Author: Padmini Garud

What Is Photoperiodism

Photoperiodism: Photoperiodism is the response of the plants to the relative lengths and alternation of light and dark periods for initiation of their flowering.  The plant processes like flowering, …

What Is Senescence

Senescence Senescence can be defined as the collective, progressive and degenerative processes that ultimately lead to termination of functional activities of an organ or organism.  It may also be …

What Is Seed Dormancy

Seed Dormancy Seeds germinate as soon as they undergo maturation and are provided with suitable conditions for germination, as in bean, maize, peas etc.,.  In some species, seeds germinate …

The Germination Of Seeds

Germination of seeds In a dry seed the embryo is alive and all the vital activities continue in the cells but, at a slow rate. Thus the embryo remains …

Describe The Structure Of A Seed

The Seed Seed may be defined as the ripened ovule.  The gymnosperms and angiosperms are characterized by the presence of seeds.  In gymnosperms, the megasporophylls do not form ovary, …

Post Fertilization changes In Plants

Post fertilization changes The process of fertilization and triple fusion result in the formation of a diploid zygote and a triploid primary endosperm nucleus respectively. Diploid zygote is the …

Describe Fertilization In Plants

Fertilization The fusion of nuclei of male and female gametes is called fertilization.  It was discovered by Strasburger in the year 1884.  In seed plants, fertilization takes place in …

What Is Cross Pollination

Cross pollination Cross pollination is the transfer of pollen grains from the anther of one flower to the stigma of a genetically different flower.  This process is also called …