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Benzone, H.R.L., Rubenecia, M.R.U., Ultra, V.U. and Lee, S.C. (2015) Nanoparticles Fertilizer Affects the Growth, Development, and Chemical Properties of Rice. IJAAR, 7, 105-117.

has been cited by the following article:

  • TITLE: Response of Alfalfa under Salt Stress to the Application of Potassium Sulfate Nanoparticles

    AUTHORS: Mahmoud Samir El-Sharkawy, Talaat Rizk El-Beshsbeshy, Esawy Kasem Mahmoud, Nasser Ibrahim Abdelkader, Rania Mohamed Al-Shal, Ali M. Missaoui

    KEYWORDS: Alfalfa, Nanoparticles, Salt Stress, Potassium

    JOURNAL NAME: American Journal of Plant Sciences, Vol.8 No.8, July 3, 2017

    ABSTRACT: A greenhouse study was conducted to explore the effect of various rates of potassium sulfate (K2SO4) nanoparticles on alfalfa (Medicago sativa L.) growth and physiological response under salt stress. One salt-tolerant genotype (Mesa-Sirsa) and one salt-sensitive genotype (Bulldog 505) were selected based on germination under salt and were planted in pots containing 2 kg of sand. The two genotypes were subjected to 0 and 6 dS·m-1 salt levels using CaCl2·2H2O: NaCl (2:1) mixed with Hoagland solution. Three K2SO4 nanoparticle treatments consisting of, 1/4, 1/8, and 1/10 of the potassium (K) level in full strength Hoagland solution (235 mg·L-1) were applied. Adding K2SO4 nanoparticles at the 1/8 level resulted in the highest shoot dry weight, relative yield, root length and root dry weight in both genotypes. The different rates of K2SO4 nanoparticles affected significantly Na/K ratio and the concentrations of Calcium (Ca), Phosphorus (P), Copper (Cu), Manganese (Mn), and Zinc (Zn) in plant tissue. The application of K2SO4 nanoparticles at the 1/8 rate enhanced the plant’s physiological response to salt stress by reducing electrolyte leakage, increasing catalase and proline content, and increasing antioxidant enzymes, activity. These results suggest that the application of K nanoparticles may have better efficiency than conventional K fertilizers in providing adequate plant nutrition and overcoming the negative effects of salt stress in alfalfa.