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  2. Thermotropism - Wikipedia

    en.wikipedia.org/wiki/Thermotropism

    These movements worked to avoid photo-inhibition and keep leaf temperature lower than the air temperature. [12] In sunflowers, we find a different relation involving floral warming. The floral heads of these plants follow the sun from east to west causing increased solar irradiation heating the plant. This resulted in more pollinators being ...

  3. Cold hardening - Wikipedia

    en.wikipedia.org/wiki/Cold_hardening

    Plants that originated in the tropics, like tomato or maize, don't go through cold hardening and are unable to survive freezing temperatures. [3] The plant starts the adaptation by exposure to cold yet still not freezing temperatures. The process can be divided into three steps.

  4. Thermonasty - Wikipedia

    en.wikipedia.org/wiki/Thermonasty

    These movements are thought to be regulated by having unequal cell elongation in certain plant tissues, causing different tissues to bend. [2] In other processes, like in the temperature regulation of flower openings, movement has instead been shown to be a result of irreversible cell growth, a growth type not typically associated with plant ...

  5. Freezing tolerance - Wikipedia

    en.wikipedia.org/wiki/Freezing_tolerance

    The ability to control intercellular ice formation during freezing is critical to the survival of freeze-tolerant plants. [3] If intracellular ice forms, it could be lethal to the plant when adhesion between cellular membranes and walls occur. The process of freezing tolerance through cold acclimation is a two-stage mechanism: [4]

  6. The Power of Movement in Plants - Wikipedia

    en.wikipedia.org/.../The_Power_of_Movement_in_Plants

    The Power of Movement in Plants was published 6 November 1880, and 1500 copies were quickly sold by publisher John Murray. [ 1 ] This book stands at the culmination of a long line of study in plants and is immediately preceded by 'The different forms of flowers on Plants of the same species’ (1877).

  7. Nyctinasty - Wikipedia

    en.wikipedia.org/wiki/Nyctinasty

    This indicates nyctinastic movement may be beneficial toward plant growth. [12] Charles Darwin believed that nyctinasty exists to reduce the risk of plants freezing. [13] Nyctinasty may occur to protect the pollen, keeping pollen dry and intact during the nighttime when most pollinating insects are inactive. [14]

  8. Frost - Wikipedia

    en.wikipedia.org/wiki/Frost

    Dead plant leaves during Winter Storm Uri in a backyard in Northern Mexico, with below freezing temperatures. Black frost (or "killing frost") is not strictly speaking frost at all, because it is the condition seen in crops when the humidity is too low for frost to form, but the temperature falls so low that plant tissues freeze and die ...

  9. Hardiness (plants) - Wikipedia

    en.wikipedia.org/wiki/Hardiness_(plants)

    Tender plants are those killed by freezing temperatures, while hardy plants survive freezing—at least down to certain temperatures, depending on the plant. "Half-hardy" is a term used sometimes in horticulture to describe bedding plants which are sown in heat in winter or early spring, and planted outside after all danger of frost has passed.

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