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Asian Journal of Plant Sciences
  Year: 2004 | Volume: 3 | Issue: 4 | Page No.: 512-515
DOI: 10.3923/ajps.2004.512.515
 
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Root Characteristics of Drought Tolerant Bread Wheat (Triticum aestivum) Genotypes at Seedling Stage

R.M. Gesimba, E. Njoka and M. Kinyua

Abstract:
A study was carried out between March 1999 and April 2000 at the National Plant Breeding Research Station Njoro. The aim of the study was to describe the root characteristics of drought tolerant, moderately tolerant, and susceptible bread wheat genotypes at seedling stage (49 days). Three commercial wheat varieties Duma, Kenya mbweha and Mbuni which are tolerant, moderately tolerant and susceptible, respectively were screened together with three lines R830, R831 and R748 which have also been identified to show drought tolerance characters. The six genotypes were planted in boxes measuring 0.03x1x0.3m after being determined as the best box sizes for screening the roots of wheat seedlings. The rooting patterns were studied. Results showed that drought tolerant genotypes had significantly (p<0.05) more roots in the crown region with the nodal and seminal roots concentrated closer to the soil surface while the susceptible genotypes had fewer roots in the crown region with most of the roots concentrated away from the soil surface.
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How to cite this article:

R.M. Gesimba, E. Njoka and M. Kinyua , 2004. Root Characteristics of Drought Tolerant Bread Wheat (Triticum aestivum) Genotypes at Seedling Stage. Asian Journal of Plant Sciences, 3: 512-515.

DOI: 10.3923/ajps.2004.512.515

URL: https://scialert.net/abstract/?doi=ajps.2004.512.515

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