Molecular Approaches and Breeding Strategies for Drought Tolerance in Barley

2007 ◽  
pp. 51-79 ◽  
Author(s):  
Michael Baum ◽  
Maria Von Korff ◽  
Peiguo Guo ◽  
Berhane Lakew ◽  
Aladdin Hamwieh ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Breeding Strategies ◽  
Molecular Approaches

Biochemical and Molecular Approaches for Drought Tolerance in Plants

2013 ◽  
pp. 1-29 ◽  
Author(s):  
Parvaiz Ahmad ◽  
Asiya Hameed ◽  
Elsayed Fathi Abd-Allah ◽  
Subzar Ahmad Sheikh ◽  
Mohd Rafiq Wani ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Molecular Approaches

Evaluation of breeding strategies for drought tolerance in potato by means of crop growth simulation

1990 ◽  
Vol 123 (2) ◽  
pp. 193-203 ◽  
Author(s):  
C. J. T. Spitters ◽  
A. H. C. M. Schapendonk
Keyword(s):  
Drought Tolerance ◽  
Crop Growth ◽  
Breeding Strategies ◽  
Growth Simulation ◽  
Crop Growth Simulation

Breeding Strategies to Enhance Drought Tolerance in Crops

2016 ◽  
pp. 397-445 ◽  
Author(s):  
Saeed Rauf ◽  
Jameel M. Al-Khayri ◽  
Maria Zaharieva ◽  
Philippe Monneveux ◽  
Farghama Khalil
Keyword(s):  
Drought Tolerance ◽  
Breeding Strategies

scholarly journals Drought Affected Wheat Production in Bangladesh and Breeding Strategies for Drought Tolerance

2021 ◽  
Author(s):  
Afsana Hannan ◽  
Md. Najmol Hoque ◽  
Lutful Hassan ◽  
Arif Hasan Khan Robin
Keyword(s):  
Drought Stress ◽  
Drought Tolerance ◽  
Drought Event ◽  
Breeding Strategies ◽  
Wheat Varieties ◽  
Wheat Production ◽  
Drought Tolerant ◽  
Effects Of Drought

Wheat is one of the major cereal crops in Bangladesh. Over the last two decades, wheat consumption has passionately amplified in Bangladesh but its production has declined due to various stress environments. Recurrent drought event due to climate change that threatens the country’s food safety has become a serious concern. To safeguard the food security, adopting suitable breeding strategies can add momentum. Developing drought tolerant wheat varieties are the definitive means of protecting the crop against hostile effects of drought. Plant breeders are exploring various breeding strategies to breed for the varieties that can cope with water deficient conditions well. Besides, breeders are consistently looking for new prospects and strategies that can boost genetic gain in yield. To endorse drought tolerance in wheat, understanding the physiological and genetic adaptation mechanisms of wheat cultivars during drought stress would provide the estimated benchmarks to adjust for suitable breeding programs. The efforts of developing drought tolerant wheat genotypes could be supported by different breeding strategies including in vitro haploid and double haploid protocols, polyploidization, development of various types of hybrids and induced mutants by utilizing both classical and molecular breeding techniques. The proposed book chapter shall discuss the pattern of drought-stress in the wheat growing regions, effects of drought stress on wheat production and suitable breeding strategies for developing drought tolerant genotypes in Bangladesh.

scholarly journals Sulfate enhances drought tolerance in foxtail millet seedlings by promoting ABA biosynthesis and inducing stomatal closure

2021 ◽  
Author(s):  
Yansha Han ◽  
Dianqing Gong ◽  
Huilan Yi
Keyword(s):  
Drought Stress ◽  
Drought Tolerance ◽  
Stomatal Closure ◽  
Foxtail Millet ◽  
Natural Soil ◽  
Plant Responses ◽  
Crop Tolerance ◽  
Molecular Approaches ◽  
Sulfate Application ◽  
Aba Biosynthesis

Abstract Background and aims Sulfate, the main source of sulfur in natural soil, is critical for plant growth and development, as well as plant responses to environmental stress, including drought. However, our understanding of the detailed mechanisms of sulfate-modulated drought tolerance in crop plants is far from complete. In the present study, by using foxtail millet (Setaria italica L.), an emerging model crop, we investigated the possible mechanisms involved in sulfate-induced crop tolerance to drought stress. Methods A combination of biochemical and molecular approaches, as well as stomatal apertures analyses were applied to determine the effect of sulfate application on sulfur assimilation, ABA biosynthesis, and stomatal movement. Results Upon drought exposure, sulfate (4 mM) pretreatment significantly alleviated the decrease in relative water content in foxtail millet leaves. Exogenous sulfate increased endogenous sulfate content and markedly enhanced the enzyme activity of sulfite reductase (SiR) and O-acetylserine(thiol)lyase (OASTL), as well as levels of their transcripts, leading to an increase in cysteine (Cys) production in drought-stressed leaves. Furthermore, in comparison with drought stress alone, sulfate application significantly upregulated the transcriptional expression of SiABA3 and SiAAO3, which contributed to the increased ABA levels in the leaves of drought-stressed foxtail millet seedlings. Moreover, the addition of sulfate decreased stomatal aperture, thus resulting in reduced leaf water loss in foxtail millet exposed to drought. Conclusion Our data suggest that sulfate application was able to promote drought tolerance of foxtail millet plants, at least partially by increasing ABA biosynthesis and triggering stomatal closure.

Maize: Physiological and Molecular Approaches for Improving Drought Tolerance

2012 ◽  
pp. 751-778 ◽  
Author(s):  
Ishwar Singh ◽  
Thirunavukkarasu Nepolean ◽  
Rajyalakshmi Ambika Rajendran ◽  
Mariko Shono
Keyword(s):  
Drought Tolerance ◽  
Molecular Approaches
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