Analysis of the dual role of phytochrome in the photoinhibition of seed germination

Abstract

Light can both promote and inhibit germination, even of seeds of the same species1–3. Many seeds considered to be positively photoblastic are inhibited by prolonged irradiation with light of a wide variety of spectral qualities, including those, such as sunlight, that promote germination when given as a short exposure4. The promoting effect of light is… (More)
DOI: 10.1038/300750a0

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