Welcome to International Network for Natural Sciences | INNSpub

Assessment of hydro-priming on overcoming the allelopathic effect of walnut leave aqueous extract on seed germination and seedling growth

Research Paper | January 1, 2013

| Download 3

Hossein Khoshvaghti, Ramin Lotfi

Key Words:

Int. J. Biosci.3( 1), 94-100, January 2013


IJB 2013 [Generate Certificate]


Juglone (5-hydroxy-1,4-naphthoquinone) is an allelochemical responsible for walnut allelopathy. In order to assess the effects of hydro-priming on overcoming the allelopathic stress of walnut leave aqueous extract (control, 1.5, 3 and 6 percent) on seed germination and seedling growth of wheat and corn a laboratory experiment was conducted in University of Payame noor, Iran. Results showed that with increasing of walnut leave aqueous extract, especially sever concentration (6 %), germination percentage, shoot length of wheat and corn were inhibited. Root length and germination rate of corn and root dry weight of wheat were also declined with increasing of extract concentration. The highest germination percentage and root length of wheat were obtained by seeds hydro-primed. However, seeds of corn were not affected by hydro-priming. Significantly interaction of extract × hydro-priming on shoot dry weight suggested that hydro-priming can improve seedling growth of wheat under juglone allelochemical conditions. Therefore, hydro-priming can be used to promote seed germination and seedling growth of wheat seeds and may be beneficial to the arrangement of intercropping system(s) of juglone-sensitive species between walnut trees in the same field.


Copyright © 2013
By Authors and International Network for
Natural Sciences (INNSPUB)
This article is published under the terms of the Creative
Commons Attribution Liscense 4.0

Assessment of hydro-priming on overcoming the allelopathic effect of walnut leave aqueous extract on seed germination and seedling growth

Abdulrahmani B, Ghassemi-Golezani K, Valizadeh M, Feizi-Asl V. 2007. Seed priming and seedling establishment of barely (Hordeum vulgare L.). J. Food Agric. Environ. 5, 179-184.

Bray CM, Davison PA, Ashraf M, Taylor RM. 1989. Biochemical changes during priming of leek seeds. Ann. Bot. 63, 185-193.

Chao SH, Greenleaf AL, Price DH. 2001. Juglone, an inhibitor of the peptidylprolyl isomerase Pin l, also directly blocks transcription. Nucl. Acid Res. 29, 767-773.

Davis EF. 1928. The toxic principle of Juglans nigra as identified with synthetic juglone and its toxic effects on tomato and alfalfa plants. Amer. J. Bot. 15, 620-1928.

Dell’Aquila A, Bewley JD. 1989. Protein synthesis in the axes of polyethylene glycol treated pea seeds and during subsequent germination. J. Exp. Bot. 40, 1001-1007.

Ellis RH, Roberts EH. 1981. The quantification of ageing and survival in orthodoxes seeds. Seed Sci. and Technol. 9, 373-409.

Florentine SK, Westbrooke ME, Gosney K, Ambrose G, O’Keefe M. 2006. The arid lands invasive weed Nicotiana glauca R. Graham (Solanaceae): Population and soil seed bank dynamics, seed germination patterns and seedling response to flood and drought. J. Arid Environ. 66, 218-230.

Ghassemi-Golezani K, Jabbarpour S, Zehtab-Salmasi S, Mohammadi A. 2010. Response of winter rapeseed (Brassica napus L.) cultivars to salt priming of seeds. Afr. J. Agric. Res. 5, 1089-1094.

Ghassemi-Golezani K, Sheikhzadeh Mosaddegh P, Valizadeh M. 2008. Effects of hydro-priming duration and limited irrigation on field performance of chickpea. Res. J. Seed Sci. 1, 34-40.

Hejl AM, Einhellig FA, Rasmussen J. 1993. Effects of juglone on growth, photosynthesis and respiration. J. Chem. Ecol. 19, 559- 568.

Herro JL, Callaway RM. 2003. Allelopathy and exotic plant invasion. Plant and Soil, 256, 29-39.

Jose S, Gillespie AR. 1998. Allelopathy in black walnut (Juglans nigra L.) alley cropping: I. Spatio-temporal variation in soil juglone in a black walnut-corn alley cropping system in the Midwestern U.S. Plant Soil, 203, 191-197.

McDonald MB. 1999. Seed deterioration: Physiology, repair and assessment. Seed Sci. Technol. 27, 177-237.

McWhorter CG. 1984. Future needs in weed science. Weed Science 32, 850-855.

Perry, D.A. 1977. A vigour test for seed of barley (Hordeum vulgare L.), based on measurement of plumule growth. Seed Sci. and Technol. 5, 709-719.

Prataviera AG, Kuniyuki AH, Ryugo K. 1983. Growth inhibitors in xylem exudates of Persian walnuts (Juglans regia L.) and their possible role in graft failure. J. Amer. Soc. Hort. Sci. 108, 1043-1045.

Rice EL. 1974. Allelopathy. Academic, New York.


Rice EL. 1984. Allelopathy, 2nd Ed. Academic Press, New York, p. 421.

Rietveld WJ. 1983. Allelopathic effects of juglone on germination and growth of several herbaceous and woody species. J. Chem. Ecol. 9, 295-308.

Rizvi SJH, Rizvi V. 1992. Allelopathy; Basic and Applied  Aspects,  Chapman  and  Hall.  New  York, USA, p. 480.

Segura-Aguilar  J,  Hakman  I,  Rydström  J. 1992. The effect of 5 OH 1, 4-naphthoquinone on Norway  spruce  seeds  during  germination.  Plant Physiol. 100, 1955-1961.

Terzi I. 2008. Allelopathic effects of juglone and decomposed walnut  leaf juice on muskmelon and cucumber  seed  germination  and  seedling  growth. Afr. J. Biotech. 7, 1870-1874.

Terzi I. 2009. Allelopathic effects of juglone and walnut   leaf  and  fruit  hull  extracts   on   seed germination and seedling growth in muskmelon and cucumber. Asia. J. Chem. 21, 1840-1846.