The following points highlight the seven main organs of flowering plants. The organs are: 1. Roots 2. Stems 3. Leaves 4. Inflorescence 5. Flowers 6. Fruits 7. Seeds. Organ # 1. Roots: Roots differ from stems in the absence of nodes and leaves. Position: Primary - an extension of the radicle of the embryo. Secondary - branches of other roots. [...]
In this article we will discuss about the meaning and theories of ascent of sap. Meaning of Ascent of Sap: Plants lose enormous amounts of water by transpiration. Water is absorbed from the soil and is conducted upwards through roots and stems ultimately to reach the leaves. This becomes possible due to the presence of continuous conducting channels in the [...]
In this article we will discuss about Racemose and Cymose Inflorescence. I. Racemose Inflorescences: i. Raceme: It is a racemose inflorescence in which the main axis goes on producing lateral stalked or pedicellate flowers in acropetal order. Example—Crotolaria (B. Atasi, Fig. 77, A), mustard. A compound raceme, in which the rachis is branched and branches bear the pedicellate flowers in [...]