After reading this article you will learn about:- 1. Meaning of Seed Dormancy 2. Ecological Significance of Seed Dormancy 3. Types 4. Causes 5. Effects. Meaning of Seed Dormancy: Dormancy is a delaying mechanism which prevents germination under conditions which might prove to be unsuitable for establishment. As long as the seed remains viable the possibility exists that it may [...]
The following points highlight the top two exercises to study germination of dormant and non-dormant seeds. Exercise 1: To show the normal process of germination of seeds of castor and pea. Requirements: Seeds of castor and pea, pots, garden soil, water. Normal Germination Process: Put some castor and pea seeds in the properly moistened garden soil filled in the pots [...]
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 [...]