
TY  - JOUR
A1  - Bullowa, S 
A1  - Negbi, M 
A1  - Ozeri, Y 
T1  - Role of Temperature, Light and Growth Regulators in Germination in <I>Anemone coronaria</I> L
JF  - Functional Plant Biology
JO  - Functional Plant Biol.
Y1  - 1975
VL  - 2
IS  - 1
SP  - 91
EP  - 100
KW  - 
UR  - https://doi.org/10.1071/PP9750091 
N2  - The optimal temperature range for germination of achenes of the De Caen type of cultivated A. coronaria L. was 10-20&#176;C. Continuous irradiation with white light retarded germination, particularly at supraoptimal temperature. The retardation was caused by the far-red component of the light. Blue light was inactive by itself but synergized with far-red. Gibberellic acid (GA3) promoted gerrnin- ation only at supraoptimal temperature (25&#176;C). Abscisic acid (ABA) inhibited germination more at 20 than at 15&#176;C. Rinsing the achenes with water completely removed the inhibition caused by 40 p.p.m. ABA. GA3 at a concentration of 100 p.p.m. partly overcame the inhibition caused by ABA. The growth retardants (2-chloroethyl)trimethylammonium chloride and Amo-1618 [2'-isopropyl-4'- (trimethylammonium chloride)-5'-methylphenyl piperidine-1-carboxylate] inhibited germination more at 20 than at 15&#176;C; Amo-1618 was more inhibitory. GA3 at concentrations of 10-1000 p.p.m. partly overcame the inhibition by 100 p.p.m. Amo-1618, but not that by 1000 p.p.m.    Partial stripping or cutting of the pericarp enhanced germination whereas complete removal inhibited it. During the first 6 days of incubation under the optimal conditions the embryo grows within the endosperm, thus accounting for the minimum lag period of 6 days prior to emergence of the seedling from the pericarp. 
ER  -

