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 [...]
In this article we will discuss about the description of pea plant with diagram. Pea plant (Fig. 220) is a common annual herb cultivated during the winter for the seeds. It is a weak plant and climbs with the help of tendrils. The roots are infected by nitrogen fixing bacteria and they form characteristic nodules. Leaves are pinnately compound (imparipinnate), [...]