D-threo-chloramphenicol at concentrations ranging from 1000 to 3000 ~g/ml stimulated the germination of the light-sensitive seeds of the lettuce (Lactuca sativa L.) varieties Attraetie and Grand Rapids. This stimulatory effect of chloramphcnicol was markedly temperature dependent, increasing with de
Effect of light and temperature on the germination of lettuce seeds
β Scribed by Massanori Takaki; V. M. Zaia
- Publisher
- Springer-Verlag
- Year
- 1984
- Tongue
- English
- Weight
- 225 KB
- Volume
- 160
- Category
- Article
- ISSN
- 0032-0935
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Irradiation of Grand Rapids lettuce (Lactuca sativa L.) seeds with red light (R) results in an increase in the growth response in the embryonic axes which enables them to overcome the mechanical restriction of the endosperm or the osmotic restriction of an external solution. When the growth rates of
Using lettuce (Lactuca sativa L., cv. Grand Rapids) embryos in osmotica, we have demonstrated that when the growth rates of the embryonic axes of seeds treated with red (R) or far-red (FR) light are equalized, the axes of R-treated seeds develop a 3.4-bar decrease in water potential (paper No. III).