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词汇 vernalization
释义

Definition of vernalization in English:

vernalization

(British vernalisation)
noun vəːn(ə)lʌɪˈzeɪʃ(ə)nˌvərn(ə)ləˈzāSHən
mass noun
  • The cooling of seed during germination in order to accelerate flowering when it is planted.

    春化(作用);春化处理

    Example sentencesExamples
    • Growth conditions of the spring genotypes Lina and Manley were similar to those for winter genotypes except that no vernalization was required.
    • After vernalization at 4°C for 72 h, the seeds were germinated at 23°C under continuous illumination.
    • Time of flowering is affected by genes controlling the response to vernalization, to differences in day length and earliness per se.
    • Floral commitment may therefore be different in character from stable epigenetic changes that occur in plant development, such as vernalization.
    • Late flowering in the absence of vernalization also allows the seedlings that emerge in autumn to overwinter as rosette plants.
    • In the second year flower initiation is induced after vernalization in the preceding winter.
    • Thus, the inputs from the autonomous, vernalization, and FRI pathways integrate to determine the level of FLC floral repressor.
    • The plants grown at 16-18°C did not form inflorescences, although they were stimulated by vernalization.
    • Therefore, recently emerged wheat has probably experienced sufficient cold to permit vernalization and subsequent head formation.
    • Indeed, with the montane population, even 10 weeks vernalization of seeds did not result in 100% flowering.
    • Plants of T. aethusae do not require vernalization for flowering, thus the low temperatures during winter in Kentucky merely delay flowering.
    • Likewise, vernalization can confer a degree of salinity tolerance, as can earlier development.
    • This experiment was repeated in part during 2000-2001: 15 plants received zero hours of vernalization and 15 full vernalization.
    • A period of vernalization was required for initiation of synflorescence production.
    • Chilling prevents flower initiation in Fragaria, rather than accelerating it as vernalization does in winter annuals.
    • In addition to photoperiod and vernalization, ambient growth temperature can have profound effects on flowering.

Derivatives

  • vernalize

  • verbˈvəːnəlʌɪzˈvərnəˌlaɪz
    [with object]
    • Cool (seed) during germination in order to accelerate flowering after planting.

      春化(作用);春化处理

      most plants have been vernalized and will establish easily
      Example sentencesExamples
      • seedlings were vernalized at 4°C for 6 weeks
      • Plants from winter-type cultivars were first vernalized and then kept in the greenhouse.
      • Most plants bought in spring have been vernalized (gone through a winter dormancy) and will establish easily.
      • Growers should be able to tell if the wheat has vernalized by May 21.

Origin

1930s: translation of Russian yarovizatsiya.

Definition of vernalization in US English:

vernalization

(British vernalisation)
nounˌvərn(ə)ləˈzāSHən
  • The cooling of seed during germination in order to accelerate flowering when it is planted.

    春化(作用);春化处理

    Example sentencesExamples
    • Chilling prevents flower initiation in Fragaria, rather than accelerating it as vernalization does in winter annuals.
    • Floral commitment may therefore be different in character from stable epigenetic changes that occur in plant development, such as vernalization.
    • Likewise, vernalization can confer a degree of salinity tolerance, as can earlier development.
    • A period of vernalization was required for initiation of synflorescence production.
    • In addition to photoperiod and vernalization, ambient growth temperature can have profound effects on flowering.
    • Late flowering in the absence of vernalization also allows the seedlings that emerge in autumn to overwinter as rosette plants.
    • Growth conditions of the spring genotypes Lina and Manley were similar to those for winter genotypes except that no vernalization was required.
    • After vernalization at 4°C for 72 h, the seeds were germinated at 23°C under continuous illumination.
    • This experiment was repeated in part during 2000-2001: 15 plants received zero hours of vernalization and 15 full vernalization.
    • Plants of T. aethusae do not require vernalization for flowering, thus the low temperatures during winter in Kentucky merely delay flowering.
    • The plants grown at 16-18°C did not form inflorescences, although they were stimulated by vernalization.
    • Thus, the inputs from the autonomous, vernalization, and FRI pathways integrate to determine the level of FLC floral repressor.
    • Therefore, recently emerged wheat has probably experienced sufficient cold to permit vernalization and subsequent head formation.
    • Indeed, with the montane population, even 10 weeks vernalization of seeds did not result in 100% flowering.
    • In the second year flower initiation is induced after vernalization in the preceding winter.
    • Time of flowering is affected by genes controlling the response to vernalization, to differences in day length and earliness per se.

Origin

1930s: translation of Russian yarovizatsiya.

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