KẾT QUẢ ĐÁNH GIÁ KHẢ NĂNG SINH TRƯỞNG, PHÁT TRIỂN CỦA MỘT SỐ TỔ HỢP NGÔ LAI MỚI NĂM 2009 - 2010 TẠI TRƯỜNG ĐẠI HỌC NÔNG LÂM THÁI NGUYÊN

The growth and development of 15 maize combinations in 3 seasons (spring 2010, autumn 2009 and 2010 at Thai Nguyen University of Agriculture & Forestry, Thai Nguyen province) were assessed. The IL3 X IL6 combination was identified as a line with good growth and development. Its average growth period was between 98 and 110 days, which was similar to those of LVN4 and LVN99; the final stem length and the length at corn developing stage were shorter than those of the two control treatments. It also had good resistances to pests and wind together with a rather high and stable actual productivity. In spring 2010, its productivity reached 76.81 quintals/ha, equivalent to that of LVN4 (75.15 quintals/ha) and higher than that of LVN99 (66.27 quintals/ha). Morevoer, its actual productivities in autumn seasons ranged from 73.34 to 75.55 quintals/ha, which were higher than those of the two control treatments at P≥ 0,95 level of confidence.