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Effect of pollenizer distance and selective fruitlet abscission on outcrossing rate and yield in 'Tommy Atkins' mango
Year:
1998
Authors :
Dag, Arnon
;
.
Degani, Chemda
;
.
El-Batsri, Ruth
;
.
Volume :
123
Co-Authors:
Dag, A., Kennedy-Leigh Ctr. for Hort. Res., Faculty of Agriculture, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Eisenstein, D., Kennedy-Leigh Ctr. for Hort. Res., Faculty of Agriculture, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Gazit, S., Kennedy-Leigh Ctr. for Hort. Res., Faculty of Agriculture, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
El-Batsri, R., Institute of Horticulture, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Degani, C., Institute of Horticulture, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Facilitators :
From page:
618
To page:
622
(
Total pages:
5
)
Abstract:
Postzygotic self-incompatibility has been reported in several Indian mango (Mangifera indica L.) commercial cultivars. Floridian cultivars, on the other hand, have been planted in solid blocks and seem to be self-fertile. Isozyme analysis enabled us to determine outcrossings rates at the fruitlet and fruit stages in the Floridian 'Tommy Atkins' ('Tommy'). Two commercial mango orchards consisting of adjacent solid blocks of 'Maya' and 'Tommy' were studied. This combination offered a unique opportunity to identify each individual fruitlet or fruit as selfed or outcrossed by TPI isozyme analysis. A consistent and significant increase in outcrossing rate during fruit development was found: the average outcrossing rate increased from 10% and 13% in fruitlets to 66% and 73% in mature fruit in the two 'Tommy' blocks surveyed. This 6-fold increase is the result of selective abscission of selfed progeny. A significant inverse correlation was found between the distance of 'Tommy' trees from the 'Maya' block and the outcrossing rate in mature fruit. No significant correlation between distance from 'Maya', or outcrossing rate, and yield was observed, suggesting that the practice of planting 'Tommy' in solid blocks is sound.
Note:
Related Files :
growth regulation
Inbreeding depression
Mangifera indica
mango
plant development
plant growth
Show More
Related Content
More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
18967
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:25
Scientific Publication
Effect of pollenizer distance and selective fruitlet abscission on outcrossing rate and yield in 'Tommy Atkins' mango
123
Dag, A., Kennedy-Leigh Ctr. for Hort. Res., Faculty of Agriculture, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Eisenstein, D., Kennedy-Leigh Ctr. for Hort. Res., Faculty of Agriculture, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Gazit, S., Kennedy-Leigh Ctr. for Hort. Res., Faculty of Agriculture, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
El-Batsri, R., Institute of Horticulture, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Degani, C., Institute of Horticulture, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Effect of pollenizer distance and selective fruitlet abscission on outcrossing rate and yield in 'Tommy Atkins' mango
Postzygotic self-incompatibility has been reported in several Indian mango (Mangifera indica L.) commercial cultivars. Floridian cultivars, on the other hand, have been planted in solid blocks and seem to be self-fertile. Isozyme analysis enabled us to determine outcrossings rates at the fruitlet and fruit stages in the Floridian 'Tommy Atkins' ('Tommy'). Two commercial mango orchards consisting of adjacent solid blocks of 'Maya' and 'Tommy' were studied. This combination offered a unique opportunity to identify each individual fruitlet or fruit as selfed or outcrossed by TPI isozyme analysis. A consistent and significant increase in outcrossing rate during fruit development was found: the average outcrossing rate increased from 10% and 13% in fruitlets to 66% and 73% in mature fruit in the two 'Tommy' blocks surveyed. This 6-fold increase is the result of selective abscission of selfed progeny. A significant inverse correlation was found between the distance of 'Tommy' trees from the 'Maya' block and the outcrossing rate in mature fruit. No significant correlation between distance from 'Maya', or outcrossing rate, and yield was observed, suggesting that the practice of planting 'Tommy' in solid blocks is sound.
Scientific Publication
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