Far-red radiation reflected from adjacent leaves: an early signal of competition in plant canopies

When individual seedlings of Datura ferox and Sinapis alba were transferred to populations formed by plants of similar stature, they responded with an increase in the rate of stem elongation. The reaction was detected within 3 days after transplanting and occurred well before shading among neighbors...

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Published in:Science (American Association for the Advancement of Science) 1990-01, Vol.247 (4940), p.329-332
Main Authors: Ballaré, Carlos L., Scopel, Ana L., Sánchez, Rodolfo A.
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
biological competition
Biology
Botany
brassica alba
canopy
competencia biologica
competition biologique
couvert
crecimiento
croissance
cubierta de copas
datura
Demecology
Forest ecology
Fundamental and applied biological sciences. Psychology
Growth
Internodes
Jimson weed
Jimsonweed
Leaves
Light
Optical filters
Plant physiology
Plants
Plants and fungi
Plants, Effect of light on
Seedlings
Sinapis alba
Stem elongation
stems
tallo
tige
Vegetation canopies
Visible spectrum
Water filtration
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description When individual seedlings of Datura ferox and Sinapis alba were transferred to populations formed by plants of similar stature, they responded with an increase in the rate of stem elongation. The reaction was detected within 3 days after transplanting and occurred well before shading among neighbors became important. This rapid response, which may be crucial for success in the competition for fight, was reduced or abolished when individual internodes were "blinded" to the far-red radiation scattered by the surrounding seedlings. These results show the operation of a localized, photomorphogenetic control of stem elongation that may play a central role in the plastic adjustment of plants during the early stages of canopy development.
doi_str_mv 10.1126/science.247.4940.329
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These results show the operation of a localized, photomorphogenetic control of stem elongation that may play a central role in the plastic adjustment of plants during the early stages of canopy development.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.247.4940.329</identifier><identifier>PMID: 17735851</identifier><identifier>CODEN: SCIEAS</identifier><language>eng</language><publisher>Washington, DC: American Society for the Advancement of Science</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; Biological and medical sciences ; biological competition ; Biology ; Botany ; brassica alba ; canopy ; competencia biologica ; competition biologique ; couvert ; crecimiento ; croissance ; cubierta de copas ; datura ; Demecology ; Forest ecology ; Fundamental and applied biological sciences. 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subjects Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
biological competition
Biology
Botany
brassica alba
canopy
competencia biologica
competition biologique
couvert
crecimiento
croissance
cubierta de copas
datura
Demecology
Forest ecology
Fundamental and applied biological sciences. Psychology
Growth
Internodes
Jimson weed
Jimsonweed
Leaves
Light
Optical filters
Plant physiology
Plants
Plants and fungi
Plants, Effect of light on
Seedlings
Sinapis alba
Stem elongation
stems
tallo
tige
Vegetation canopies
Visible spectrum
Water filtration
title Far-red radiation reflected from adjacent leaves: an early signal of competition in plant canopies
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