Field and greenhouse evaluation of the components of partial resistance to early leafspot in peanut

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CC Green; JC Wynne

Type of Document:
Scholarly Article



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Not Available


Abstract: Ten peanut (Arachis hypogaea L.) genotypes were evaluated fro components of partial resistance to Cercospora arachidicola Hori in the field and in two detached leaf tests in the greenhouse. The relationships among the resistance components in the two environments were examined by computing rank correlations among the components measured in the greenhouse and among those measured in the field. A comparison of field and greenhouse testing for partial resistance was made by determining the correlations between components measured in the two testing methods. The genotypes were significantly different for all the components of resistant measured in the field and for most of the components measured in the greenhouse. In the field study necrotic area/10 cm2 leaf area was moderately correlated (r=0.58) with lesion number/10 cm2 leaf area and highly correlated (r=0.71

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