Research and development of corn acres of Kasetsart University. Research and Development of Field Corn Variety of Kasetsart University................................................................................................................................................Chokechai aekatasanawan 1 Golden Champa praise 1 Chamai porn EK to watch Wan 2 Chat House Municipalities of la 1 Plus he loves miniature screen 1 1 Auditorium lucky gold thotphon chat 3 glass expertise. Sutus SI Sukhumvit 3 House cultural and chin Mr. JI N 31 corn and sorghum Research Center, National Institute for the research of static chanthon Eagle and developed the Crop Sciences.Lopburi campus establishment project 2 and 3 Department of farm crops. Faculty of agriculture, Kasetsart University. Corn breeding project of Kasetsart University has been researching and developing varieties of corn acres coming continuously for a period of 45 years, divided into basic research, 20% to take advantage in the field of teaching, higher education levels and research of undergraduate master's degree and Ph.d., and re.Application research on nangan 80% in order to meet the needs and solve the problem of the country. The development of mixed species of corn hybrids and cultivars that give a high yield and disease resistance, water use, as well as planting farmers hold, have developed a genuine species, the Government and the private sector so that it can be used in the production of seeds and breeding hybrids. Research and development of cooperation received from various agencies in both countries: Kasetsart University. Department of Agriculture Department of Agriculture College, the agricultural promotion and various research organizations, as well as seed company international: the Foundation rock and fleloe cookies, corn and wheat improvement (CIMMYT), the international.Corn mixed species plantation open outstanding Corn mixed species plantation open play an important role in increasing the average yield per Rai of the Thai nation in the last two decades due to the mixed varieties turn this improved productivity high. Open water, disease resistance. Adapt well in the General environment. The seeds are cheap, and farmers can collect the seeds used are 1-3 in evil. Open mixed species from breeding, especially around the new selection has been producing seed by Government and the private sector. Farmers have the opportunity to have a very good seed. In addition Varieties of hybrids that are in range. Most also provide higher yield varieties mixed open not obvious. There are also farmers with knowledge of technology to produce more seed, and hybrids are more expensive than rates during the mixed seed opening 2-3 as farmers used corn seed mixed species plantation open rather than hybrid varieties. Corn breeding project of Kasetsart University. Research and development of varieties of corn, mixed species plantation open, continuous concentration for a period of up to 35 years and has a good mix of species introduction turned to farmers: varieties of Suwan. 1 (2518 (1975)), species of Suwan 2 (2522 (1979)), species of Suwan 3 (2530 (1987)) and varieties of Suwan 5 (2536 (1993)) mixed varieties and varieties of hybrids from the public sector and the private sector, including the improvement of field are important factors make the planting maize in the crop year 19/2518 (1975)-2534 (1991)/35 is the average yield 372 kg/average total farm output, 3.45 million tons and the average export value higher crop year 6059 billion baht (click here)2501 ูก/2-2517 (1974)/18 in which the average yield 313 kg/average total farm output, 1.23 million tons and the average export value of 1540 million. Up to 19%, 181% and 293% respectively. Although the corn varieties, hybrids are becoming more and more important role on the stage, 10 years later, but there are also mixed seed rate open. Approximately 10% of all seed quantity Varieties of Suwan 1 open a mixed species play an important role as much as possible. The country's maize production development in Thai Especially in the era of open water, disease outbreak. There are also more than 20 countries, including CIMMYT varieties have led to a promotion 1 Suwan cultivars grown and used as a fuel in genetic breeding, because it is a species that is highly stable in the output. Adaptation to a wider range of open water, disease resistance and other geographic disease in particular is a good genetic source for the extraction of pure species with yellow orange seed heads, solid. When mixed with a genuine species that have yellow seed head, stamping, or stamping head half of the maize khetopun or semi-tropical is a high productivity, hybrids, and disease resistance. Creating and updating breeder Suwan 1 start in qualifying by 2513 (1970)-2512 (1969) corn total 36 varieties, most of which originated from the country of Mexico, the Caribbean Islands and Central America 16 6 5 5 species of South American species of India and from other sources, including the United States, a combination of 4 species of Thai's.Visit mapho extension 1 (Thai Composite # 1) and then use a breeding approach S1 recurrent selection came down with the disease, epidemiology, and damage to severe corn during 2514 (1971)-2516 (1973) corn breeding projects, so start breeding resistance seriously by shutting down.Disease resistant varieties, with Philippines hold DM r 1 r 5 DM and the Philippines combined with varieties of Thai Commerce enough to visit Birmingham 1 1 qualifying round and return to visit Thai species of them, sufficient qualifying round 1 number 2 and number 3 2 and 1 times respectively, have enough visit Thai varieties by DM 1 r 3 times back, mixed (Thai Composite # 1 DMR BC3) or varieties of Suwan. 1 qualifying round at 0, which hold water, disease resistance in some degree due to mixed back time 2 and 3 have been selected and are disease resistant, and hold water in an artificial epidemic. After the qualifying round breeding at Thai varieties 2 Composite 1 in # 2517 (1974) BC3 DMR (S) C2 certified varieties from the Ministry of agriculture and cooperatives in 2517 (1974) and renamed as "breeder Suwan 1" and is currently elected to the qualifying round 12 species. Corn varieties, Suwan 1 adapt the environment widely. From the test results and the experimental planting in many countries in Asia. Africa, Central America and South America, it appears that the species of Suwan. 1, high yield in different environments has been adapted and feature is the open water, disease resistance make it a good breeder 1 Suwan foremost specialist Takumi as Dr. Izuno corn project of Asia, CIMMYT has praised the good get.
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