Morpho-physiological evaluation of Elymus semicostatus (Nees ex Steud.) Melderis as potential donor for drought tolerance in Wheat (Triticum aestivum L.)

2021 ◽  
Author(s):  
Antul Kumar ◽  
Achla Sharma ◽  
Rajni Sharma ◽  
Anuj Choudhary ◽  
Puja Srivastava ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Drought Tolerance ◽  
Triticum Aestivum L ◽  
Potential Donor ◽  
Physiological Evaluation

Adaptive traits for drought tolerance in red-grained wheat (Triticum aestivum L.) landraces

2021 ◽  
pp. 1-32
Author(s):  
Muhammad Waseem ◽  
Sahar Mumtaz ◽  
Mansoor Hameed ◽  
Sana Fatima ◽  
Muhammad Sajid Aqeel Ahmad ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Drought Tolerance ◽  
Triticum Aestivum L ◽  
Adaptive Traits

scholarly journals Enhancement of drought tolerance in Triticum aestivum L. seedlings using Azospirillum brasilense NO40 and Stenotrophomonas maltophilia B11

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Wedad A. Kasim ◽  
Mohamed E. H. Osman ◽  
Mohamed N. Omar ◽  
Samar Salama
Keyword(s):  
Triticum Aestivum ◽  
Drought Stress ◽  
Drought Tolerance ◽  
Azospirillum Brasilense ◽  
Stenotrophomonas Maltophilia ◽  
Protein Pattern ◽  
Triticum Aestivum L ◽  
Protein Patterns ◽  
Wheat Seedlings ◽  
Enhanced Production

Abstract Background The effectiveness of two PGPB; Azospirillum brasilense NO40 and Stenotrophomonas maltophilia B11 was investigated in enhancing the drought tolerance of wheat (Triticum aestivum L.) seedlings cultivar Gemiza9. The inoculated or uninoculated grains were sown in unsterilized sandy soil and watered normally untill the 8th day. Drought stress was initiated by completely withholding water for 7 days (until wilting). Samples were collected after 15 days from sowing to evaluate some growth criteria, damage and defense indicators and to analyze the roots’ protein pattern. Results The results showed that inoculating wheat seedlings with these strains significantly diminished the inhibitory effects of drought stress on the relative water content of roots, shoots and leaves; area of leaves; contents of pigments (chlorophyll a and b) and ascorbic acid; and on the protein patterns of roots. Moreover, the bacterial inoculation notably reduced the drought-induced damage indicated by lower leakage of electrolytes and less accumulation of Malondialdehyde and hydrogen peroxide, surprisingly with less enhanced production of proline and activities of catalase and peroxidase than their uninoculated counterparts. Under normal conditions, inoculating wheat plants with these PGPB resulted in significantly promoted growth and elevated contents of pigments and altered protein patterns of roots. Conclusion Overall, we can say that both Azospirillum brasilense NO40 and Stenotrophomonas maltophilia B11 were able to deactivate the growth inhibition in wheat seedlings to some extent, while maintaining a certain level of efficient protection against damage under drought stress.

scholarly journals Contribution of Ascorbate and Glutathione in Endobacteria Bacillus subtilis-Mediated Drought Tolerance in Two Triticum aestivum L. Genotypes Contrasting in Drought Sensitivity

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2557
Author(s):  
Dilara Maslennikova ◽  
Oksana Lastochkina
Keyword(s):  
Triticum Aestivum ◽  
Bacillus Subtilis ◽  
Drought Tolerance ◽  
Triticum Aestivum L ◽  
Subtilis Strain ◽  
Wheat Cultivars ◽  
Stress Markers ◽  
Drought Tolerant ◽  
Adaptation To Drought ◽  
Significant Activation

We evaluated the effect of endobacteria Bacillus subtilis (strain 10–4) as a co-inoculant for promoting plant growth and redox metabolism in two contrasting genotypes of Triticum aestivum L. (wheat): Ekada70 (drought tolerant (DT)) and Salavat Yulaev (drought susceptible (DS)) in early stages of adaptation to drought (12% PEG–6000). Results revealed that drought reduced growth and dramatically augmented oxidative stress markers, i.e., hydrogen peroxide (H2O2) and lipid peroxidation (MDA). Furthermore, the depletion of ascorbate (AsA) and glutathione (GSH), accompanied by a significant activation of ascorbate peroxidase (APX) and glutathione reductase (GR), in both stressed wheat cultivars (which was more pronounced in DS genotype) was found. B. subtilis had a protective effect on growth and antioxidant status, wherein the stabilization of AsA and GSH levels was revealed. This was accompanied by a decrease of drought-caused APX and GR activation in DS plants, while in DT plants additional antioxidant accumulation and GR activation were observed. H2O2 and MDA were considerably reduced in both drought-stressed wheat genotypes because of the application of B. subtilis. Thus, the findings suggest the key roles in B. subtilis-mediated drought tolerance in DS cv. Salavat Yulaev and DT cv. Ekada70 played are AsA and GSH, respectively; which, in both cases, resulted in reduced cell oxidative damage and improved growth in seedlings under drought.

Water use of some recent bread and durum wheat cultivars in western Canada

2007 ◽  
Vol 87 (2) ◽  
pp. 289-292 ◽  
Author(s):  
H. Wang ◽  
T. N. McCaig ◽  
R. M. DePauw ◽  
J. M. Clarke ◽  
R. Lemke
Keyword(s):  
Triticum Aestivum ◽  
Drought Tolerance ◽  
Soil Water ◽  
Water Use ◽  
Triticum Turgidum ◽  
Grain Filling ◽  
Triticum Aestivum L ◽  
Western Canada ◽  
Wheat Cultivars ◽  
Use Efficiency

Recently developed cultivars of Canada Western Red Spring (CWRS) wheat (Triticum aestivum L.) and Canada Western Amber Durum (CWAD) (Triticum turgidum L. var durum) produced significantly more grain than older cultivars. This production was attributed to higher harvest indices and better water use efficiency. Durum cultivars and CWRS AC Intrepid and AC Barrie extracted relatively more soil water below 55 cm, which may be advantageous in minimizing leaching and related to drought tolerance during grain-filling. Key words: Hexaploid wheat, durum, water use, soil water

scholarly journals Assessment of Drought Tolerance Indices and their Relation with ISSR Markers in Bread Wheat (Triticum aestivum L.)

2012 ◽  
Vol 4 (3) ◽  
pp. 143-150
Author(s):  
Behnam FIROOZI ◽  
Omid SOFALIAN ◽  
Majid SHOKRPOUR ◽  
Ali RASOULZADEH ◽  
Fatemeh AHMADPOOR
Keyword(s):  
Triticum Aestivum ◽  
Drought Tolerance ◽  
Bread Wheat ◽  
Triticum Aestivum L ◽  
Issr Markers ◽  
Drought Tolerance Indices ◽  
Tolerance Indices

scholarly journals Drought Tolerance Screening in Thirty Common Wheat (Triticum aestivum L.) Genotypes

2020 ◽  
Vol 35 (1) ◽  
Author(s):  
Ajmalud Din ◽  
Munir Ahmad ◽  
Fahad Masoud Watto ◽  
Sheraz Ahmed ◽  
Imtiaz Ali ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Drought Tolerance ◽  
Common Wheat ◽  
Triticum Aestivum L

scholarly journals Effect of PEG and mannitol to induce drought stress on seed quality and stand establishment in wheat (Triticum aestivum L.) genotypes

2021 ◽  
Vol 17 (2) ◽  
pp. 469-475
Author(s):  
S. B. Patil ◽  
Jitendra Kumar S. Hilli
Keyword(s):  
Triticum Aestivum ◽  
Drought Tolerance ◽  
Root Length ◽  
Seed Quality ◽  
Block Design ◽  
Triticum Aestivum L ◽  
Germination Percentage ◽  
Shoot Length ◽  
Seedling Vigour ◽  
Wheat Genotypes

An experiment was conducted to study the screening of wheat (Triticum aestivum L.) genotypes for drought tolerance under laboratory condition during2018 at Department of Seed Science and Technology, College of Agriculture, Vijayapura. The experiment was carried out in a factorial Complete Randomized Block Design with seven treatments replicated three times. Twenty six wheat genotypes were screened for drought tolerance using 0, 15, 30, 60 per cent polyethylene ethylene glycol 6000 (PEG6000) and 1, 2, 5 per cent mannitol solutions. Data were recorded on various seedling parameters like germination percentage, root length, shoot length, seedling dry weight and seedling vigour index. The seedling traits showed a decreasing trend in response to increased concentrations of PEG6000 and mannitol. Wheat genotype DBW-110 (98.70 %) and C-306 (92.50 %) were found to be the best genotype for screened based on germination percentage at 15 per cent PEG6000 and 5 per cent mannitol. Wheat genotypes HI-1620 (6.7 cm) and NIAW-3212 (4.5 cm) produced maximum root length, respectively at higher concentrations of PEG6000 and mannitol. The genotype HI-1620 (6.4 cm, @ 15 %; 5.4 cm, @ 5 % mannitol) showed maximum shoot length. The genotype HD-2733, DBW-14, DBW-88 showed highest reduction of seedling parameters observed at increase in osmotic stress condition.

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