Phenotypic variation in root development of 162 soybean accessions under hypoxia condition at the seedling stage

Keisuke Suematsu, Tomomi Abiko, Loc Van Nguyen, Toshihiro Mochizuki

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Soybean is often damaged by hypoxia caused by waterlogging at the seedling stage. Hypoxia severely inhibits root development and retards plant growth. We aimed to clarify phenotypic variation in root development under hypoxia condition at the seedling stage using diverse soybean accessions. Root development in 162 accessions was evaluated in hydroponic culture. Substantial changes under hypoxia were investigated by means of WinRHIZO analysis before and after the treatment. We found significant phenotypic variation in hypoxia tolerance in root among the 162 accessions. A principal components analysis indicated an association between hypoxia tolerance and the country of origin. We found three new accessions which have a high ability to develop roots under hypoxia (Kokubu 7, Maetsue zairai 90B, and Yahagi). Root development in selected accessions was also evaluated in soil culture. Root development levels in hydroponic and soil culture were significantly correlated. These results will provide important information on waterlogging damage in regions where waterlogging occurs. The three accessions with hypoxia-tolerant roots might be useful for genetic improvement of waterlogging tolerance of modern soybean varieties.

Original languageEnglish
Pages (from-to)323-335
Number of pages13
JournalPlant Production Science
Volume20
Issue number3
DOIs
Publication statusPublished - Jan 1 2017

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phenotypic variation
hypoxia
soybeans
seedlings
flooded conditions
hydroponics
genetic improvement
soil
principal component analysis
plant growth

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

Cite this

Phenotypic variation in root development of 162 soybean accessions under hypoxia condition at the seedling stage. / Suematsu, Keisuke; Abiko, Tomomi; Van Nguyen, Loc; Mochizuki, Toshihiro.

In: Plant Production Science, Vol. 20, No. 3, 01.01.2017, p. 323-335.

Research output: Contribution to journalArticle

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