Work

The Apple Replant Problem in Washington State1

Year: 1978

Type: article

Abstract: The growth of apple seedlings ( Malus domestica Brokh.) is negatively correlated with soil arsenic and zero growth occurs at about 450 ppm total arsenic. Soil arsenic concentrations less than 150 ppm, which are frequently found in orchard soils, contribute less to the replant problem than biological factors. Growth of apple trees was increased 50% or more by preplant soil fumigation with methyl bromide or trichloronitromethane (chloropicrin) in 87.5% of the trials in 17 apple orchard soils tested. Non-specific plant pathogens in orchard soils attack cereals as well as apple seedlings, but apple orchard soils also contain an entity that specifically affects apples. This is probably the same unknown entity that is responsible for specific apple replant disease in Europe, Australia, and elsewhere.

Source: Journal of the American Society for Horticultural Science

DOI: 10.21273/jashs.103.2.156

Authors: N. R. Benson, R. P. Covey, W. Haglund

Institution: Washington State University

Language: English

Topic: Plant Disease Management Techniques

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDGs: Zero hunger, Life on land

Open Access status: hybrid

Estimated APC paid: $3,500