Secondary growth can be defined as a phenomenon where, after the completion of primary tissue formation, more secondary tissues are developed to supplement dermal, vascular and mechanical tissue system in certain plants. The meristem of primary tissue divides. The daughter cells, after differentiation and maturation, form primary tissues of plant body. Primary tissues include epidermis, cortex, primary phloem, primary xylem [...]
This article will guide you about how to determine the plastochron index. Plastochron is defined as the time interval between the formation of one leaf primordium and the initiation of next leaf primordium. Plastochron is a developmental measure and is expressed as 'plastochron index'. The index indicates the developmental status of each leaf and relates the observation to time. The [...]
In this article we will discuss about the process of healing of wounds in plants, explained with the help of suitable diagrams. Plant organs often are wounded by adverse calamities of nature, grazing animals and human interference etc. As a result the living cells are exposed and they are subjected to desiccation and attack by bacteria, fungi and other pathogenic [...]