IACuba 27

IACuba 27. Cuban rice variety nominated in 1999 , obtained by breeding by mutation from the J-104 rice variety in Cuba . It achieves an agricultural yield that exceeds 5.1 t / ha in the wet season and 7.6 t / ha in the dry season. Obtained by researchers from the Genetic Improvement department of the Grain Research Institute , entity responsible for producing its Original and Basic seed.

Summary

[ hide ]

  • 1 Behavior of the variety
  • 2 General characteristics
  • 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

Behavior of the variety

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

General characteristics

  • Cultivation cycle duration (days): Dry season: 130, while in the wettest season it can be 108.
  • % Whole White Grain: 54.7
  • % Crystallinity: 90

Ripe panicle of var. IACuba 27

Most outstanding descriptive characters

Seedling characteristics

  • Coleoptyl predominant color: Light green (48)
  • Mesocotyl length (mm): 0
  • Coleoptyl length (mm): 7

At the time of flowering

  • Predominant growth habit: Semi-erect
  • Predominant tillering capacity: Very prolific
  • Number of dead leaves: 0.4
  • 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: Straw (96)
  • Glume predominant pubescence: Partially or completely covered with short hair
  • Glume predominant color: Straw (96)
  • Stigma predominant color: Yellow (84)
  • Predominant position of the flag leaf: Erecta
  • Length of the flag leaf blade (cm): 29.7
  • Width of the banner sheet foil (cm): 1.5
  • Predominant position of the apex of the first leaf below the flag leaf: Horizontal

Grains with hoof and polished var. IACuba 27

  • Leaf blade predominant hairiness: Pubescent half

from the lamina to the apex

  • Leaf blade length (cm): 37.8
  • Leaf blade width (cm): 1.2
  • Predominant color of the leaf blade: Dark green (41)
  • Predominant corrugation of blade: Present
  • Predominant corrugated side of the leaf blade: L. left (50%), L. right (50%)
  • Main color of ligule: Cream (75)
  • Predominant form of ligule: cleft
  • Ligule length (mm): 25.2
  • Resistance of atria to detachment: Fallen
  • Predominant color of leaf sheath: Dark green (42)
  • Knot predominant color: Light green (44)
  • Predominant internode color: Yellowish green (49)
  • Predominant color of the subnodal ring: Yellowish green (47)
  • Predominant stem base color: Light Green (44)

Ripening

  • Days to maturity: In dry season they are usually around 130 days; while the rainy season can be 108 days
  • Plant Height (cm): 80.9
  • Predominant resistance to lodging: Strong
  • Predominant response to photoperiod: Insensitive
  • Edge size: Medium
  • Predominant seed type: Long edge <50% grains
  • 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)
  • Angle of the apex of a grain taken from the middle third of the panicle: 0-100
  • Seed length (mm): 9.75
  • Seed width (mm): 2.53
  • Seed width-length ratio: 3.85
  • Seed thickness (mm): 2.05
  • Weight of 1000 dry seeds (g): 28.1
  • Number of non-grooved seeds in a sample of 1000 grains: 920
  • Predominant panicle density: Compact (100%)
  • Panicle predominant exercise: Moderately emerged
  • Panicle length (cm): 24.7
  • Number of vain (sterile) grains at the apex of the panicle: All fertile grains (40%) one sterile grain (60%)
  • Panicle Predominant Fertility: Fertile
  • Predominant shelling of the panicle: Moderately difficult
  • Predominant foliar longevity: Late or slow
  • Number of grains in the panicle: 109

Evaluation of diseases and pests

  • Reaction to piliculariosis caused by ( Pyricularia grisea): Resistant
  • Reaction to the insect known as sogataor ( Tagosodes orizicolus ): Resistant

 

Leave a Comment