IACuba 28

IACuba 28. 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 6.3 t / ha in the wet season and 8.5 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.

Table of Contents

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 orizicolus
White Sheet: Susceptible.
Pyricularia griseaSacc .: Very Resistant.
Behavior towards acame: ResistantAcame: Resistant

General characteristics

Catalog No. 2108
Herbal No. IIA: 28
Crop cycle length (days): Dry season, 136 days; while in the wettest season it can be 112.
% Whole White Grain: 52
% Crystallinity: 89

Ripe panicle of var. IACuba 28

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: Erect
Predominant tillering capacity: Very prolific
Number of dead leaves: 1
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: Off-white (76)
Predominant position of the flag leaf: Erecta
Banner Sheet Foil Length (cm): 32
Width of the banner sheet foil (cm): 1.3
Predominant position of the apex of the first leaf below the flag leaf: Erecta

Grains with hoof and polished var. IACuba 28

Leaf blade predominant hairiness: Pubescent from the middle of the blade to the apex (3)
Leaf blade length (cm): 42.1
Leaf blade width (cm): 1.1
Predominant color of the leaf blade: Green (39)
Predominant corrugation of blade: Present (100%)
Predominant corrugated side of leaf blade: Left side (60)
Main color of ligule: Cream (75)
Predominant form of ligule: cleft
Ligule length (mm): 23.7
Predominant atrium size: Very small
Resistance of atria to detachment: Fallen
Predominant atria color: Cream (75)
Predominant color of leaf sheath: Green (39)
Knot predominant color: Light green (44)
Predominant internode color: Light green (48)
Predominant color of the subnodal ring: Light green (48)
Predominant color of stem base: Yellowish green (47)

Ripening

Days to maturity: Dry season: 136 days and in wet season: 112 days
Plant Height (cm): 114
Predominant resistance to lodging: Strong
Predominant response to photoperiod: Insensitive
Edge size: –
Predominant seed type of edge: Absent edge
Angle of apex of apical panicle grain: 0-100
Predominant color of apex of panicle apical grain: Light brown (71)
Predominant color of the fertile glumes (lemma and palea) of the apical panicle grain: Golden furrow on straw background (63)
Angle of the apex of a grain taken from the middle third of the panicle: 0-100
Seed length (mm): 13.0
Seed width (mm): 2.39
Seed width to length ratio: 5.43
Seed thickness (mm): 2
Weight of 1000 dry seeds (g): 32.9
Number of non-grooved seeds in a sample of 1000 grains: 1000
Predominant panicle density: Compact
Panicle predominant exercise: Moderately emerged
Panicle length (cm): 29.5
Number of vain (sterile) grains at the apex of the panicle: All fertile grains (50%), one sterile grain (50%)
Panicle predominant fertility: Very fertile
Predominant shelling of the panicle: Difficult
Predominant foliar longevity: Late or slow
Number of grains in the panicle: 170

Evaluation of diseases and pests

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