Skip to main content
ARS Home » Midwest Area » Columbus, Ohio » Soil Drainage Research » Research » Publications at this Location » Publication #219382
Title: Diversity in Tolerance of Soybean (Glycine max L. Merr.) Germplasm to Soil Waterlogging

Author
item Vantoai, Tara
item HOA, TRAN THI CUC - CUU LONG RICE RES. INST.
item HUE, NGUYEN THI NGOC - CUU LONG RICE RES. INST.
item NGUYEN, HENRY - UNIVERSITY OF MISSOURI
item SHANNON, GROVER - UNIVERSITY OF MISSOURI
item BISHOP, BERT - THE OHIO STATE UNIVERSITY

Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 5/1/2007
Publication Date: 11/6/2007
Citation: Vantoai, T.T., Hoa, T., Hue, N., Nguyen, H., Shannon, G., Bishop, B. 2007. Diversity in Tolerance of Soybean (Glycine max L. Merr.) Germplasm to Soil Waterlogging. ASA-CSSA-SSSA Annual Meeting Abstracts. Presentation number 278-4(256).

Interpretive Summary:

Technical Abstract: Soybean (Glycine max L. Merr.) cultivars from the U.S. are generally intolerant to flooding stress. Soybean germplasm and cultivars originating from other countries potentially could have better flooding tolerance. Screen house and field tests were conducted to determine differences in waterlogging tolerance of 23 soybean genotypes from Southeast Asia. Waterlogging for 2 weeks at the R2 stage reduced seed yield under field conditions between 37 and 100% (all plants dead). However, plants that survived flooding averaged 29% taller than control plants. Three genotypes, VND2, Nam Vang and ATF15-1 had the best R2 waterlogging tolerance indexes (R2WLTI). Of these, Nam Vang, a landrace from Cambodia, was also tolerant to waterlogging at V4 stage. This line provides a new germplasm resource for the genetic improvement of waterlogging tolerance in soybean. Tolerance to R2 waterlogging was associated with higher number of pods per plant and more seeds per pod, while tolerance to V4 waterlogging was associated with larger seed size. Growth response to waterlogging stress, as determined by plant height, was correlated between the field and screen house. The screen house test could distinguish tolerant from susceptible genotypes based on plant survival and tolerance index.