Studies of the Mechanism of Enhancement of Phytochrome-dependent Lettuce Seed Germination by Prechilling.

Abstract

Temperature and kinetic studies were performed to examine the mechanism by which prechilling stimulates phytochrome-dependent seed germination in lettuce, Lactuca sativa, L. cv. Grand Rapids. Imbibed seeds were given a short far red irradiation and one day of dark incubation at 20 C to establish very low levels of the far red-absorbing form of phytochrome… (More)

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