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Effects Of Exogenous Application Of Nano Particles And Compatible Organic Solutes On Sunflower (Helianthus Annuus L.)

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  • Title:
    Effects Of Exogenous Application Of Nano Particles And Compatible Organic Solutes On Sunflower (Helianthus Annuus L.)
  • Author: Janmohammadi Mohsen ; Yousefzadeh Saeed ; Dashti Shahryar ; Sabaghnia Naser
  • Subjects: Compatible Solutes ; Nano Silicon Dioxide ; Oil Content ; Terminal Drought Stress ; Tio2 Nanoparticles
  • Publication Details: Zenodo
  • Description: Mediterranean semi-arid regions in northwestern Iran receive precipitation below potential evapotranspiration and are characterised by excessive heat and terminal drought stress. Exogenous application of some nanoparticles and growth regulators appears to alleviate the adverse effects of abiotic stress and improve plant performance. In the present paper, an attempt is made to evaluate the effects of foliar application of salicylic acid (SA), glycine betaine (GB), ascorbic acid (AA), nano-silica (nSiO2) and nano titanium dioxide (nTiO2) suspensions on growth and yield components of sunflower (cv. Azargol) in the semi-arid highland region of Maragheh, Iran. Plants were grown under rain-fed conditions with supplemental irrigation applied three times during the reproductive growth stages of growth. The results revealed that foliar application of SA considerably improved head diameter, chlorophyll content of plant leaves, and days to flowering, while it delayed physiological maturity for a fairly long time. Evaluation of the achene yield component indicated that application of GB significantly increased the weight of achenes when compared with other treatments. The percentage of empty achenes was considerably affected by treatments, the lowest percentage of hollow achenes being recorded for plants sprayed with GB, followed by ones sprayed with AA and nTiO2. The percentage of oil in...
  • Identifier: DOI: 10.5281/zenodo.453554
  • Creation Date: 2017

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