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Variation in vernalization and photoperiod response in tetraploid wheat ( Triticum turgidum dicoccoides) ecotypes ( Triticum aestivum).
Year:
1982
Source of publication :
Journal of Applied Ecology
Authors :
קושניר, אורי
;
.
Volume :
19
Co-Authors:
Kushnir, U.
Halloran, G.M.
Facilitators :
From page:
545
To page:
554
(
Total pages:
10
)
Abstract:
Five lines of tetraploid wheat Triticum turgidum dicoccoides from 2 contrasting wild habitats in Israel, and 2 hexaploid wheat T. aestivum vulgare cultivars, one of spring habit, the other winter habit, were compared for responses to vernalization and photoperiod. Responses of dicoccoides were within the ranges observed for the hexaploid cultivars. However, there were differences in the levels of responses of the dicoccoides lines from the two habitats, those from the habitat with the shorter-growing season (Bet Shean Valley) having generally lower levels of vernalization and photoperiod response than those from habitat with the longer-growing season (Mt Hermon Slopes). These differences indicate the occurrence of genetic differentiation amongst 'wild' populations of this species for developmental responses. The spring habit of T. turgidum dicoccoides arose from winter habit forms. Within-population differences were also observed for these characters, indicating that the 'wild' populations of dicoccoides are most likely to be genetically polymorphic for developmental responses.-Authors School of Agric. & Forestry, Univ. of Melbourne, Parkville, 3052 Victoria, Australia.
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Database:
סקופוס
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Language:
אנגלית
Editors' remarks:
ID:
24916
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:11
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Scientific Publication
Variation in vernalization and photoperiod response in tetraploid wheat ( Triticum turgidum dicoccoides) ecotypes ( Triticum aestivum).
19
Kushnir, U.
Halloran, G.M.
Variation in vernalization and photoperiod response in tetraploid wheat ( Triticum turgidum dicoccoides) ecotypes ( Triticum aestivum).
Five lines of tetraploid wheat Triticum turgidum dicoccoides from 2 contrasting wild habitats in Israel, and 2 hexaploid wheat T. aestivum vulgare cultivars, one of spring habit, the other winter habit, were compared for responses to vernalization and photoperiod. Responses of dicoccoides were within the ranges observed for the hexaploid cultivars. However, there were differences in the levels of responses of the dicoccoides lines from the two habitats, those from the habitat with the shorter-growing season (Bet Shean Valley) having generally lower levels of vernalization and photoperiod response than those from habitat with the longer-growing season (Mt Hermon Slopes). These differences indicate the occurrence of genetic differentiation amongst 'wild' populations of this species for developmental responses. The spring habit of T. turgidum dicoccoides arose from winter habit forms. Within-population differences were also observed for these characters, indicating that the 'wild' populations of dicoccoides are most likely to be genetically polymorphic for developmental responses.-Authors School of Agric. & Forestry, Univ. of Melbourne, Parkville, 3052 Victoria, Australia.
Scientific Publication
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