The following points highlight the three main biochemical changes during germination. The changes are: 1. Respiration 2. Protein and Nucleic Acid Synthesis 3. Mobilization of Stored Reserves. Biochemical Change # 1. Respiration: In the imbibed seed, all the three respiratory pathways, viz., glycolysis, pentose phosphate pathway and citric acid cycle are active in varying degrees. These play a vital role [...]
The following three points will highlight the three main types of seed germination. The three main types are: (1) Hypogeal Germination (2) Epigeal Germination and (3) Vivipary (Viviparous Germination). Type # 1. Hypogeal Germination: In this kind of germination, the cotyledons do not come out of the soil surface. In such seeds the epicotyl (i.e., part of embryonic axis between [...]
The process of seed germination includes the following five changes or steps. Such five changes or steps occurring during seed germination are: (1) Imbibition (2) Respiration (3) Effect of Light on Seed Germination(4) Mobilization of Reserves during Seed Germination and Role of Growth Regulators and (5) Development of Embryo Axis into Seedling. (i) Imbibition: The first step in the seed [...]