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expand all sections collapse all sections  Oryza sativa QTL "CQI5"
ID 51370
Name CQI5 (QTL ACCESSION {description)
Synonyms (1) CQI5-KCONC
TO TERM {descriptionTO:0000513 (potassium concentration)
Trait Namepotassium concentration
Trait SymbolKCONC
Type QTL
Species Oryza sativa (Oryza sativa) [ GR_tax:013681 ]
Germplasm
Description K ion concentration (mmol per g) in the shoot as the product of concentration
and dry mass. Three completely randomized blocks containing all the lines were
grown at the same time. The hydroponic culture solution was salinized at 10
days after planting, by slowly adding 5 M NaCl to the header tank of a
recirculating pump so that the concentration rose gradually to 50 mM over a
period of about 24 h and was maintained for 12 d, after which the concentration
was increased to 100 mM for a period of 8 days. The shoots were then harvested,
dried, weighed, and extracted in 100 mM acetic acid for 2 h at 90°C. Sodium and
potassium were determined in the extract by atomic absorption spectroscopy
(Unicam 919, Unicam, Cambridge, UK). QTL analysis was performed using the
marker regression approach using the software package QTL Café. Associations
between genetic markers and traits were detected by single-marker ANOVA for
each trait using GENSTAT (P < 0.005).
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