IACuba 22

IACuba 22. 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 dries it. 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.: 1971
  • Potential agricultural yield: dry period: 9.0 t / ha. Wet season: 6.1 t / ha.
  • Life cycle (days): dry period: 153 and in the wet season: 121
  • % Whole White Grain : 55.6
  • % Crystallinity: 88.0

Behavior towards the main pests

  • Tagosodes orizicolusMuir: Very Hardy .
  • White Sheet: Very resistant.
  • Pyricularia griseaSacc .: Very Resistant.
  • Acame: Very resistant

Most outstanding descriptive characters

Seedling characteristics

  • Coleoptyl predominant color: Light green
  • Mesocotyl length (mm): 4
  • Coleoptyl length (mm): 6.5

Ripe panicle of var. IACuba 22

At the time of flowering

  • Predominant growth habit: Semi-erect
  • Predominant tillering capacity: Very proliferates
  • Number of dead leaves: 2
  • Angle of the apex formed by the lemma and the palea on the spikelet: 0-100
  • Predominant color of the apex formed by the motto and the palea on the spikelet: Straw
  • Glume predominant pubescence: Partially or completely covered with short hair
  • Glume predominant color: Straw
  • Stigma predominant color: Yellow

Varnished and shelled grains of var. IACuba 22

  • Predominant position of the flag leaf: Erecta
  • Length of the flag leaf blade (cm): 27.4
  • 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): 31.5
  • Leaf blade width (cm): 1.1
  • Predominant color of the leaf blade: Green (38)
  • Predominant corrugation of blade: Present
  • Predominant corrugated side of the leaf blade: Left side (80%)
  • Predominant color of ligule: Cream
  • Predominant form of ligule: cleft
  • Ligule length (mm): 24.4
  • Predominant atrium size: Large
  • Resistance of atria to detachment: Fallen
  • Predominant atria color: Cream (75)
  • Predominant color of leaf sheath: Green (39)
  • Knot predominant color: Yellowish green (49)
  • Predominant internode color: Light green (48)
  • Predominant color of the subnodal ring: Yellowish green (47)
  • Predominant stem base color: Pale green (87)

Ripening

  • Days to maturity: in dry season: 153 and in wet season: 121
  • Plant Height (cm): 80.9
  • 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 panicle apical grain: Straw (96)
  • Predominant color of the fertile glumes (lemma and palea) of the apical panicle grain: Straw (96)
  • Apex angle of a grain taken from the middle third of the panicle: 0-100
  • Seed length (mm): 10.06
  • Seed width (mm): 2.7
  • Seed width-length ratio: 3.72
  • Seed thickness (mm): 1.95
  • Weight of 1000 dry seeds (g): 32.9
  • Number of non-grooved seeds in a sample of 1000 grains: 1000
  • Predominant panicle density: Semicompact
  • Panicle predominant exercise: Coincident
  • Panicle length (cm): 23.3
  • Number of vain (sterile) grains at the apex of the panicle: All fertile grains (60%) one sterile grain (30%) two sterile grains (10%)
  • Panicle predominant fertility: Very fertile
  • Predominant shelling of the Intermediate panicle
  • Predominant foliar longevity: Late or slow
  • Number of grains in the panicle: 103

 

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