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Effects of Ethrel and auxin applications on date palm fruit abscission during development
Year:
2024
Source of publication :
Scientia Horticulturae
Authors :
Cohen, Yuval
;
.
Ish-Shalom, Mazal
;
.
Volume :
326
Co-Authors:

Mazal Ish Shalom
Avraham Sadowsky
Tamir Tikochinsky 
Yuval Ostrovsky
Michal Adler-Agmon 
Yuval Cohen 

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

'Medjoul' is a large semidry date cultivar that is marketed as a special elite product. Fruit size and quality are determined by fruit load, which is dependent on the level of fruit set, fruitlet thinning protocols and natural drop. Currently there is no information on the process of natural fruit abscission in date palms and specifically not on abscission of 'Medjoul'. In the present study abscission levels were characterized through fruit development in vivo and in vitro. Fruit abscise throughout development. During two stages, at an 'Early fruitlet drop' and a 'June drop' (at 25–45 and 80–100 days after pollination respectively), specifically high rates of abscission were observed. The level of fruit set and the fruit load affects these two peaks respectively. Ethrel treatment, an ethylene releasing chemical, significantly induced fruitlet drop while Auxin (2,4-D) treatment reduced the rate of natural fruit drop in vitro, especially during the developmental stages with high natural abscission. A specific abscission zone located at the base of the fruit, just between the calyx and spikelet was detected. Following Ethrel treatment, breaks and cracks in this tissue were detected. This data will enable better understanding of fruitlet and fruit abscission in date palm, which is extremely important for a high quality production of 'Medjoul' dates.

Note:
Related Files :
Auxin
Date palm
Ethrel
fruit abscission
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Related Content
More details
DOI :
10.1016/j.scienta.2023.112755
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
67551
Last updated date:
25/12/2023 17:09
Creation date:
25/12/2023 16:51
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Scientific Publication
Effects of Ethrel and auxin applications on date palm fruit abscission during development
326

Mazal Ish Shalom
Avraham Sadowsky
Tamir Tikochinsky 
Yuval Ostrovsky
Michal Adler-Agmon 
Yuval Cohen 

Effects of Ethrel and auxin applications on date palm fruit abscission during development

'Medjoul' is a large semidry date cultivar that is marketed as a special elite product. Fruit size and quality are determined by fruit load, which is dependent on the level of fruit set, fruitlet thinning protocols and natural drop. Currently there is no information on the process of natural fruit abscission in date palms and specifically not on abscission of 'Medjoul'. In the present study abscission levels were characterized through fruit development in vivo and in vitro. Fruit abscise throughout development. During two stages, at an 'Early fruitlet drop' and a 'June drop' (at 25–45 and 80–100 days after pollination respectively), specifically high rates of abscission were observed. The level of fruit set and the fruit load affects these two peaks respectively. Ethrel treatment, an ethylene releasing chemical, significantly induced fruitlet drop while Auxin (2,4-D) treatment reduced the rate of natural fruit drop in vitro, especially during the developmental stages with high natural abscission. A specific abscission zone located at the base of the fruit, just between the calyx and spikelet was detected. Following Ethrel treatment, breaks and cracks in this tissue were detected. This data will enable better understanding of fruitlet and fruit abscission in date palm, which is extremely important for a high quality production of 'Medjoul' dates.

Scientific Publication
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