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פותח על ידי קלירמאש פתרונות בע"מ -
Genetic improvement of durum wheat establishment under fluctuating environmental conditions
Year:
2014
Authors :
בן-דוד, רואי
;
.
נאשף, כמאל
;
.
Volume :
Co-Authors:

Amram, Avishay and Peleg, Zvi

Facilitators :
From page:
147
To page:
149
(
Total pages:
3
)
Abstract:

Early sowing is critical for achieving high grain yields in wheat, especially under semi-arid environmental conditions where terminal drought limit the season. Fluctuating and sporadic precipitation early in the season could delay sowing or even terminate seedling growth. By applying deep sowing technique farmers have a tool to ensure adequate seed-zone moisture before germination leading to increasing seed establishment. This is often not feasible because of the extensive growing of semi-dwarf wheat containing the gibberellin insensitive genes Reduce height (Rht)-B1b/Rht-D1b which have shorter coleoptiles and low vigor. On the other hand, several alternative dwaring genes with longer coleoptile have been reported. Our working hypothesis is that introduction of these alternative dwaring genes into modern durum cultivars can improve emergence and seedling establishment under luctuating environmental conditions. Emergence tests of durum wheat landraces from across the Mediterranean region, alongside with elite Israeli durum wheat cultivars, showed signiicant advantage of these pre- “Green Revolution” cultivars to emerge from soil-depth. While the durum Israeli cultivars germinated poorly from 10cm depth, several durum landraces show improved emergence rate, establishment and early vigor. Our results demonstrate the potential of using alternative dwaring genes to improve wheat seedling survival under luctuating environmental conditions and enhance yields.

Note:

Options Méditerranéennes : Série A. Séminaires Méditerranéens; n. 110

Related Files :
Coleoptile
drought resistance
Durum landraces
dwarfing genes
Early vigor
emergence
Rht
wheat
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
גוגל סקולר
Publication Type:
מאמר מתוך כינוס
;
.
Language:
אנגלית
Editors' remarks:
ID:
44937
Last updated date:
02/03/2022 17:27
Creation date:
12/11/2019 08:47
Scientific Publication
Genetic improvement of durum wheat establishment under fluctuating environmental conditions

Amram, Avishay and Peleg, Zvi

Genetic improvement of durum wheat establishment under fluctuating environmental conditions

Early sowing is critical for achieving high grain yields in wheat, especially under semi-arid environmental conditions where terminal drought limit the season. Fluctuating and sporadic precipitation early in the season could delay sowing or even terminate seedling growth. By applying deep sowing technique farmers have a tool to ensure adequate seed-zone moisture before germination leading to increasing seed establishment. This is often not feasible because of the extensive growing of semi-dwarf wheat containing the gibberellin insensitive genes Reduce height (Rht)-B1b/Rht-D1b which have shorter coleoptiles and low vigor. On the other hand, several alternative dwaring genes with longer coleoptile have been reported. Our working hypothesis is that introduction of these alternative dwaring genes into modern durum cultivars can improve emergence and seedling establishment under luctuating environmental conditions. Emergence tests of durum wheat landraces from across the Mediterranean region, alongside with elite Israeli durum wheat cultivars, showed signiicant advantage of these pre- “Green Revolution” cultivars to emerge from soil-depth. While the durum Israeli cultivars germinated poorly from 10cm depth, several durum landraces show improved emergence rate, establishment and early vigor. Our results demonstrate the potential of using alternative dwaring genes to improve wheat seedling survival under luctuating environmental conditions and enhance yields.

Options Méditerranéennes : Série A. Séminaires Méditerranéens; n. 110

Scientific Publication
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