Classification System for Rice Cultivation
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Classification System for Rice Cultivation

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Questions and Answers

What is the main purpose of irrigation in rice cultivation?

  • To reduce the water requirement of the plant
  • To eliminate the need for water entirely
  • To replace the need for rains
  • To supplement the natural rainfall (correct)

    • Which type of rice is characterized by being totally dependent on irrigation?

  • Chaite dhan (irrigated dry season rice) (correct)
  • Traditional tall varieties in shallow rainfed rice
  • Modern semi-dwarf varieties in shallow rainfed rice
  • Wet season rice

    • What distinguishes shallow rainfed rice from other types of rice cultivation?

  • Rice is transplanted with a high water depth maintained throughout
  • It involves minimal irrigation and relies on rainfall (correct)
  • It requires deep flooding during the growing season
  • Only traditional tall varieties can be grown in this method

    • Which part of the plant is responsible for nutrient and water uptake from the soil?

    <p>Crown roots</p> Signup and view all the answers

    In what type of situation do modern semi-dwarf varieties of rice usually grow?

    <p>Irrigated dry season rice</p> Signup and view all the answers

    What is the significance of coleoptiles in rice plants?

    <p>They emerge first in submerged lowland conditions</p> Signup and view all the answers

    What part of the rice plant emerges first in well-drained soil conditions?

    <p>Coleorrhiza</p> Signup and view all the answers

    What does the primary embryonic root do once it emerges through the coleorrhiza?

    <p>It usually dies within a month</p> Signup and view all the answers

    What happens in the shoot system?

    <p>It includes leaves, stem, and inflorescence visible above ground</p> Signup and view all the answers

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