西辽河流域早熟、抗逆、宜籽粒机收品种鉴选试验研究

针对西辽河温热区现有玉米品种生育期偏长、抗逆性差、成熟时籽粒含水量高、脱水慢、抗倒伏性差等不适宜机械化籽粒直收的问题，依据宜机收玉米品种选择标准，进行早熟、抗逆、宜机收玉米品种鉴选试验。通过试验鉴选出该生态区宜籽粒机机械收获品种三个：迪卡159、TK601、LH501，同时确立了品种的适宜种植密度，为西辽河流域春玉米规模化、机械化生产作业提供了重要品种支撑。

Experimental Study on selection of early maturing, stress resistant, and suitable grain harvesting varieties in the Xiliao River Basin

In response to the problems of long growth period, poor stress resistance, high moisture content in mature grains, slow dehydration, and poor lodging resistance of existing corn varieties in the warm and hot area of the West Liaohe River, which are not suitable for mechanized grain direct harvesting, early maturing, stress resistant, and suitable machine harvested corn varieties selection experiments were conducted based on the selection criteria for suitable machine harvested corn varieties. Through experimental evaluation, three suitable varieties for mechanical harvesting of spring corn in the ecological area were selected: Deca 159, TK601, and LH501. At the same time, the suitable planting density of the varieties was established, providing important variety support for the large-scale and mechanized production of spring corn in the West Liaohe River Basin.