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
