The Effect of Humic Acid on Seed Germination and Seedling Growth Characteristics of Three Varieties of Radish in salinity stress

Document Type : Research Paper

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Abstract

To reduce the effects of salt stress in plants used different ways at different stages of plant growth, including germination .Humic acid is a natural substance and has positive effects on plant growth. In this experiment  was investigated the effects of humic acid on germination characteristics of three varieties of radish under salinity stress. A factorial experiment in a completely randomized design with three replications. Treatments include three varieties of radish(Cherry bell, Sparkler and Scarlett Cincinnati as the first factor and humic acid on four levels (control, 0.5, 1.5 and 2 grams per liter) as the second factor and salinity at four levels (control, 1.5, 5 and 7.5 dS/m) as a third factor. In this experiment was evaluated germination characteristics such as Shoot and root lenght, fresh and dry weight of seedling, allometric coefficient, speed and percentage of germination. Under salt stress, the use of humic acid increased the shoot length, fresh weight of seedling and speed of germination in radish varieties but the length of root, allometric coefficient, dry weight of seedling and percentage of germination was a non-significant . In salt stress conditions, the use of humic acid at 1.5 g /L was increased maximal effect on root length and fresh weight of seedling and concentration of 2 g /L increased germination rate. The results revealed radish varieties showed different responses. Scarlett allocated to the highest shoot length, fresh weight of seedling, speed and percentage of germination and The highest root lenght and allometric coefficient was related to the Sparkler. Cherry bell had least germination characteristics in salinity salinity even with the application of humic acid.

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References

Ardalan, H. 2011. Effects of seed priming on germination behavior and morphological and biochemical characteristics of pepper seedlings under salt stress conditions. Senior under Graduate Thesis, Ferdowsi University of Mashhad. (In Persian)(Thesis)
Ashraf, M. and Harris, P.J.C. 2004. Potential biochemical indicators of salinity tolerance in plants. Journal of Plant Science, 166: 3-16. (In Persian)(Journal)
Ayuso, M., Hernández, T. and García, T. 1996 . Effect of humic fractions from urban wastes and other more evolved organic materials on seed germination. Journal of the Science of Food and Agriculture, 72(4): 461-468. (Journal)
Atiyeh, R.M., Arancon, N.Q., Edwards, C.A. and Metzger, J.D. 2000a. Influence of earthworm-processed pig manure on the growth and yield of greenhouse tomatoes. Bioresource Technology, 75(3): 175–180. (Journal)  
Bic Khurmizy, A.S. 2011. Effect of vermicompost on growth and salt tolerance characteristics, the brilliant red beans. Senior under Graduate Thesis, Ferdowsi University of Mashhad. (In Persian)(Thesis)
Hosseini, H. and Nassiri-Mahalati, M. 2006. Effect of seed priming on germination of lentil genotypes. Journal of Agricultural Research, 4(1): 35-47. (In Persian)(Journal)
Honglan, L., Jingfu, L., Xiangyang, X., Li, U. and CUI-Li, H. 2008 . Influence of salt concentration on germination of different tomato seeds. Journal of Northeast Agriculture, 10(3): 54-67. (Journal)
Jalili Marandi, B. 2010. Environmental stress physiology and mechanisms of resistance in horticultural plants (trees, fruits, vegetables, ornamental plants and herbs). SID West Branch. (In Persian)(Book)
Kafi, M., Salehi, M. and Eshghizadeh, H. 2009. Saline Agriculture Environment : Strategies for the management of plants, soil and water. Ferdowsi University of Mashhad Press. (In Persian)(Book)
Khazaei, H., Nezami, A., Eyshy-Rezaei, A., Saeed Nejad, A. and Pour Amir, P. 2012. Effect of humic substances concentrations as a pre-treatment on germination and seedling characteristics of two cultivars of triticale. Journal of Agricultural Ecology, 4(4): 273-281. (In Persian)(Journal)
Kauser, A. Malik, F. and Azam, F. 1985. Effect of humic acid on wheat (Triticum aestivum L.) seedling growth. Environmental and Experimental Botany, 25(3): 245-252. (Journal)
Kolsarıcı, Ö., Kaya, M.D., Day, S., İpek, A. and Uranbey, S. 2005. Farklı hümik asit dozlarının ayçiçeğinin (Helianthus annus L.) çıkış ve fide gelişimi üzerine etkileri, Akdeniz Üniversitesi Ziraat Fakültesi Dergisi,18:151-155. (Journal)
Lezi, A., Fambrini, M., Barotti. S., Pugliesi, C. and Vernieri, P. 1995. Seed germination and seedling growth in wilty mutant of sunflower (Helianthus annus L.): Effects of abscisic acid and osmotic potential. Environmental and Experimental Botany, 35: 427-434. (Journal)
Masciandaro, G., Ceccanti, B., Ronchi, V., Benedicto, S. and Howard, L. 2002. Humic substances to reduce salt effect on plant germination and growth. Plant Analysis, 33(3&4): 365–378. (Journal)
Muscolo, A., Bovalo, F., Gionfriddo, F. and Nardi, F. 2005. Earthworm humic matter produces auxin-like effects on Daucus carota cell growth and nitrate metabolism. Soil Biology and Biochemistry, 31: 1303–1311. (Journal)
Munns, R. 2002. Comparative physiology of salt and water stress. Plant, Cell and Environment, 25: 239-250. (Journal)
Paksoy, M., Türkmen, Ö. and Dursun, A. 2010. Effects of potassium and humic acid on emergence, growth and nutrient contents of okra (Abelmoschus esculentus L.) seedling under saline soil conditions. African Journal of Biotechnology, 9 (33): 5343-5346. (Journal)
Puri, K., Akbari, P. and Ghaderi Far, F. 2012. Deteriorated seeds reaction to salt stress during germination and seedling growth of cotton. Journal of Plant Production Research, 19(2): 53-66. (In Persian)(Journal)
Sirritepe, N., Sivritepe, H.O. and Erif, A. 2003. The effects of Nacl priming on salt tolerance in melon seedling grown under saline condition. Scientia Horticulture, 97: 229-237. (Journal)
Taize, L. and Zaiger, E. 2002. Plant Physiology. 660 pp. (Book)
Warman, P.R. and Anglopez, M.J. 2010. Vermicompost derived from different feed stocks as a plant growth medium. Bioresource Technology, 101: 4479-4483. (Journal)
 Young Jun, C., Dong Chan, W. and Hee-Don, C. 2003. Effects of soil EC on emergence rate, seedling growth, and physiological disorders of leafy and root vegetable crops, and diminishing effect of soil EC level by washing with water or manure addition. Journal of the Korean Society for Horticultural Science, 44(5): 575-581. (Journal)
Yuan-Min, C., Shi-Mao, C., Yan, Z. and Naosuke. F. 2010. Effect of Nacl stress on germination charactristics of carrot varieties in different region. Journal of Inner Mongolia Agriculture, 7(4): 91-109. (Journal)
Iranian Journal of Seed Sciences and Research
Volume 3, Issue 4
January 2017
Pages 29-41

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