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Barley UPSC NOTE

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  Why in News This research leverages data from one of the world's oldest biological experiments , a barley breeding experiment initiate...

 Why in News

  • This research leverages data from one of the world's oldest biological experiments, a barley breeding experiment initiated in 1929.

  • The study investigates how barley has adapted over time to both:

    • Agricultural pressures: Selective breeding practices by humans.

    • Natural environment: The influence of the surrounding environment on barley survival and reproduction.

Findings:

  • Over several generations, natural selection has significantly reduced the genetic diversity of the barley population.

  • A single genetic lineage (clonal) has become dominant, constituting most of the current population.

Significance:

  • This research highlights the power of long-term studies in understanding:

    • Adaptive evolution: How organisms change over time to better suit their environment.

  • The impact of human intervention: How our agricultural practices can influence the genetic makeup of crops.

  • Barley (Hordeum vulgare), a member of the grass family, is a major cereal grain grown in temperate climates globally. 

  • It was one of the first cultivated grains

  • Barley prefers relatively low temperatures and well-drained soil to grow. 

  • It is relatively tolerant of drought and soil salinity but is less winter-hardy than wheat or rye

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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Barley UPSC NOTE
Barley UPSC NOTE
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https://lh7-us.googleusercontent.com/slidesz/AGV_vUfBdeL6nNQt0bG17miHG4wL3zvKQC68aDgRdJzw7L_Iy49gbmIuOi75ID4ihUo9A-0g2XWz_zlnzwTN5g_4lpb7WMq1eQZDn5JiAGjjjUk5rM3_7FYKnZ-t79MCR6FjmAn_-y87-7iuTFdwahDraPpB4qDrQs2QYG8Dos9-yRCRxA=s72-c?key=dj4Q8RImQQk1GxhBJSE2qg
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
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