Journal ArticleDOI
Chemical priming with urea and KNO3 enhances maize hybrids (Zea mays L.) seed viability under abiotic stress
TLDR
Generally, KNO3 and urea alleviated effects of both stresses and led to increased germination and seedling growth as well as the root length, and hybrid 304 appeared to be more resistant to stress than other hybrids.Abstract:
Seed priming is a method to improve germination and seedling establishment under stress conditions. The effect of seed priming in chemical solutions such as urea and KNO3, on protein and proline content, germination, and seedling growth responses of four maize (Zea mays L.) hybrids under drought and salt stress conditions was studied in a controlled environment in 2010. Treatments included stress type and intensity at five levels: moderate drought (MD), severe drought (SD), moderate salt (MS), severe salt (SS), and control (C1, without stress), three seed priming types including water (C2, as control), KNO3, and urea (as chemical priming), and four maize hybrids including Maxima, SC704, Zola, and 307. The results showed that the highest germination percentage (Ger %), germination rate (GR), seedling length (SL), radical length (RL), and seedling to radical length ratio (S/R) were achieved in no stress treatments and most proline content in SD treatment. Urea priming led to more Ger%, GR, and SL compared to other primers and treatment under KNO3 priming resulted in higher RL compared to other primers. Chemical priming had no effect on S/R and proline content. Also, in terms of most traits, no difference was found among the four hybrids. Results showed that salt stress could affect GR and RL more than the drought stress. Drought stress affected germination percentage and S/R more than the salt stress. Both stresses decreased all measured parameters, except protein and proline content which were increased remarkably, and more under drought compared to salt stress. Based on proline content, hybrid 304 appeared to be more resistant to stress than other hybrids. Generally, KNO3 and urea alleviated effects of both stresses and led to increased germination and seedling growth as well as the root length. Therefore, priming could be recommended for enhancing maize growth responses under stressful conditions.read more
Citations
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Journal ArticleDOI
Effects of seed priming treatments on the germination and development of two rapeseed (Brassica napus L.) varieties under the co-influence of low temperature and drought.
Zong He Zhu,Abdul Sami,Qing Qing Xu,Ling Ling Wu,Wen Yin Zheng,Zhi Peng Chen,Xue Zhi Jin,Hong Zhang,Yong Li,Yu Yan,Ke Jin Zhou +10 more
TL;DR: In this paper, the authors evaluated the effect of seed priming on the performance of two rapeseed cultivars, namely, ZY15 and HY49, under low temperature and drought conditions.
Book ChapterDOI
Seed Priming: An Emerging Technology to Impart Abiotic Stress Tolerance in Crop Plants
Shambhu Krishan Lal,Shambhu Krishan Lal,Sudhir Kumar,Vijay Sheri,Sahil Mehta,Panditi Varakumar,Babu Ram,Bhabesh Borphukan,Donald James,Dhirendra Fartyal,Malireddy K. Reddy +10 more
TL;DR: Seed priming methods are widely used as an emerging technology to produce tolerant crop varieties against abiotic stresses and include uniform germination, reduction in germination and emergence time, and broad range of tolerance against disease and environmental stresses.
Journal ArticleDOI
Efficacy of KNO3, SiO2 and SA priming for improving emergence, seedling growth and antioxidant enzymes of rice (Oryza sativa), under drought.
TL;DR: In this paper, the effects of seed priming with salicylic acid (SA) and silicon dioxide (SiO2) on the emergence, seed growth, biochemical attributes and antioxidant activities of FARO44 rice under drought conditions were evaluated.
Journal ArticleDOI
Nitrate- and nitric oxide-induced plant growth in pea seedlings is linked to antioxidative metabolism and the ABA/GA balance.
Antonia Vidal,Daniel Cantabella,Agustina Bernal-Vicente,Pedro Díaz-Vivancos,José Antonio Hernández +4 more
TL;DR: The effect of SNP on reduced glutathione (GSH) levels was reverted by cPTIO, suggesting that NO has a direct effect on GSH biosynthesis or turnover.
Journal ArticleDOI
Synergistic Effects of Melatonin and Gamma-Aminobutyric Acid on Protection of Photosynthesis System in Response to Multiple Abiotic Stressors
Aida Shomali,Sasan Aliniaeifard,Fardad Didaran,Mahmoud Lotfi,Mohammad Mohammadian,Mehdi Seif,Wacław Roman Strobel,Edyta Sierka,Hazem M. Kalaji +8 more
TL;DR: In this article, the response of Vicia faba to different stressors (salinity (NaCl), poly ethylene glycol (PEG), and sulfur dioxide (SO2)) was studied after priming with sole application of GABA and melatonin or their co-application (GABA + melatonin).
References
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Journal Article
Protein Measurement with the Folin Phenol Reagent
TL;DR: Procedures are described for measuring protein in solution or after precipitation with acids or other agents, and for the determination of as little as 0.2 gamma of protein.
Journal ArticleDOI
A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding
TL;DR: This assay is very reproducible and rapid with the dye binding process virtually complete in approximately 2 min with good color stability for 1 hr with little or no interference from cations such as sodium or potassium nor from carbohydrates such as sucrose.
Journal ArticleDOI
Rapid determination of free proline for water-stress studies
TL;DR: In this article, a simple colorimetric determination of proline in the 0.1 to 36.0 μmoles/g range of fresh weight leaf material was presented.
Journal ArticleDOI
The Osmotic Potential of Polyethylene Glycol 6000
TL;DR: Osmotic potential (psi(s)) of aqueous solutions of polyethylene glycol 6000 (PEG-6000) was curvilinearly related to concentration and increased linearly with temperature.
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