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  2. Takhtajan system - Wikipedia

    en.wikipedia.org/wiki/Takhtajan_system

    The first classification was published in Russian in 1954, and came to the attention of the rest of the world after publication of an English translation in 1958 as Origin of Angiospermous Plants. Further versions appeared in 1959 ( Die Evolution der Angiospermen ) and 1966 ( Sistema i filogeniia tsvetkovykh rastenii ). [ 1 ]

  3. Soil-plant-atmosphere continuum - Wikipedia

    en.wikipedia.org/wiki/Soil-plant-atmosphere...

    Soil physics characterizes water in soil in terms of tension, Physiology of plants and animals characterizes water in organisms in terms of diffusion pressure deficit, and; Meteorology uses vapour pressure or relative humidity to characterize atmospheric water. SPAC integrates these components and is defined as a:

  4. Plant taxonomy - Wikipedia

    en.wikipedia.org/wiki/Plant_taxonomy

    Three goals of plant taxonomy are the identification, classification and description of plants. The distinction between these three goals is important and often overlooked. Plant identification is a determination of the identity of an unknown plant by comparison with previously collected specimens or with the aid of books or identification manuals.

  5. Eichler system - Wikipedia

    en.wikipedia.org/wiki/Eichler_system

    A. W. Eichler. A system of plant taxonomy, the Eichler system was the first phylogenetic (phyletic) or evolutionary system. [1] [2] It was developed by August W. Eichler (1839–1887), initially in his Blüthendiagramme (1875–1878) and then in successive editions of his Syllabus (1876–1890).

  6. Plant genetic resources - Wikipedia

    en.wikipedia.org/wiki/Plant_genetic_resources

    A key event in the conservation of plant genetic resources was the establishment of the International Board for Plant Genetic Resources (IBPGR) (now Bioversity International) in 1974, whose mandate was to promote and assist in the worldwide effort to collect and conserve the plant germplasm needed for future research and production. IBPGR ...

  7. Bentham & Hooker system - Wikipedia

    en.wikipedia.org/wiki/Bentham_&_Hooker_system

    Note that this system was published well before there were internationally accepted rules for botanical nomenclature.It indicates a family by "ordo"; an order is indicated by "cohors" (in the first two volumes) or "series" (in the third volume); in the first two volumes “series” refers to a rank above that of order.

  8. Bryophyte - Wikipedia

    en.wikipedia.org/wiki/Bryophyte

    An example of moss (Bryophyta) on the forest floor in Broken Bow, Oklahoma. Bryophytes (/ ˈ b r aɪ. ə ˌ f aɪ t s /) [2] are a group of land plants (embryophytes), sometimes treated as a taxonomic division, that contains three groups of non-vascular land plants: the liverworts, hornworts, and mosses. [3]

  9. Root nodule - Wikipedia

    en.wikipedia.org/wiki/Root_nodule

    The plant provides these cells with leghemoglobin, resulting in a distinct pink color. Zone IV—the senescent zone. Here plant cells and their bacteroid contents are being degraded. The breakdown of the heme component of leghemoglobin results in a visible greening at the base of the nodule.