scholarly journals Physiological effects of gibberellic acid. 8. Growth retardants on barley endosperm.

1965 ◽  
Vol 40 (1) ◽  
pp. 165-169 ◽  
Author(s):  
L Paleg ◽  
H Kende ◽  
H Ninnemann ◽  
A Lang
Keyword(s):  
Gibberellic Acid ◽  
Physiological Effects ◽  
Growth Retardants ◽  
Barley Endosperm

scholarly journals EFFECTS OF GIBBERELLIC ACID ON BARLEY ENDOSPERM

1962 ◽  
Vol 68 (4) ◽  
pp. 322-332 ◽  
Author(s):  
Anna M. MacLeod ◽  
A. S. Millar
Keyword(s):  
Gibberellic Acid ◽  
Barley Endosperm

scholarly journals Control of Growth in Callitriche Shoots by Growth Retardants and Gibberellic Acid

1972 ◽  
Vol 25 (3) ◽  
pp. 637
Author(s):  
CH Wong ◽  
A JMccomb
Keyword(s):  
Gibberellic Acid ◽  
Water Surface ◽  
Higher Plants ◽  
Gibberellin Biosynthesis ◽  
Growth Retardants

Shoots of the aquatic, Callitriche, form floating rosettes of leaves, the internodes of which elongate if the shoot is submerged, or treated at the water surface with gibberellic acid (McComb 1965; Wong and McComb 1967). It may therefore be tentatively proposed that submerged shoots synthesize more gibberellin than do floating shoots. To obtain further information concerning this hypothesis, investiga-tions have been carried out with the growth retardants Amo1618 and CCC, com-pounds which characteristically bring about dwarfing in higher plants, an effect reversed by gibberellin (e.g. McComb and McComb 1970), and which have been shown to inhibit gibberellin biosynthesis in certain systems (e.g. Baldev, Lang, and Agatep 1965; Dennis, Upper, and West 1965; Zeevaart 1966).

scholarly journals PHYSIOLOGICAL CHANGES ASSOCIATED WITH LEAF SENESCENCE IN EASTER LILIES

HortScience ◽  
1995 ◽  
Vol 30 (2) ◽  
pp. 189a-189
Author(s):  
Rosanne E. Franco ◽  
Susan S. Han
Keyword(s):  
Gibberellic Acid ◽  
Leaf Senescence ◽  
Growth Regulators ◽  
Cold Storage ◽  
Foliar Application ◽  
Lilium Longiflorum ◽  
Continuous Treatment ◽  
Physiological Effects ◽  
Easter Lily ◽  
The Individual

Senescence of lower leaves of Easter lilies (Lilium longiflorum Thunb.) was previously shown to be delayed with application of the growth regulators, gibberellic acid (GA3) and benzyladenine (BA). This study was done to determine the physiological effects of GA3 and BA in relation to the delay of leaf senescence. Foliar application with 500 ppm BA or GA3 delayed chlorosis and lowered respiration rate in Easter lily leaves. A combination of 500 ppm BA and 500 ppm GA3 was more effective than the individual application of each. Gibberellic acid, BA, or their combination before cold storage resulted in delayed chlorosis and lowered respiration following removal from cold storage. Treatment with growth regulators after cold storage was less effective. Senescence of leaves was not associated with ethylene since ethylene production by leaves was undetectable by gas chromatograph. In addition, pulsing or continuous treatment with silver thiosulphate (STS), an inhibitor of ethylene synthesis, did not delay foliar chlorosis. Analysis of carbohydrate levels in Easter lily leaves treated with GA3, BA, or their combination may contribute to the understanding of the physiological effects of these two growth regulators.

scholarly journals Physiological effects of gibberellic acid. V. Endosperm responses of barley, wheat, & oats

1962 ◽  
Vol 37 (6) ◽  
pp. 798-803 ◽  
Author(s):  
L. G. Paleg ◽  
B. G. Coombe ◽  
M. S. Buttrose
Keyword(s):  
Gibberellic Acid ◽  
Physiological Effects
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