Journal
PESQUISA AGROPECUARIA BRASILEIRA
Volume 42, Issue 9, Pages 1365-1368Publisher
EMPRESA BRASIL PESQ AGROPEC
DOI: 10.1590/S0100-204X2007000900020
Keywords
phaseolus vulgaris; rating scale; seedling; cultivar
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The objective of this work was to test a simple method for root hair evaluation of 21 common bean ( Phaseolus vulgaris) genotypes, most of them used in breeding programs in Brazil. Hairs of basal and primary roots of 5-day old seedlings, produced on germination paper with no phosphorus addition, were visually evaluated by a rating scale after staining with 0.05% trypan blue. The method reveals variability among the genotypes, and the standard error of the mean is relatively low.
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