NDLI: Phenotypic variation in barley (Hordeum vulgare L.) landraces from north Shewa in Ethiopia

Content Provider	Springer Nature Link
Author	Assefa, Allemayehu Labuschagne, Maryke T.
Copyright Year	2004
Abstract	An experiment was conducted in a greenhouse to estimate the level of morphological variability within 44 barley landraces (14 farmers' cultivars and 30 accessions) from north Shewa in Ethiopia. Four qualitative traits (spike type, kernel color, caryopsis type and spike density) were recorded. Variation in spike type (two-rowed, irregular or six-rowed) was high in many landraces. Variability in spike type within landraces from Debre Libanose, Kuyu and Girar Jarso was high. The highest mean frequencies of the six-row type were recorded for Ankober-Mezezo (85%) and Kimbibit (80.9%). The two-row types were dominant in Wuchale (53.3%), while they were absent at the Ankober-Mezezo, Debre Libanose and Kimbibit localities. A larger proportion of the irregular types occurred in Debre Libanose (71.3%), followed by Kuyu (62.6%). Diversity for kernel color was generally low except in landraces from Kuyu, but it was very high among landraces. White kernel color was predominant. The mean diversity index pooled over characters ranged from 0.12 ± 0.08 to 0.57 ± 0.11, and 11 landraces had a mean diversity larger than 0.50. Differences among landraces within localities were mostly highly significant for all characters except that of caryopsis type (covered or naked). Landraces from Girar Jarso, Wuchale, and Kuyu in particular differed significantly in spike type and kernel color. Unlike farmers' cultivars, the accessions were found to be more variable in spike type and kernel color. Moreover, the mean diversity indices pooled over characters were relatively higher in the accessions than within farmers' cultivars.
Starting Page	1441
Ending Page	1451
Page Count	11
File Format	PDF
ISSN	09603115
Journal	Biodiversity and Conservation
Volume Number	13
Issue Number	8
e-ISSN	15729710
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2004-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Evolutionary Biology Tree Biology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics Nature and Landscape Conservation

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