Proceedings of the Fifth Asian Regional Maize Workshop - Search ...

equested on the correlation between these two traits.
Malaysia (Dr. L. C. ann)
Requested high yielding (about 4 t/ha) germplasm in any maturity group as they are not
concerned about the maturity. They are also interested in mechanization of the crop. He
requested hybrid trials originating in Thailand. Trials from Mexico can not be accepted due to
phytosanitary problems.
Thailand (Dr. C. Chutkaew)
He requested varieties suitable for paddy fields in the off-season, especially for heavy
paddy soi ls.
A representative from the private sector wanted to know if commercial hybrids would also be
tested in the region through the Tropical Asian Maize Network (TAMNET) organized by FAD.
However, Dr. N. N. Singh indicated that only public materials would be tested in TAMNET.
China (SOUth China) (Mr. C. Zehui)
It was reported that Fusarium stalk rot, turcicum leaf blight, drought, and infertile soils
were the major problems in South China. The delegates expressed their desire to participate in
CIMMYT programs directed to solve these problems.
Myanmar (Mr. U. S. Htun)
Requested assistance from CIMMYT in solving the main constraints for hybrid corn work in
Myanmar:
1. Limitation on breeding material for inbred development, and
2. Lack of trained manpower.
Laos (Mr. B. Kanyavong)
COrn borer and downy mildew are the major problems, along with the lack of trained manpower.
CIMMYT and other programs sould assist in these needs.
Vietnam (Dr. T. H. Uy)
He stressed the development and availability of improved germplasm with the following
characteristics required in this country:
1. Early and medium maturity.
2. Resistance to Rhizoctonia leaf and sheath blight, and drought
3. They are also interested in participating in the hybrid program of CIMMYT.
4. They are willing to exchange inbred lines with other countries.
5. They are interested in exchanging information on OPVs.
6. It was requested CIMMYT continue offering training positions and organize courses on hybrid
maize technology. Study tours of scientific staff to other countries were also suggested.
Bangladesh (Dr. K. M. Kabir)
At present only composites are being grown in Bangladesh. Although there is much land that
could be planted with maize, it would require materials tolerant to saline soils. It was also
stated that government policies should be developed to promote maize production in this country.
India (Dr. N. N. Singh)
The need exists to have inbred lines evaluated to develop single cross hybrids. Other
interested national programs and CIMMYT should work on this.
The Coordinator of the Maize Program informed the meeting that the first priority of the
program is to work on Chilo partellus corn borer resistance, and then they would look for resistance
to other corn borers. The establishment of regional networks to solve the following
problems was suggested:
259