Division 4.2 Description:
United Kingdom
Breed with a medium-early growing cycle, medium height, small, muticate, pearled grain. Genealogy: Nano x Vialone;
Varietal group: Japonica;
Year first cultivated: 1937;
Growing cycle: 155 days;
Stem length: 95,2 cm;
Node colour: violet;
Internode colour: striped violet;
Foliar limb: striped violet colour, pendant habit;
Sheath colour: violet;
Auricula colour: violet;
Joint colour: violet;
Ligule: length: 17,0 mm, bifid type, violet colour; leaf habit: descending;
Panicle: length: 17,8 cm, pendant habit open type, well exserted, muticate;
Stigma colour: pigmented;
Glume colour: violet-brown;
Glumella colour: violet-brown carina, violet-brown calotte, violet-brown apex;
Spikelet: no beard, average pilosity, length: 8,1 mm, width 4,1 mm, weight of 1 000 = 37,9 g;
Caryopsis: white pericarp, length: 5,6-5,8 mm, width: 3,4-3,6 mm, thickness: 2,0-2,2 mm, shape (length/width ratio) 1.5-1.7, weight of 1 000 grains = 31,1 g;
Tolerance to cold: plantule: high, flowering time: medium; tolerance to high water (40-50): high;
Speed of plantule development: high; level of fertiliser required: medium; yield at processing: 55 %.
In addition, in order to further differentiate Riso Vialone Nano Veronese:
a maximum allowable limit of 2 % for varietal impurities; the following physico-chemical parameters must also be met:
no less than 21 % dry matter;
between 15 and 20 minutes;
no less than 0,85 kg/cm2;
no more than 2,5 g/cm.