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
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- 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
