Changes in Endogenous Hormone Levels during the Ripening of Grape Cultivars Having Different Berry Set Mechanisms

Nilgün Göktürk BAYDAR*; Nihat HARMANKAYA

Article Details

Changes in Endogenous Hormone Levels during the Ripening of Grape Cultivars Having Different Berry Set Mechanisms

Authors:

Nilgün Göktürk BAYDAR* | Nihat HARMANKAYA

Publisher:

TUBITAK

Journal:

Turkish Journal of Agriculture and Forestry 2005 Vol.29 Issue 3, pp.205-210

Document Type:

Article

Publication Date:

2/2005

Document Language:

Turkish

Document ID (Org No.):

2000809045

Frequency:

Bimonthly

eISSN:

1303-6173

pISSN:

1300-011X

Keywords:

Abstract:

 

Concentrations of indole-3-acetic acid (IAA), gibberellic acid (GA3) and abscisic acid (ABA) were measured by gas chromatography (GC) in the berries of 3 grape cultivars having different berry set mechanisms to elucidate the possible relationship between endogenous hormones and berry set mechanisms. The results obtained showed that the levels of IAA, GA3 and ABA in seeded Italia, empty seeded Çavuş and stenospermocarpic seedless Perlette changed during ripening. While Italia exhibited a hormonal pattern similar to that of Çavuş, Perlette showed a different IAA and ABA pattern compared to the other cultivars. Generally, IAA and GA3 were high in the early stages of berry growth. The concentrations of IAA and GA3 in the berries declined to very low levels at the time of ripening. On the other hand, changes in ABA levels were closely associated with ripening. The highest contents of hormones were found in Italia and the lowest in Perlette. Çavuş was placed between them with intermediate concentrations. From the results, it was concluded that there may be a close relationship between hormone contents in berries and the degree of seed development.

 

Concentrations of indole-3-acetic acid (IAA), gibberellic acid (GA3) and abscisic acid (ABA) were measured by gas chromatography (GC) in the berries of 3 grape cultivars having different berry set mechanisms to elucidate the possible relationship between endogenous hormones and berry set mechanisms. The results obtained showed that the levels of IAA, GA3 and ABA in seeded Italia, empty seeded Çavuş and stenospermocarpic seedless Perlette changed during ripening. While Italia exhibited a hormonal pattern similar to that of Çavuş, Perlette showed a different IAA and ABA pattern compared to the other cultivars. Generally, IAA and GA3 were high in the early stages of berry growth. The concentrations of IAA and GA3 in the berries declined to very low levels at the time of ripening. On the other hand, changes in ABA levels were closely associated with ripening. The highest contents of hormones were found in Italia and the lowest in Perlette. Çavuş was placed between them with intermediate concentrations. From the results, it was concluded that there may be a close relationship between hormone contents in berries and the degree of seed development.

Article Details

Changes in Endogenous Hormone Levels during the Ripening of Grape Cultivars Having Different Berry Set Mechanisms

Authors: Nilgün Göktürk BAYDAR* | Nihat HARMANKAYA

Publisher: TUBITAK

Journal: Turkish Journal of Agriculture and Forestry 2005 Vol.29 Issue 3, pp.205-210

Document Type: Article

Publication Date: 2/2005

Document Language: Turkish

Document ID (Org No.): 2000809045

Frequency: Bimonthly

eISSN: 1303-6173

pISSN: 1300-011X

grape

berry set

indole-3-acetic acid

gibberellic acid

abscisic acid

Issues

Authors:

Nilgün Göktürk BAYDAR* | Nihat HARMANKAYA

Publisher:

TUBITAK

Journal:

Turkish Journal of Agriculture and Forestry 2005 Vol.29 Issue 3, pp.205-210

Document Type:

Article

Publication Date:

2/2005

Document Language:

Turkish

Document ID (Org No.):

2000809045

Frequency:

Bimonthly

eISSN:

1303-6173

pISSN:

1300-011X