In this article we will discuss about the defence mechanisms of host. Interaction between host and pathogen is a complicated process during which dis-balance host metabolic processes and formation of defence chemicals — phenolic substances take place. With the help of defence chemicals the host tries to repel the attack of the pathogen. These chemicals are not only active against [...]
In this article we will discuss about:- 1. Meaning of Post-Harvest Diseases 2. Classification of Post-Harvest Diseases 3. Types 4. Control. Meaning of Post-Harvest Diseases: The diseases which develop on harvested parts of the plants like seeds, fruits and also on vegetables are the post-harvested diseases. The harvested products may get infected on the way to storage or to market [...]
In this article we will discuss about the meaning and classification of symptoms. Meaning of Symptoms: The manifestation of a disease is known as symptom. After successful penetration, the pathogen colonises on the host, as a result many structural and physiological changes occur within the host, and finally the expression of the disease i.e., the symptom develops. The symptom may [...]