Testing of Promising Field Corn Hybrids for Recommendation of Growing after Rice Harvesting in the Upper Northern Provinces

Abstract

New field corn breeding program was initiated, to fucus good hybrids availability in paddy field harvested areas in the northern parts. The number of on farm trials conducted four provinces covering area of Chiang Rai, Phayao, Phrae and Lampang, performing dry season in 2020. The eight promising hybrids were tested, viz., UPF286, UPF205, UPF227, UPF223, UPF269, UPF282, UPF155 and UPF319. Phayao province, those hybrids were averaged 1,580 kg per rai. The comparative varieties were Department of Agriculture, Kasetsart University and private companies, viz, 1,580, 1,389 and 1,462 kg per rai. The results from Chiang Rai province that was equal to 1,537 kg per rai. Likewise, Department of Agriculture, Kasetsart University and private companies were 1,279, 1,498 and 1,444 kg per rai., respectively. Similarly to Phrae province, yield was 1,556 kg per rai. In addition, 1,363, 1,558 and 1,400 kg per rai were checks. As well as, Lampang province was 1,567 kg per rai. While, the comparative checks were 1,315, 1,520 and 1,479 kg per rai. Confidentially, the promising hybrids evaluation of the efficiency selected. Four hybrids were chosen. Namely, UPF286 and UPF282 are medium harvesting varieties. While, the early harvesting varieties are UPF227 and UPF205. Indicating determination of its are suitable pushing for further breeding or commercial varieties in the future.