Selection and development of maize varieties
2005
Ngo Huu Tinh
In Vietnam, maize ranks the second after rice. In last two decades maize production have gained some optimistic results on yield, area and production. Maize yield increased from 14.9 q/ha in 1985 up to 34.9 q/ha in 2004, area from 392,200 ha up to 990,400 ha and production from 584,900 MT up to 3,453,600 MT. Developing ratios per year of yield, area and production are 6.7 percent, 7.6 percent and 24.5 percent respectively. Breeding new maize varieties is one of the contribution in this success. In last two decades a series of maize varieties have been released in production. Out of which 9 OPVs and 21 hybrids are recognized as national maize varieties. In order to meet the target of the government by the year 2010 maize production of 5-6 million MT, there are some orientations for maize breeding as follows: Giving the priority for breeding early maize varieties with high yield and good tolerance and resistance to adverse conditions; Breeding OPVs for the difficult regions, paying attention in the local speciality as Nu, local flint... for fresh consumption; Researching germplasm according to orientations such as developing population in heterotic groups, breeding new generation inbred lines....; Up date information, exchange germplasm, documents and experiences through international cooperation; Education youth staff; More investment for research in both fund and equipment
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