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ARS Home » Midwest Area » Columbus, Ohio » Soil Drainage Research » Research » Publications at this Location » Publication #105143
Title: DEVELOPMENT OF A GREENHOUSE SCREENING TEST FOR TOLERANCE OF SOYBEAN TO FLOODING (PART 1)

Author
item BORU, GETACHEW - OHIO STATE UNIVERSITY
item Vantoai, Tara
item ALVES, JOSE - UNIV FED DE LAVRAS BRAZIL
item HUA, DUC - OHIO STATE UNIVERSITY

Submitted to: Soybean Research World Conference Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 8/4/1999
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Flooding is damaging to soybean (Glycine max (L.) Merr) growth and seed production. The objective of this research was to develop a fast, large scale greenhouse screening test which can predict the performance of different soybean genotypes in flooded fields. We found that soybean plants in the greenhouse were highly tolerant to standing water and hypoxic conditions. In screening tests using hydroponic solution bubbled with nitrogen or argon gas where the dissolved oxygen levels were as low as 0.1 ppm, soybean plants showed no symptoms of stress. The concentration of oxygen in gas samples obtained from flooded soybean fields were 0.2%; while the concentration of carbon dioxide was as high as 25%. In this paper, we investigated the use of high root zone carbon dioxide as a screening test for tolerance of soybeans to field flooding. Seedlings of three soybean genotypes that were most tolerant to field flooding and three genotypes that were most susceptible were grown in hydroponic solution bubbled with either air, nitrogen gas, or 30% carbon dioxide. The correlation between leaf yellowness determined after one week of carbon dioxide treatment and seed yield in flooded field trials was 0.93 and highly significant. The results indicated that elevated root zone carbon dioxide can be used as a greenhouse screening test for tolerance of soybean to field flooding.