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Raphanus raphanistrum, also known as wild radish, white charlock or jointed charlock, [1] is a flowering plant in the family Brassicaceae. The species is native to western Asia, Europe and parts of Northern Africa.
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 ...
Radish seeds. The seeds of radishes grow in siliques (widely referred to as "pods"), following flowering that happens when left to grow past their normal harvesting period. The seeds are edible and are sometimes used as a crunchy, sharp addition to salads. [16] Some varieties are grown specifically for their seeds or seed pods, rather than ...
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.
Using thermal and chemical scarification, germination increased to 48.8% and 44% respectively. 68% of Longspur lupine seeds germinated in the control group, while all scarification methods decreased the success rate of germination. The silvery lupine had 52% of its control group germinate but through mechanical scarification it rose to 85.2%.
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 ...