对引进耐冷资源的杂交后代材料芽期耐冷性研究初报

通过对综合性状较好的早稻材料与云南耐冷性资源材料的杂交后代材料M1 、M2 、M3的芽期耐冷性测定 ,发现杂交后代材料M1 、M2 、M3的耐冷性均达 3级标准 ,即杂交后代具有很强的耐冷性。试验还表明 ,即使是耐冷性很强的材料对低温冷害时间也有一定的忍耐限度。该试验为今后耐冷材料的筛选和应用提供参考

Preliminary Research on the Cold Resistance of the Filial Generation of Introduced Rice Resource in the Germination Period

The experiment in the examination of the cold resistance of the filial generation from the early-season rice material with good integrated trials crossed with rice resource materials with the cold resistance introduced from Yunnan Province was conducted. The result indicated the filial generation M 1, M 2, and M 3 had high cold resistance that reached to level 3, and also the experiment showed there was a time limitation of low temperature and cold-weather damage to the material with the cold resistance even though the material had high cold resistance. The reference was provided for the breeding programmer in the selection and application of the material with cold resistance.