August, 2020

• 21 August

  Soil Forming Processes

  

  The soil-forming is a complex process along with a lot of factors and processing ways. It takes a long period of time to develop even an inch of soil. In this article, the basic processes of soil formation are discussed briefly. Related article– Soil Forming Factors Soil Forming processes There …

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• 21 August

  Equisetum: The Scouring Rushes

  

  Equisetum: The Scouring Rushes Equisetum commonly known as ‘Horsetails’ or ‘Scouring rushes’. It comprises about 25 species and is worldwide in distribution. Except This genus in vascular plants, there is no living genus in Equisetaceae family that reproduces by spores rather than seeds. Taxonomic position: Division: Sphenophyta Class: Sphenopsida Order: …

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• 20 August

  Types & Procedures of Selection Process (Part-2)

  

  Plant breeding is defined as identifying and selecting desirable traits in plants and combining this into one individual plant. Since 1900, Mendel’s laws of genetics provided the scientific basis for plant breeding. Selection is the most ancient and basic procedure in plant breeding. Selection procedures used in plant breeding have …

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• 20 August

  Types & Procedures of Selection Process (Part-1)

  

  Plant improvement must have been started with the primitive man changing his mode of life from a nomad to an agriculturist. To have a crop in the next season, he had obtained seeds from the first crop. For this, unconsciously the process of selection is practiced for a long time …

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• 20 August

  Oomycetes: Order Saprolegnia

  

  The oomycetes, also known as “water molds”, are a group of several hundred organisms that include some of the most devastating plant pathogens.  The diseases they cause include seedling blights, damping-off, root rots, foliar blights and downy mildews. Some notable diseases are the late blight of potato, downy mildew of …

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• 14 August

  Classification of Life: The Three Domain Concept

  

  A domain is the highest taxonomic level of species in biology. In 1977, Woese and his coworkers developed the groundbreaking three-domain system.  They proposed this classification based on differences in the sequences of nucleotides in the cell’s ribosomal RNAs (known as 16S rRNA). They created the first worldwide tree of …

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• 13 August

  Cytoplasmic Inheritance: Transfer of Genetic Characters by Means of Autonomous Organelles

  

  The genes of nuclear chromosome have a significant and key role in the inheritance of almost all traits from generations to generations,but altogether they cannot be considered as the sole vehicle of inheritance because certain experimental evidences suggest the occurance of certain extranuclear genes or DNA molecules in the cytoplasm …

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• 12 August

  Meiosis: Reductional Division

  

  In order to grow, cells have two options. They must either replicate themselves to create more cells, or the cells themselves must expand in volume. In humans, tissues such as the skin and blood contain cells that are actively dividing, while other tissues such as fat contain cells that expand. …

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• 11 August

  Soil Solid & Solution

  

  In the soil, there are different kinds of constitunets. These properties are divided into two major types- solid and solution. This composition of soil solids and soil solution is discussed in this article.   Chemical Composition of Soil Solids Soil Solid consists of soil mineral matter and soil organic matter. The …

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• 10 August

  Composition of Soil

  

  Soil- a very common word to all of us living in this universe. You must have seen, even touched soil. But do you ever thought about what component/s are jot down to make such a major element of our environment? Soil is basically a mixture of few basic components- inorganic …

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