In this article we will discuss about:- 1. Definition of Seed Dormancy 2. Reasons of Seed Dormancy 3. Natural Breaking 4. Artificial Breaking 5. Importance. Definition of Seed Dormancy: Seed dormancy or rest is the innate inhibition of germination of a viable seed even placed in most favourable environment for germination. Bewlay and Black (1994) have divided seed dormancy into [...]
In this article we will discuss about:- 1. History of Auxins 2. Bioassay of Auxins 3. Functions 4. Uses. History of Auxins: Charles Darwin and his son Francis Darwin (1880) found that the sensation of unilateral illumination was picked up by the coleoptile tip of Canary Grass (Phalaris canarensis). A decapitated coleoptile did not receive the sensation. Coleoptile tip covered [...]
In this article we will discuss about:- 1. History of Abscisic Acid 2. Functions of Abscisic Acid 3. Uses. History of Abscisic Acid: It is also called stress hormone because the production of hormone is stimulated by drought, water logging and other adverse environmental conditions. Abscisic acid is known as dormin as it induces dormancy in buds, underground stems and [...]