Ideotypes of Different Crops

Ideotypes of different crops

What is ideotype?

Ideotype is a biological model which is expected to perform or behave in a predictable way within a known environment. In this post we will know about the Ideotypes of Different Crops.

Types of ideotype:

  • Isolation ideotypes.
  • Competition ideotypes.

Also read: Agronomy one liner

(1). Wheat
(2). Redgram
(3). Maize
(4). Rainfed upland rice
(5). Gram
(6). Rainfed wheat

Ideotypes of some field crops

(1). Ideotypes of wheat according to Donald (1968)

  • Avoiding crop lodging : Plant should be short and strong.
  • A large erect ear.
  • More number of fertile florets per unit area.
  • Presence of awns to increase the photosynthetic area.
  • Presence of a single culm to avoid wasteful vegetative growth.
  • Proper translocation of assimilates.

(2). Ideotypes of Redgram

  • The growth of plant canopy should be fast at beginning.
  • Start of productive phase after vegetative phase.
  • Long floral axis.
  • All flower should bloom at the same time.
  • Root nodules should be active for a long time.
  • Plant should be resistant to insect-pests.

Also read: Agronomy multiple choice questions

(3). Ideotypes of Maize

  • Plant should have erect upper leaves.
  • And, lower leaves should horizontal for proper air movement and receiving of sunshine.
  • Plant height is 1.5 m.
  • 2 – 3 cob on the nodes near the tassel.

(4). Ideotypes of Rainfed upland Rice

  • Strong growth (85 – 100 days).
  • Plant should be dwarf.
  • Deep root system.
  • Plant should have erect leaves.
  • Early tillering.
  • Fertile tillering.
  • Synchronized flowering.
  • Sufficient panicles.
  • More and more grains per panicle.
  • Moderate seed dormancy.
  • Resistant to major and minor insect-pests.

(5). Ideotypes of Gram

  • Productive phase must starts after vegetative phase.
  • Plant should have erect branching.
  • There should be 2-3 longer pods in the leaf axis.
  • 2 – 3 seeds in each pod.

Also read: Types of cropping systems

(6). Rainfed Wheat

  • Large number of spikelets.
  • Strong root system.
  • Deep root system.
  • Large peduncle.
  • Flat leaves parallel to soil.
  • Grain development period should coinciding with mean maximum temperature of 25°C.


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