Formation, evaluation and description of single-cross yellow maize (Zea mays L.) INIA 21
Titel:
Formation, evaluation and description of single-cross yellow maize (Zea mays L.) INIA 21
Auteur:
Yanely ALFARO JIMÉNEZ Víctor SEGOVIA SEGOVIA
Verschenen in:
Revista científica UDO agrícola
Paginering:
Jaargang 9 (2009) nr. 3 pagina's 499-508
Jaar:
2009
Inhoud:
In Venezuela, about 600.000 hectares are planted with maize (Zea mays L.) annually; the 90% of this area correspond to hybrid materials. For the year 2008, the yellow maize production represented a 42% of this area. The national demand of this type of maize in previous years was covered with imports, which represented a high payment of foreign currency. In year 2001, an impulse was given to the programme for developing yellow-maize cultivars at the National Institute of Agricultural Research (INIA) to produce single-cross hybrids with both high yield and starch content in order to diminish maize supplies from imports. Between years 2001 and 2008, the process of development and evaluation of the single-cross maize hybrid INIA 21 were carried out. It was obtained from a diallel cross of 10 lines and evaluated in regional trials in twelve and seven locations of the country during the years 2005 and 2006, respectively. In these tests, the hybrid yielded 6.353 kg ha-1, in average, showing its best performance at the location of Agua Blanca, Portuguesa state, with 9.398 kg ha-1 of yield. The characteristics of grain quality, such as starch content (78%), vitamin A (10.482 UI/g), linoleic acid (82,32%), crude protein (10,78%) and crude fat (6,48%), make this hybrid suitable for both starch and balanced feed industry. For all these reasons, the certificate of release of the single-cross maize hybrid INIA 21 was solicited at the National Seed Service (SENASEM) for the multiplication and further distribution of certified seed.
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