IACuba 25

IACuba 25. Cuban rice variety nominated in 1993 , obtained by breeding by selection from the Amistad 82 variety . It achieves an agricultural yield that exceeds 4.0 t / ha in the wet season and 4.8 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: Very Hardy .
  • White Sheet: Susceptible.
  • Pyricularia griseaSacc .: Very Resistant.
  • Acame: Tough

General characteristics

  • Catalog No.: 2039
  • Herbal No. IIA: 25
  • Cross: AMISTAD 82 selection (Cuba)
  • Cycle (days): Dry: 125 Wet: 110
  • % Whole White Grain: 58.3
  • % Crystallinity: 88.0

Most outstanding descriptive characters

Seedling characteristics

  • Coleoptyl predominant color: Light green
  • Mesocotyl length (mm): 2
  • Coleoptyl length (mm): 8

Ripe panicle of var. IACuba 25

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 at the spikelet: 0-100
  • Predominant color of the apex formed by the motto and the palea on the spikelet: Straw
  • Glume predominant pubescence: Glabra or smooth
  • Glume predominant color: Straw

Grains with hoof and polished var. IACuba 25

  • Stigma predominant color: Whitish
  • Predominant position of the flag leaf: Erecta
  • Length of the banner sheet foil (cm): 28.3
  • 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: Slightly pubescent
  • Leaf blade length (cm): 37.9
  • Leaf blade width (cm): 0.9
  • Predominant color of the leaf blade: Green
  • Predominant corrugation of blade: Present
  • Predominant corrugated side of leaf blade: Right side 60%
  • Predominant color of ligule: Cream
  • Predominant form of ligule: cleft
  • Ligule length (mm): 23.5
  • 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: Light green
  • Predominant color of the subnodal ring: Yellowish green
  • Predominant stem base color: Pale green, 60%

Ripening

  • Days to maturity: in the dry season 125 days, while in the wet it takes only 110 days
  • Plant Height (cm): 72
  • Predominant resistance to lodging: Moderately strong
  • Predominant response to photoperiod: Insensitive
  • Edge size: Short
  • Predominant seed type of edge: Short edge (<50%)
  • 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
  • Angle of the apex of a grain taken from the middle third of the panicle: 0-100
  • Seed length (mm): 9.18
  • Seed width (mm): 2.46
  • Seed width-length ratio: 3.73
  • Seed thickness (mm): 1.86
  • Weight of 1000 dry seeds (g): 28
  • Number of non-grooved seeds in a sample of 1000 grains: 870
  • Predominant panicle density: Semicompact 60%
  • Panicle predominant exercise: Coincident
  • Panicle length (cm): 21.3
  • Number of vain (sterile) grains at the apex of the panicle: All fertile grains
  • Panicle predominant fertility: Very fertile
  • Predominant shelling of the panicle: Intermediate (31-45%)
  • Predominant foliar longevity: Late or slow
  • Number of grains in the panicle: 162

Evaluation of diseases and pests

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

 

Leave a Comment