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🔬 Biology  ·  Strategies for Enhancement in Food Production  ·  NEET

Saccharum barberi was crossed with Saccharum officinarum in sugarcane breeding mainly to combine:

Answer: High sugar content and good growth in north India.

  • A Disease resistance and uniform seedlessness
  • B High sugar content and good growth in north India
  • C Dwarf stature and early maturity
  • D Salt tolerance and high yield

Correct answer: B. High sugar content and good growth in north India

Explanation: S. officinarum had thicker stems and higher sugar, while S. barberi grew well in north India; crossing them combined high sugar, thick stems and wider adaptability.

Composite Fish Culture: Niches in One PondCatla (surface feeder)Rohu (middle feeder)Mrigal/Common carp (bottom feeder)

Different fish species occupy different feeding depths in the same pond without competing for food: Catla feeds near the surface, Rohu in the middle zone, and Mrigal or common carp at the bottom - letting a single pond support far more total fish than one species alone.

Concept context

Learn about animal husbandry, plant breeding, tissue culture, biofortification, and single cell protein.

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