The following points highlight the three types of movements in plants. The types are: 1. Movements of Locomotion 2. Movements of Curvature and 3. Hygroscopic Movements. The first two types of movements are called as vital movements because they are exhibÂited only by the living cells or organisms. Movement Type # 1. Movements of Locomotion: Those movements in which whole [...]
Let us make an in-depth study of the circadian rhythms in plants. After reading this article you will learn about 1. Endogenous Versus Exogenous Rhythms 2. Occurrence of Circadian Rhythms in Plants 3. Terminology 4. Establishment of Endogenous Nature of a Rhythm and 5. Biological Clock. Introduction to Circadian Rhythms: Like all other living organisms, the plants are and have [...]
The below mentioned article provides a study note on the viability or longevity of seeds. After their maturation the seeds do not remain viable indefinitely. They have a particular life span during which they must germinate otherwise they lose their viability (or capacity to germinate) first gradually and finally completely. The life span of seeds which may vary from few [...]