Pearl of Cuba

Pearl of Cuba: Cuban variety of rice nominated in 1991 , precedent of the crossing of unknown parents, with an agricultural yield that exceeds 5.7 t / ha in the wet season and 7.3 t / ha in the dry season.

Summary

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

General characters

  • Potential agricultural yield: dry period: 7.3 t / ha. Wet season: 5.7 t / ha.
  • Life cycle (days): dry period: 125 and in the wet season: 110
  • % Whole White Grain: 56.7

Behavior towards the main pests

  • Tagosodes orizicolusMuir: Hardy
  • White Sheet: Very Strong
  • Pyricularia griseaSacc .: Intermediate

Most outstanding descriptive characters

Plant characteristics

  • Plant Height (cm): 85.5
  • Predominant tillering capacity: Medium
  • Panicle length (cm): 23.5
  • Predominant panicle density: Compact

Ripe panicle of var. Pearl of Cuba

  • Vegetative vigor: 5
  • Ecotype: Intermediate
  • Acame resistance: Susceptible
  • Cold damage: Intermediate

Descriptive characters

In seedling state

Coleopthyl predominant color: Light green (48) Mesocotyl length (mm): 15 Coleoptyl length (mm): 5.8

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 at the spikelet: 0-100
  • Predominant color of the apex formed by the lemma and the palea on the spikelet: Green
  • Predominant pubescence of glumes: Pubescent towards the apex of the lemma and the palea
  • Glume predominant color: Light green
  • Stigma predominant color: Off-white (76)
  • Blade Predominant Position: Erect Flag
  • Length of the flag leaf blade (cm): 31
  • Width of the banner sheet foil (cm): 0.9
  • Predominant position of first leaf apex below flag leaf: Erect
  • Leaf blade predominant hairiness: Slightly pubescent
  • Leaf blade length (cm): 31
  • Leaf blade width (cm): 0.9
  • Predominant color of the leaf blade: Light green
  • Predominant corrugation of blade: Present
  • Predominant corrugated side of the leaf blade Left side: (60%)
  • Predominant color of ligule: Cream
  • Predominant form of ligule: cleft
  • Ligule length (mm): 16.4
  • Predominant size of atria: –
  • Resistance of atria to detachment: Fallen

Rice grains of the var. Pearl of Cuba with shell and polished

  • Predominant atria color: Cream
  • Predominant color of leaf sheath: Green
  • Knot predominant color Yellow: (84)
  • Predominant internode color: Light green
  • Predominant color of the subnodal ring: Yellowish green
  • Predominant color of stem base: Yellowish green

Ripening

  • Days to maturity Dry: 125 Wet: 110
  • Plant Height (cm): 85.5
  • Predominant resistance to lodging: Strong
  • Predominant response to photoperiod: Insensitive
  • Edge size: Medium
  • Predominant seed type of edge: Short edge and present in less than 50% of the grains
  • Angle of the apex of the apical grain of the panicle: 0-10o
  • Predominant color of apex of panicle apical grain: Straw
  • Predominant color of the fertile glumes (lemma and palea) of the apical panicle grain: Straw
  • Angle of the apex of a grain taken from the middle third of the panicle: 0-100
  • Seed length (mm): 9.78
  • Seed width (mm): 2.58
  • Seed width to length ratio: 3.79
  • Seed thickness (mm): 1.8
  • Weight of 1000 dry seeds (g): 32.5
  • Number of non-grooved seeds in a sample of 1000 grains: 896
  • Predominant panicle density: Compact
  • Panicle predominant exercise: Emerged
  • Panicle length (cm): 23.5
  • Number of vain (sterile) grains at the apex of the panicle: All fertile grains
  • Panicle Predominant Fertility: Fertile
  • Predominant shelling of the panicle: Difficult
  • Predominant foliar longevity: Intermediate
  • Number of grains in the panicle: 137

 

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