GrainGenes Reference Report: AJP-3-512
Reference
AJP-3-512
Title
Root characteristics of drought tolerant bread wheat (Triticum aestivum) genotypes at seedling stage
Journal
Asian Journal of Plant Sciences
Year
2004
Volume
3
Pages
512-515
Author
Gesimba RM Njoka E Kinyua M
Abstract
A study was carried out between March 1999 and April 2000 at the National Plant Breeding Research Station Njoro, Kenya. 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 cultivars 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 0.03 x 1 x 0.3 m 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
Keyword
[ Hide all but 1 of 12 ] characteristics cultivar drought drought resistance genetic variation genotype plant breeding root rooting screening seedling water stress
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GrainGenes Reference Report: AJP-3-512
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||