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Abstract
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Article Information:
Effects of Salinity on Yield and Yield Components of tef [Eragrostis tef (Zucc.) Trotter] Accessions and Varieties
Kinfemichael Geressu Asfaw and Fisseha Itanna Danno
Corresponding Author: Kinfemichael Geressu Asfaw
Submitted: 2010 November, 29
Accepted: 2010 December, 25
Published: 2011 July, 15 |
Abstract:
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This study aimed to screen fifteen low land tef genotypes (10 accessions and 5 varieties) with
respect to yield and yield components at 0dS/m (control), 2, 4, 8 and 16 dS/m salinity levels and data analysis
was carried out using SAS package (SAS version 8.2, 2001). The two ways ANOVA showed significant
variation with respect to Main Panicle Length (MPL), Peduncle Length (PDL), number of spikelets per main
panicle (SP/MP), number of Primary Panicle Branch per Main Panicle (PPB/MP), Main Panicle Dry Weight
(MPDW) and Grain Yield per Main Panicle (GY/MP) at p<0.001 for both accessions/varieties and treatment.
On the other hand, accession/variety*treatment interaction effect was significant for MPDW (p<0.001) and
SP/MP (p<0.01). This implies that all the accessions and varieties respond to salinity stress differently with
respect to these two characters. However, the accession/variety*treatment interaction for the rest characters was
insignificant reflecting that the entire varieties and accessions react to salinity stress similarly. Accession
236514, varieties DZ-Cr-358 and DZ-01-1681 were salt sensitive genotypes whereas accession 237186 and
variety DZ-cr-37 were salt tolerant genotypes of all. Generally, the study revealed the presence of broad
intraspecific genetic variation in tef accessions and varieties for salt tolerance but more in the former.
Irrespective of salinity being a growing problem in Ethiopia in general and the Awash valley in particular, only
little has been done on crops salt tolerance. Therefore, to alleviate the already existing and the inevitable
incoming salinity problem, there should be similar and profound studies on tef and other crops.
Key words: Grain yield, panicle, peduncle, salinity, spikelet number, yield components,
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Cite this Reference:
Kinfemichael Geressu Asfaw and Fisseha Itanna Danno, . Effects of Salinity on Yield and Yield Components of tef [Eragrostis tef (Zucc.) Trotter] Accessions and Varieties. Current Research Journal of Biological Sciences, (4): 289-299.
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ISSN (Online): 2041-0778
ISSN (Print): 2041-076X |
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