한국초지조사료학회지 (JKSGFS) Vol. 39 No. 3 (p.148-152)

|Research Article|
Extreme pH Reduced Vegetative Growth and Biomass Accumulation in Alfalfa

키워드 :
Extreme pH,Growth,Biomass yield,Alfalfa

목차

ABSTRACT
Ⅰ. INTRODUCTION
Ⅱ. MATERIALS AND METHODS
   1. Plant growth and treatments
   2. Determination of alfalfa growth and biomass accumulation
   3. Measurement of chlorophyll content
   4. Statistical analysis
Ⅲ. RESULTS AND DISCUSSION
Ⅳ. Conclusion
Ⅴ. ACKNOWLEDGMENTS
Ⅵ. REFERENCES

초록

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.