Breeding soybean for resistance to iron-deficiency chlorosis and soybean cyst nematode

Iron-deficiency chlorosis (IDC) and soybean cyst nematode (SCN) result in yield and income losses for soybean growers in the U.S. Breeding programs are identifying soybean genotypes with resistance to IDC using calcareous soils infested with SCN, where SCN might interfere with evaluation. Our first...

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Bibliographic Details
Published in:Soil science and plant nutrition (Tokyo) 2004-12, Vol.50 (7), p.1055-1062
Main Authors: Charlson, D.V. (Iowa State Univ., Ames (USA)), Bailey, T.B, Cianzio, S.R, Shoemaker, R.C
Format: Article
Language:English
Subjects:
CHLOROSIS
GLYCINE MAX
Heterodera glycines
IRON
iron efficiency
PLANT BREEDING
PLANT NEMATODES
quantitative traits
RESISTANCE TO INJURIOUS FACTORS
stress resistance breeding
TRACE ELEMENT DEFICIENCIES
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Summary:Iron-deficiency chlorosis (IDC) and soybean cyst nematode (SCN) result in yield and income losses for soybean growers in the U.S. Breeding programs are identifying soybean genotypes with resistance to IDC using calcareous soils infested with SCN, where SCN might interfere with evaluation. Our first objective was to examine whether associations could be established for chlorosis symptoms with SCN infestation of soybean grown on SCN-infested calcareous soils. Two breeding populations, their parents, and five SCN-susceptible, IDC-control genotypes (IDC controls) were evaluated for IDC symptoms on SCN-infested calcareous soils in 2000 and 2001. In general, no significant correlations were detected between chlorosis expression and SCN infestation in either year, although a negative correlation (r=?0.93, p
ISSN:0038-0768
1747-0765
DOI:10.1080/00380768.2004.10408574