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玉米自交系286-4聚合了欧洲寒带玉米种质、南北美洲玉米种质、CIMMYT热带综合种种质和国内温带地方种质的优良基因资源,是一个高配合力、高产、抗病的优良自交系,已成功培育出5个优良杂交种通过省(市)审定,并在生产上大面积推广应用。以286-4为基础材料之一经过群内重组和改良,并选育出了L-41、L-14和L-19等一批具有较好应用前景的改良系。
Maize inbred line 286-4 is a high-yielding, high-yielding and disease-resistant excellent maize germplasm with excellent genetic resources of European temperate maize germplasm, South and North American maize germplasm, CIMMYT tropical synthetic germplasm and domestic temperate germplasm local germplasm It has been successfully bred 5 excellent hybrids through the provincial (city) validation, and large-scale production in the promotion and application. One of the 286-4-based materials was recombined and improved in the group, and a number of improved lines with good application prospects, such as L-41, L-14 and L-19, were bred.