摘要
1982-1985年,在拉萨进行了小麦生态试验。辽春6号属于强春性品种,泰山4号属于强冬性品种。小麦在拉萨抽穗晚、成熟迟,各生育期和全生育期明显加长、千粒重增大是其主要生育特点。温度较低、日长较短是使参试品种生育期长的重要原因。抽穗至成熟期间的昼夜温差大、夜温低和太阳辐射强烈综合作用,是使小麦在拉萨的千粒重增大的重要原因。
Ecological experiments of wheats was arranged in Lasa during 1982-1985. Liaochun 6 is a typical spring wheat, on the other hand, Taishan4 is a winter variety. Heading and maturation were postponed, so werethe growth periods and periods from sowing to maturation for wheats inLasa. The low temperature was an important influential factor. Plant he-ight of wheats was higher in Lasa, because growth periods was longer.The difference of temperature between day and night was bigger, the ni-ght temperature was lower, and the radiation of sun was stronger thanmost places in China, this contributes to the bigger weight of the seed.
基金
国家自然科学基金
关键词
小麦
西藏
生长
发育
Wheat
Tibet
Characters of growth and development
