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
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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: 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
