Development of aluminium toxicity tolerance system for sorghum in agro ecological region three of Zambia
Abstract
162 words
The overall objective of this study was to characterize selected
sorghum varieties for Aluminium (Al) tolerance. The specific
objectives were to determine performance of selected sorghum
varieties grown in Al prone environments, identify root
characteristics associated with Al tolerance and to develop a
selection criterion for Al tolerance in sorghum.Twenty sorghum
genotypes were evaluated in the field at three sites with high
soil Al levels and in the laboratory for aluminium tolerance were
characterized. Based on the results obtained in the laboratory
and field analysis, the top 10 entries that showed Al toxicity
tolerance and high grain yield were entries 1,2,3,6,8, 11, 12, 16,
17 and 20. Among these, the top seven in the laboratory analysis
were entries 2, 3, 12, II, 17, 16 and 20. The top seven in the
field analysis were entries 1, 6, 8, II, 17, 16 and 20. Therefore
the best perfomers in both the laboratory and field analysis
were entries 11, 17, 16 and 20 score.
Subjects
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