期刊
PLANT PRODUCTION SCIENCE
卷 24, 期 4, 页码 433-439出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/1343943X.2021.1881408
关键词
Flooded conditions; glycine max; phytophthora sojae; soil-borne; disease; soybean
类别
资金
- MEXT/JSPS KAKENHI [19H02943]
- Grants-in-Aid for Scientific Research [19H02943] Funding Source: KAKEN
The study revealed that soybean seedlings that survived Phytophthora sojae infection had poorer root growth compared to non-inoculated plants, with flooding having limited effects on growth parameters.
Phytophthora root and stem rot due to Phytophthora sojae is a major constraint of soybean production. This study evaluated the combined effect of P. sojae inoculation and flooding on growth of soybean seedlings. The soybean cultivar 'Enrei' was grown in a greenhouse in pots containing vermiculite and containers of field soil. The plants were inoculated with two P. sojae isolates and subjected to flooding. The ratio of dead to live plants ranged from 0 to 0.32 across all treatments. Pathogen inoculation caused a significantly shorter maximum root length (MRL) in all the three experiments. MRL and shoot and root dry weight were affected by interaction between inoculation and flooding in one experiment with vermiculite media. Flooding affected the growth parameters only in the experiment with soil media. The results indicated that root of the soybean seedlings that survived from P. sojae infection grew less well than the non-inoculated plants.
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