Abbreviations

ABA

abscisic acid

B

blue light, 400-500 nm

BA

benzyladenine

CK

cytokinin

CT

circadian time

CDL

critical daylength

CNL

critical nightlength

D

dark

d

days

DNP

day-neutral plant

FR

far red light, 700-750 nm

GA, GA, GA2 etc.

gibberellin, gibberellin A], A2 etc.

h

hours

HIR

high irradiance response

IAA

P-indolyl acetic acid

iP

i so-penteny ladeni ne

iPA

isopentyladenosine

L

light

LD

long-day

LDP

long-day plant

LSDP

long-short-day plant

min

minutes

NB

night-break

NBmax

time of maximum night-break sensitivity

P

total phytochrome

Pr

red-absorbing form of phytochrome

Pfr

far red-absorbing form of phytochrome

PA

polyamine

PGR

plant growth regulator

R

red light, 600-700 nm

s

seconds

SD

short-day

SDP

short-day plant

SLDP short-long-day plant

TF tungsten filament (incandescent lamp)

Z zeatin

ZR zeatin riboside

Illuminance values given in the original papers as lux or foot candles have been converted throughout to W m~2 using the following conversion factors (Cockshull, 1984).

Light source

Factor: W m 2 per lux

Cool white fluorescent lamp

2.9 X 10~3

Daylight fluorescent lamp

3.9 X 10~3

Tungsten-filament lamp

4.2 X 10~3

Natural daylight

4.0 X 10"3

1 foot candle = 10.76 lux

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