Hydroponic Testing of Iron Deficiency Chlorosis in Soybeans

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2017-04-11
Authors
Kurtz, Sarah
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Altmetrics
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Agronomy
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Agronomy
Abstract

In many Iowa soybean fields, Iron Deficiency Chlorosis (IDC) is a problem that causes stunting in plants and yield loss. IDC resistance in soybeans is currently not being screened for in the greenhouse. The objective of this project is to efficiently test soybeans for IDC resistance in the greenhouse in a hydroponic system. This allows for yearlong testing, which saves time, money, and space. To accomplish this, previous work with hydroponic IDC testing was modified to screen hundreds of lines rather than a small amount. Ten different forms of media were tested for iron content and IDC symptoms. It has been concluded that LECA, Growstones, and pumice have shown desirable symptoms while being the most efficient media when hydroponically testing iron deficiency chlorosis resistance in soybeans.

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