The growth physics and water relations of red-light-induced germination in lettuce seeds

摘要

Using lettuce (Lactuca sativaL., 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).