Abstract
Background: Saline stress is an important environmental factor that limits the productivity
of numerous agricultural crops, such as onion (Allium cepa L.), a vegetable present in gardens
and used in various ways. Pulegone has been identified as a component that has a large number of
biological functions.
Objective: The aim of this study was to investigate the effect of pulegone (100 and 500 μg/mL) on
the morphological and biochemical changes to onions induced by stressing seeds with NaCl.
Methods: Soil composition, emergence percentage and its inhibition, emergence speed index (ESI),
leaf and root parameters, malondialdehyde (MDA) content, free iron content and chelation/oxidation
capacity (Fe2+) were measured following 120 days of treatment.
Results: Pulegone was able to significantly improve the changes in ESI caused by saline stress, not
restoring other emergence parameters. The leaf size was also improved by the pulegone, which did
not affect the morphological changes of the roots.
Conclusion: Our results suggest that the use of pulegone is a viable treatment to mitigate the effects
of salt stress on A. cepa seeds.
Keywords:
Allium cepa, pulegone, emergence, saline stress, phytotoxicity, chelating activity.
Graphical Abstract
[22]
Karuku, G.N.; Mbindah, B. Validation Of Aquacrop Model For Simulation Of Rainfed. Trop. Subtrop. Agroecosystems, 2020, 23, 1-11.
[23]
Meena, R.P. Bio-efficacy of plant extracts for management of purple blotch disease of onion (Allium cepa). Indian Phytopathol., 2012, 65(3), 253-257.
[30]
Nihayah, B.A. The response of growth rate in different husk biochar application of Allium cepa l in sandy soil. IOP Conference Series: Earth and Environmental Science, 2020.
[31]
Patidar, A.; Kumar, R. Kumar. U.; Kemro, I.K. A studies on the effect of different organic sources on onion (Allium cepa L.) productivity and soil health. J Pharmacogn. Phytochemistry, 2019, 8(3), 1069-1072.
[34]
Jat, M.K.; Tikkoo, A.; Yadav, P.K.; Yadav, S.S.; Yadav, P.V.S. Effect of integrated nutrient management on yield, soil fertility and economics in Abelmoschus esculentus-Allium cepa cropping system in semi arid zone of Haryana. J Pharmacogn. Phytochemistry, 2017, 6(4), 1142-1145.
[35]
Auge, K.D.; Assefa, T.M.; Woldeyohannes, W.H.; Asfaw, B.T. Potassium adsorption characteristics of five different textured soils under enset (Ensete ventricosom cheesman) farming systems of Sidama zone. South Ethiopia. J. Soil Sci. Environ. Manage., 2018, 9(1), 1-12.
[41]
Ozhan, N.; Hajibabaei, M. Studies on Effectiveness of Plant Phytohormones in Reduction of Salinity Effects on Germination of Some cultivar of spring wheat. Int. J. Adv. Biol. Biomed. Res., 2014, 2(12), 2860-2866.
[46]
Sudha, G.S.; Riazunnisa, K. Effect of salt stress (NaCl) on morphological parameters of onion (Allium cepa L.) seedlings. Int. J. Plant Animal Environ. Sci., 2015, 5(4)
[51]
Hussein, M.M.; Faham, S.Y.; Alva, A.K. Role of foliar application of nicotinic acid and tryptophan on onion plants response to salinity stress. J. Agric. Sci., 2014, 6(8), 41.