Opposite response groups of short-day plants to the spectral composition of the main light period and to end-of-day red or far-red irradiations

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Opposite response groups of short-day plants to the spectral composition of the main light period and to end-of-day red or far-red irradiations

Year: 

1974

Source of publication :

Plant and Cell Physiology

Authors :

אפרת, אפרים

;

קדמן-זהבי, אבישג

.

Volume :

Co-Authors: 

Kadman-zahavi, A., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Ephrat, E., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel

From page: 

693

To page: 

699

(

Total pages: 

7

)

Link :

Opposite response groups of short-day plants to the spectral composition of the main light period and to end-of-day red or far-red irradiations

Abstract: 

Two response groups were found among short-day plants grown in blue green-houses having a high or low far-red admixture. In one group flowering was promoted by low far-red and delayed by high far-red; the other group reacted in an opposite manner. In plants grown under 8-hr day and 16-hr night regimes, flowering in the low far-red group was promoted by red and inhibited by far-red illumination preceding the 16-hr nights; in the high far-red group flowering was promoted by far-red and inhibited by red illumination preceding the dark periods. In both groups flowering was inhibited by red light applied in the middle of the dark period. © 1974 Oxford University Press.