| Popis: |
Trials were made in The Research Local Station of Grains areas, Sur del Jíbaro from 2005 through 2011. 27 morpho-agronomic characters were evaluated regarding the main red rice biotypes of straw-colored glumes in the province of Sancti Spíritus, Cuba, and in three commercial varieties of witness rice (IACuba-31, Perla de Cuba y Jucarito-104). It also was determined a broad diversity and variations in these features that permitted to differenciate the biotypes between them and with other rice cultivars. The purple pigmentation in some parts of the plants in the great majority of such biotype is an observable feature, seen easily, that make contrasts with the already researched, by which it helps a lot in identifying them. The great majority of the biotypes of straw-colored glumes featured an over-growned size in their sprouts, lengths and longer flag leaves, with also a prone feature to loose its grain, its nighty, broad seed and a particular resistance to Pyricularia grisea; but shorter and lighter but it also yields less per hectares. it has shown resistant to Tagosodes orizicolus, respecting the witness cultivars. |
