REJECTION OF NAMES
A legitimate name must not be rejected merely because it, or its epithet, is inappropriate or disagreeable, or because another is preferable or better known or because it has lost its original meaning. A name is rejected under one or more of the following situations: Nomen nudum (nom. nud.): …
Read More »Endanger (ED) and Extinct Endemic Plants of Bangladesh
Endanger (ED) Plants: SL. Name Locality Status 1 Aldrovanda vesiculosa, Rajshahi Critically Endangered 2 Alocasia salarkhanii H. Ara & M.A. Hassan Moulvibazar Critically Endangered 3 Boesenbergia islamii Yusuf & Rahman Chittagong Endangered 4 Curcuma bakerii Rahman & Yusuf Tangail Endangered 5 Curcuma hookerii Rahman & Yusuf Chittagong Rare 6 Curcuma …
Read More »Mega Diversity Countries
Warm and humid regions in between the tropics of cancer and Capricorn are provided with a rich and diverse plant, animal, and microbial life are considered as mega diversity countries. Or simply can say that Countries that happen to lie in this zone are referred to as mega diversity …
Read More »Phototropism: Julius Von Sachs and Blue Light
Unlike other living beings plants are immobile. They have to live at the mercy of nature. If the place they are standing on has a scarcity of water or minerals, they can’t move to a better place. If a tornado or cyclone arrives they can’t escape from it and take …
Read More »Ascomycetes: Asexual & Sexual Reproduction
Asexual Reproduction Asexual reproduction in the Ascomycetes may be carried on by fission, fragmentation, chlamydospores, or conidia according to the species and to the environmental conditions. Fission & Budding in Yeast: Fission and budding are methods of propagation normally encountered in the yeasts and in a few other Ascomycetes. Spores …
Read More »Linkage and recombination
Gene mapping The diagrammatic representation of location and arrangement of genes and relative distance between linked gene of a chromosome is called linkage map or genetic map. Unit of genetic map is Morgan or Centimorgan. History Test cross Gene map distance If the percentage of crossing over between two linked …
Read More »For any researcher, the first initiative to carry out and experiment is to select an appropriate experimental design.
Read More »Experimental Design (Part-2): CRD, RBD and Latin Square Design
Previously, basic principles and terminology of experiments have been discussed. There are several methods of experimental designs according to which the researchers follow and carry out statistical analysis. Among them, Completely randomized design (CRD), Randomised block design (RBD), and Latin square design is discussed here. Completely randomized design (CRD) In …
Read More »Probability in Statistics
Probability means the possibility of a random phenomena.
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Plantlet The Blogging Platform of Department of Botany, University of Dhaka