Effects of Osmotic Stress Induced by Peg and NaCl on the Germination and Early Growth of Mung Bean

Date Received: Oct 15, 2018

Date Accepted: Oct 19, 2018

Date Published: Oct 22, 2018

DOI: https://doi.org/10.31817/vjas.2018.1.2.03

Views

2899

Download

551

Issue: Vol. 1 No. 2 (2018): Vietnam Journal of Agricultural Sciences

Section:

ENGINEERING AND TECHNOLOGY

How to Cite:

Vu, T., Bui, K., Dong, G., Tran, T., Le, T. C., & Vu, C. (2018). Effects of Osmotic Stress Induced by Peg and NaCl on the Germination and Early Growth of Mung Bean. Vietnam Journal of Agricultural Sciences, 1(2), 134–141. https://doi.org/10.31817/vjas.2018.1.2.03

Effects of Osmotic Stress Induced by Peg and NaCl on the Germination and Early Growth of Mung Bean

Thang Ngoc Vu (*) 1 , Khuynh The Bui 1 , Gioi Huy Dong 2 , Tuan Anh Tran 1 , Tuyet Cham Thi Le 1   , Chinh Dinh Vu 1

  • Corresponding author: vungocthang@vnua.edu.vn
  • 1 Faculty of Agronomy, Vietnam National University of Agriculture, Hanoi 131000, Vietnam
  • 2 Faculty of Biotechnology, Vietnam National University of Agriculture, Hanoi 131000, Vietnam

    • Keywords

    germination, mung bean, NaCl, PEG (polyethylene glycol)

    Abstract


    This study was performed to evaluate the effects of osmotic stress (measured by different water potentials) induced by Polyethylene Glycol 6000 (PEG) and NaCl solutions at the germination stage of five mung bean varieties (DX11, DX208, DX14, DX17, and DX22). Five water potentials: 0 (control), -0.15, -0.49, -1.03, and -1.76 Mpa were used as treatments in this study. The germination rates, root and shoot lengths, root and shoot fresh weights, and dry weights of the plants were measured. The results showed that the germination rate of the mung bean varieties decreased with increased NaCl or PEG concentrations. The germination rates of the mung bean varieties in the PEG treatments were higher than those in the NaCl treatments. In addition, low water potentials induced by NaCl (-1.76 Mpa and -1.03 Mpa) inhibited germination and seeding growth of all the mung bean varieties. The growth parameters of the mung bean seedlings, such as root and shoot lengths, fresh weights of roots and shoots, and plant dry weights, were reduced under low water potentials treated with either PEG or NaCl. However, more severe damage in seedling growth was observed in the NaCl induced treatments. Amongst five mung bean varieties used in this study, DX17 was more drought and salt tolerant than the other mung bean varieties.

    References

    Alam M. Z., Stuchbury T. and Naylor R. E. L. (2002). Effect of NaCl and PEG induced osmotic potentials on germination and early seedling growth of rice cultivars differing in salt tolerance. Pakistan Journal of Biological Sciences. Vol 5 (11). pp. 1207-1210.

    Almansouri M., Kinet J. M. and Lutts S. (2001). Effect of salt and osmotic stresses on germination in durum wheat (Triticum durum Desf.). Plant and Soil. Vol 231. pp. 243-254.

    Almas D. E., Bagherikia S. and Mashak K. M. (2013). Effects of salt and water stresses on germination and seedling growth of Artemisia vulgaris L. International Journal of Agriculture and Crop Sciences. Vol 6 (11). pp. 762-765.

    Bansal R. P., Bhati P. R. and Sem D. N. (1980). Differential specificity in water inhibition of Indian arid zone. Biologia Plantarum. Vol 22 (5). pp. 327-331.

    Bewley J. D. and Black M. (1994). Seeds-physiology of development and germination. Plenum Press, New York.

    Demir I. and Mavi K. (2008). Effect of salt and osmotic stresses on the germination of pepper seeds of different maturation stages. Brazilian Archives of Biology and Technology. Vol 51 (5). pp. 897-902.

    Finch Savage W. E and Bassel G. W. (2016). Seed vigour and crop establishment: extending performance beyond adaptation. Journal of Experimental Botany. Vol 67 (3). pp. 567-591.

    Hampson C. R. and Simpson G. M. (1990). Effects of temperature, salt and osmotic potential on early growth of wheat (Triticum aestivum) II. Early seedling growth. Canadian Journal of Botany. Vol 68. pp. 529-532.

    Katembe W. J., Ungar I. A. and Mitchell J. P. (1998). Effects of salinity on germination and seedling growth of two Atriplex species (Chenopodiaceae). Annals of Botany. Vol 82. pp. 167-175.

    Khajeh-Hosseini M., Powell A. A. and Bingham I. J. (2003). The interaction between salinity stress and seed vigor during germination of soybean seeds. Seed Science and Technology. Vol 31. pp. 715-725.

    Murillo-Amador B. R., Lopez-Aguilar R., Kaya C., Larrinaga-Mayoral J. and Flores-Hernandez A. (2002). Comparative effects of NaCl and Polyethylene Glycol on germination, emergence and seedling growth of cowpea. Journal of Agronomy and Crop Science. Vol 188. pp. 235-247.

    Nayer M. and Reza H. (2008). Water stress induced by polyethylene glycol 6000 and sodium chloride in two maize cultivars. Pakistan Journal of Biological Sciences. Vol 11. pp. 92-97.

    Roundy B. A., Young J. A. and Evans R. A. (1985). Germination of basin wild rye and tall wheat grass in relation to osmotic and metric potential. Agronomy Journal. Vol 77. pp. 129-135.

    Sadeghian S. Y. and Yavari N. (2004). Effect of water-deficit stress on germination and early seedling growth in sugar beet. Journal of Agronomy and Crop Science. Vol 190. pp. 138-144.

    Wilson D. R., Jamieson P. D., Jermyn W. A. and Hanson. R. (1985). Models of growth and water use of field pea (Pisum sativum L.). In: (ed. Hebblethwaite P.D., Heath M. C. and Dawkins T. C. K.) The Pea Crop. Butterworths, London, UK.