Effect of light and temperature on the germination of lettuce seeds.

01:51 EDT 28th July 2015 | BioPortfolio

Summary of "Effect of light and temperature on the germination of lettuce seeds."

A short period (15-30 min) at 30° C promotes germination of seeds of Lactuca sativa L. cv. Repolhuda in darkness. Far-red light reverses this stimulation, and the escape curves for phytochrome and high-temperature action are quite similar, indicating that the two factors act at a common point in the chain of events leading to germination. It is suggested that high temperature acts by decreasing the threshold of the active, far-red absorbing, form of phytochrome (Pfr) needed to promote germination.

Affiliation

Departamento de Bioquímica, Universidade Federal de Permambuco, 50. 000, Recife, PE, Brasil.

Journal Details

This article was published in the following journal.

Name: Planta
ISSN: 1432-2048
Pages: 190-192

Links

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Medical and Biotech [MESH] Definitions

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