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The optimum temperature for seed germination is 29 °C (84 °F), with degradation of germination seen above 30 °C (86 °F) and little to no germination occurring at 40 °C (104 °F); at 29 °C (84 °F) the time to 50% germination rate depends on cultivar and seed lot but was tested as being between 4 and 5 days, which is shorter than cayenne. [19]
Germination 00: Dry seed 01: Start of imbibition 03: Imbibition complete 05: Radicle emerged from seed 07: Coleoptile emerged from seed 09: 0.0: Leaf just at coleoptile tip Seedling growth 10: 1: First leaf through coleoptile 11: 1.+ First leaf unfolded 12: 1.+ 2 leaves unfolded 13: 2.+ 3 leaves unfolded 14: 3.+ 4 leaves unfolded 15: 4.+ 5 ...
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 ...
Modern seed sizes range from 0.0001 mg in orchid seeds to 42 kilograms (92 lb 10 oz) in double coconuts. [7] [2] Larger seeds have larger quantities of metabolic reserves in their embryo and endosperm available for the seedling [8] than smaller seeds, and often aid establishment under low resource availability. [9]
The presence of mucilage in seeds affects important ecological processes in some plant species, such as tolerance of water stress, competition via allelopathy, or facilitation of germination through attachment to soil particles. [13] [14] [15] Some authors have also suggested a role of seed mucilage in protecting DNA material from irradiation ...
0: Germination, sprouting, bud development; 1: Leaf development; 2: Formation of side shoots, tillering; 3: Stem elongation or rosette growth, shoot development; 4 ...
As they are native to the Mexican state of Tabasco, seeds require much warmth to germinate and grow best when the temperature is between 25–30 °C (77–86 °F). If grown outside their natural habitat, the peppers are planted two to three weeks after the last frost when soil temperatures exceed 10 °C (50 °F) and the weather has settled.
The seed germination temperature is 23–30 °C; if below 15 °C can not germinate. Pepper seeds require higher temperatures, and they grow more slowly when the temperature is relatively low. At the beginning of the flowering season, the temperature is 20–25 °C during the daytime and 15–20 °C during the night.
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