摘要
通过两年对水稻新品种“奇选42”进行分期播种试验,研究温度和太阳辐射对其生育和产量的影响。结果表明,温度偏高,太阳辐射偏强,其生育速度加快。在产量形成时期,特别是在抽穗前20d至成熟期间,温度过高或过低都会使产量降低。并提出该品种的适宜播种期和提高产量应采取的措施。
The experiment with different seeding-time for a new variety of rice, Qixuan 42, was conducted for two years to investigate the influence of temperature and solar radiation on the growth and yield of the variety. The results showed that the plants grew faster with higher temperature and stronger solar radiation. During the yield formation stage, especially from twenty days before the rice heading to maturity, if the temperature was too high or too low, the yield of rice would decrease. The suitable seeding-time and the measures for improving the yield of the variety were suggested.
关键词
水稻
奇选42
气温
日射
发育
产量
paddy rice
Qixuan 42
air temperature
solar radiation
growth
yield
correlation analysis
