Biosynthesis of Jasmonic acid, Salicylic acid & Brassinosteroids & their physiological roles

Brassinosteroids: Brassinosteroids are a recently discovered group of steroids that have distinct growth-promoting activity in some plants especially in stems. These compounds were first isolated in 1979 from bee collected pollen of rapeseed (Brassica napus). Undoubtedly, Brassinolide was the first isolated brassinosteroid. More than 70 brassinosteroid compounds have been isolated from plants. Site of synthesis: […]

System of planting of horticultural crops

Square system of planting: It is a widely adopted method of planting and is easy to perform. In this system, we divide the plots in squares and then we plant trees at the four corners of the square. Thus the distance between row to row and plant to plant becomes the same. Advantages: Disadvantages: Rectangular […]

Plant Hormones: Definition, Types, Biosynthesis & Biological roles

Plant hormones: Plant hormones are organic substances produces naturally in less concentration that controls growth and other physiological activities at a site in the plant other than its place of synthesis. Auxin, Gibberellin, and Cytokinin promote growth and are growth regulators. Abscisic acid inhibits growth so it is a growth inhibitor. Ethylene is a fruit […]

Jersey cattle origin, characteristics & uses

The Jersey cattle are relatively a small breed of dairy cattle that are raised primarily for milk production. It is originally bred in the Channel Island of Jersey. Jerseys are one of the oldest breeds of cattle.