Journal of The Korean Society of Grassland and Forage Science (한국초지조사료학회지)

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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Extreme pH Reduced Vegetative Growth and Biomass Accumulation in Alfalfa

  • Lee, Ki-Won (Grassland & Forages Division, National Institute of Animal Science, Rural Development Administration) ;
  • Lee, Sang-Hoon (Grassland & Forages Division, National Institute of Animal Science, Rural Development Administration) ;
  • Song, Yowook (Grassland & Forages Division, National Institute of Animal Science, Rural Development Administration) ;
  • Ji, Hee Jung (Grassland & Forages Division, National Institute of Animal Science, Rural Development Administration) ;
  • Kim, Ki-Yong (Grassland & Forages Division, National Institute of Animal Science, Rural Development Administration) ;
  • Choi, Gi Jun (Grassland & Forages Division, National Institute of Animal Science, Rural Development Administration) ;
  • Lim, Eun A (Grassland & Forages Division, National Institute of Animal Science, Rural Development Administration) ;
  • Rahman, Md. Atikur (Grassland & Forages Division, National Institute of Animal Science, Rural Development Administration)
  • Received : 2019.08.21
  • Accepted : 2019.09.10
  • Published : 2019.09.30
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Abstract

Soil acidity or alkalinity are serious limitations for crop production. The purpose of this study was to clarify the negative effects of extreme pH stress (low and high) on alfalfa vegetative growth (VG) and biomass accumulation (BA). Two-week-old alfalfa seedlings were exposed to different pH (4.0, 4.5, 7.0, 8.0 and 8.5, respectively) levels for 72 hours. Alfalfa grown at pH 4.0 and 8.5 significantly reduced VG and BA, wherein as neutral pH (7.0) comparably exhibited better growth and biomass yield. These results indicate that extreme acidic or alkaline level are critical limiting factors for growth and biomass yield in alfalfa.

Keywords

References

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