Study of Drought Susceptibility Index for Grain Yield and Associated Traits in Barley (Hordeum vulgare L.) Genotypes under Limited Moisture condition of Rajasthan

Author: Madhu Yadav*, Ved Prakash, S. S. Rajput, Madhu Choudhary, Sonu Get, Sarfraz Ahmad, Khushwant B. Choudhary and Shravan Kumar Sharma

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Abstract

Drought is one of the most common abiotic stresses, posing a major challenge to sustainable food production, as it can reduce the potential yield by up to 70% in crop plants. In arid and semi-arid regions, either reduction in water supply in soil or high transpiration can cause drought experience in crops. It has been reported that drought stress could reduce grain yield by 49–87% in barley. Drought occurs in all climatic regions and 16.2-41.2% of arable land worldwide is considered as drought-prone area. Drought continues to be an important challenge to agricultural researchers and plant breeders. It is assumed that by the year 2025, around 1.8 billion people will face absolute water shortage and 65% of the world’s population will live under water-stressed environments. It is one of the consequences of climate change that has a negative impact on crop growth and yield. It is extremely important to improve essential crops to meet the challenges of drought stress which limits crop p

Keywords

Barley, Drought, Tolerance, Stress, Rainfed.

Conclusion

Based on the drought susceptibility index, the parents DWRUB 64, BH 946, RD 103 and RD 2592 were most desirable parents in E2 environment as they attained high DSI value for yield and its contributing traits. As a consequence, it is recommended that these parents may perform as potential donors for drought tolerance. These parents should be further exploited for improvement of grain yield under rainfed conditions. DSI should be taken as an important criterion for breeding barley genotypes suitable for rainfed or drought stress environment. There is a need for the development of abiotic and biotic stress tolerant new varieties of barley for the enhancement of crop productivity. The most alternative is to increase the yield per unit area through better crop management practices and increasing the cultivation of high yielding varieties with adequate resistance to biotic and abiotic stresses. New wheat and barley genotypes having a high degree of drought tolerance are produced through bre

References

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How to cite this article

Madhu Yadav, Ved Prakash, S.S. Rajput, Madhu Choudhary, Sonu Get, Sarfraz Ahmad, Khushwant B. Choudhary and Shravan Kumar Sharma (2022). Study of Drought Susceptibility Index for Grain Yield and Associated Traits in Barley (Hordeum vulgare L.) Genotypes u