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Open AccessArticle

Low Doses of Cuscuta reflexa Extract Act as Natural Biostimulants to Improve the Germination Vigor, Growth, and Grain Yield of Wheat Grown under Water Stress: Photosynthetic Pigments, Antioxidative Defense Mechanisms, and Nutrient Acquisition

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Department of Botany, Government College University Faisalabad, Faisalabad 38000, Pakistan
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Department of Physics, University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
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Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
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Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, Faisalabad 38000, Pakistan
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Department of Biological Sciences and Technology, China Medical University, Taichung 40402, Taiwan
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Department of Zoology, Government College University Faisalabad, Faisalabad 38000, Pakistan
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Botany and Microbiology Department, College of Science, King Saud University, Riyadh l1451, Saudi Arabia
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Department of Zoology, College of Science, King Saud University, Riyadh l1451, Saudi Arabia
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Department of Botany, S.P. College, Maulana Azad Road, Srinagar, Jammu and Kashmir, Pune 190001, India
*
Authors to whom correspondence should be addressed.
Biomolecules 2020, 10(9), 1212; https://doi.org/10.3390/biom10091212
Received: 15 June 2020 / Revised: 14 August 2020 / Accepted: 17 August 2020 / Published: 20 August 2020
The present study was conducted to investigate the effects of Cuscuta reflexa extract (CRE) on the activities of germination enzymes, seed germination vigor, biomass production, physio-biochemical attributes, and seed yield of water-stressed wheat plants. Different levels of CRE (0, 10, 20, 30, 40, and 50%), including water soaking, were used as seed priming. Water stress negatively affected the seed germination, germination enzyme activities, growth, yield, and different physio-biochemical attributes of wheat plants. Low doses of CRE (10, 20, and 30%) ameliorated the adverse effects of water stress on seed germination attributes, and activities of germination enzymes, but negative impacts were recorded at higher doses (40 and 50%) of CRE. Water-stressed wheat plants grown from seeds pre-treated with low doses of CRE also showed better growth and yield as compared with non-treated ones, and that was associated with an improvement in water relations, photosynthetic pigments, nutrient acquisition, reduced lipid peroxidation, and better antioxidative defense mechanisms. The maximum increase in seed yield was 14.77 and 12.32%, found in plants grown from seeds treated with 20% and 10% CRE, respectively. In conclusion, it is suggested that using low doses of CRE as seed priming can contribute to better wheat yield under water stress, especially in semi-arid and arid areas. View Full-Text
Keywords: antioxidant enzymes; biostimulant; lipid peroxidation; grain yield; seed germination antioxidant enzymes; biostimulant; lipid peroxidation; grain yield; seed germination
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Ali, Q.; Perveen, R.; El-Esawi, M.A.; Ali, S.; Hussain, S.M.; Amber, M.; Iqbal, N.; Rizwan, M.; Alyemeni, M.N.; El-Serehy, H.A.; Al-Misned, F.A.; Ahmad, P. Low Doses of Cuscuta reflexa Extract Act as Natural Biostimulants to Improve the Germination Vigor, Growth, and Grain Yield of Wheat Grown under Water Stress: Photosynthetic Pigments, Antioxidative Defense Mechanisms, and Nutrient Acquisition. Biomolecules 2020, 10, 1212.

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