IACuba 23

IACuba 23. Cuban rice variety nominated in 1993 , from the induced mutation of the J-104 variety in Cuba , reaches an agricultural yield that exceeds 6.0 t / ha in the wet season and 9.0 t / ha in la seca.Obtained by researchers from the Genetic Improvement department of the Grain Research Institute , entity responsible for producing its Original and Basic seed.

 

Summary

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  • 1 General characteristics
  • 2 Behavior towards the main pests
  • 3 Most outstanding descriptive characters
    • 1 Seedling characteristics
    • 2 At the time of flowering
    • 3 In a ripening state
    • 4 Evaluation of diseases and pests
  • 4 Internal links
  • 5 External links
  • 6 Source

General characteristics

  • Catalog No.: 2024
  • Herbal No. IIA: 23
  • Potential agricultural yield: dry period: 7.4 t / ha. Wet season: 5.2 t / ha.
  • Life cycle (days): dry period: 152 and in the wet season: 134
  • Crossing: J-104 mutant (Cuba)
  • % Whole White Grain: 54.0
  • % Crystallinity: 88.7

Behavior towards the main pests

  • Tagosodes orizicolusMuir: Very Hardy .
  • White Sheet: Susceptible.
  • Pyricularia griseaSacc .: Susceptible.
  • Acame: Tough

Most outstanding descriptive characters

Seedling characteristics

  • Coleoptyl predominant color: Light green
  • Mesocotyl length (mm): 3
  • Coleoptyl length (mm): 4.2

Ripe panicle of var. IACuba 23

At the time of flowering

  • Predominant growth habit: Erect
  • Predominant tillering capacity: Medium
  • Number of dead leaves: 1.5
  • Angle of the apex formed by the lemma and the palea on the spikelet: 0-100
  • Predominant color of the apex formed by the lemma and the palea on the spikelet: Brown (71)
  • Glume predominant pubescence: Partially or completely covered with short hair
  • Glume predominant color: Straw
  • Stigma predominant color: Whitish
  • Predominant position of the flag leaf: Erecta
  • Banner Sheet Foil Length (cm): 50

Varnished and shelled grains of var. IACuba 22

  • Width of the banner sheet foil (cm): 1.3
  • Predominant position of the apex of the first leaf below the flag leaf: Horizontal
  • Leaf-blade predominant hairiness: Pubescent from mid-blade to apex
  • Leaf blade length (cm): 48.6
  • Leaf blade width (cm): 1.2
  • Predominant color of the leaf blade: Dark green (42)
  • Predominant corrugation of blade: Present
  • Predominant corrugated side of the leaf blade: Left side (50%), Right side (50%)
  • Main color of ligule: Cream (75)
  • Predominant form of ligule: cleft
  • Ligule length (mm): 22
  • Predominant atrium size: Very small
  • Resistance of atria to detachment: Fallen
  • Predominant atria color: Cream
  • Predominant color of leaf sheath: Green
  • Knot predominant color: Yellowish green
  • Predominant internode color: Yellowish green
  • Predominant color of the subnodal ring: Yellowish green
  • Predominant color of stem base: Light green

Ripening

  • Days to maturity: in dry season: 152, while in wet season: 134
  • Plant height (cm): 115
  • Predominant resistance to lodging: Strong
  • Predominant response to photoperiod: Insensitive
  • Predominant seed type of edge: Absent edge
  • Angle of apex of apical panicle grain: 0-100
  • Predominant color of apex of apical panicle grain: Brown (71)
  • Predominant color of the fertile glumes (lemma and palea) of the apical panicle grain: Straw (96)
  • Angle of the apex of a grain taken from the middle third of the panicle: 0-100
  • Seed length (mm): 10.00
  • Seed width (mm): 3.00
  • Seed width-length ratio: 3.33
  • Seed thickness (mm): 1.9
  • Weight of 1000 dry seeds (g): 29
  • Number of non-grooved seeds in a sample of 1000 grains: 1000
  • Predominant panicle density: Semicompact
  • Panicle predominant exercise: Moderately emerged
  • Panicle length (cm): 27.3
  • Number of vain (sterile) grains at the apex of the panicle: All fertile
  • Panicle predominant fertility: Very fertile
  • Predominant shelling of the panicle: Difficult
  • Predominant foliar longevity: Late or slow
  • Number of grains in the panicle: 115

 

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