the tap root system, as seen in the mustard plant.  •In monocotyledonous plants, the primary root is short lived and is replaced by a large number of roots. These roots originate from the base of the stem and constitute the fibrous root system, as seen in the wheat plant.  •In some plants, like grass , Monstera and the banyan tree, roots arise from parts of the plant other than the radicle and are called adventitious roots .  •The main functions of the root system are- i)  absorption of water and minerals from the soil ii) ...