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  2. William James Beal - Wikipedia

    en.wikipedia.org/wiki/William_James_Beal

    Germination experiment. In 1879 Beal started one of the longest-running experiments in botany. He filled 20 bottles with a mixture of sand and seeds, with each bottle ...

  3. Oldest viable seed - Wikipedia

    en.wikipedia.org/wiki/Oldest_viable_seed

    Over time, seeds lose viability, which is the ability to initiate metabolic activity, cellular growth, and germination. Seeds have many cells and tissues that die over time, [ 1 ] and these deaths can be delayed or increased by environmental conditions the seed experiences.

  4. Stratification (seeds) - Wikipedia

    en.wikipedia.org/wiki/Stratification_(seeds)

    Seeds of many trees, shrubs and perennials require these conditions before germination will ensue. [3] In the wild, seed dormancy is usually overcome by the seed spending time in the ground through a winter period and having its hard seed coat softened by frost and weathering action. By doing so the seed is undergoing a natural form of "cold ...

  5. Germination - Wikipedia

    en.wikipedia.org/wiki/Germination

    It is a measure of germination time course and is usually expressed as a percentage, e.g., an 85% germination rate indicates that about 85 out of 100 seeds will probably germinate under proper conditions over the germination period given. Seed germination rate is determined by the seed genetic composition, morphological features and ...

  6. Seed - Wikipedia

    en.wikipedia.org/wiki/Seed

    The germination percentage is simply the proportion of seeds that germinate from all seeds subject to the right conditions for growth. The germination rate is the length of time it takes for the seeds to germinate. Germination percentages and rates are affected by seed viability, dormancy and environmental effects that impact on the seed and ...

  7. Yevgeny Zavoisky - Wikipedia

    en.wikipedia.org/wiki/Yevgeny_Zavoisky

    His research directions included generation of ultrashort waves; study of their physical and chemical effects on matter, including the effect on seed germination; and investigation of superregenerative effect. The seed germination topic was a reflection of that difficult period when scientists were required to try helping the Russian economy ...

  8. Plant physiology - Wikipedia

    en.wikipedia.org/wiki/Plant_physiology

    A germination rate experiment. Plant physiology is a subdiscipline of botany concerned with the functioning, or physiology, of plants. [1]Plant physiologists study fundamental processes of plants, such as photosynthesis, respiration, plant nutrition, plant hormone functions, tropisms, nastic movements, photoperiodism, photomorphogenesis, circadian rhythms, environmental stress physiology, seed ...

  9. Seed testing - Wikipedia

    en.wikipedia.org/wiki/Seed_testing

    The Tetrazolium Chloride (TZ) test, often called the quick germination test, is a chemical test used to determine seed viability, and results are usually available within 24 to 48 hours The TZ test differs from a germination test in that the TZ test can give you an early and quick snapshot of seed viability but is not a replacement for the more comprehensive seed germination test.

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