关键词: 杂交晚稻, 天优8012, 播种期, 产量

Abstract: A field experiment was carried out to explore the appropriate sowing date of single season rice combination Tianyou 8012. The results showed that Tianyou 8012 is suitable for planting in Zhejiang Province for single late season rice． It can be normal heading and grain filling when sowing date from May 20th to June 9th. However, with the delay of sowing date, the full heading stage and maturity stage is also pushed back. Tianyou 8012 has high 1 000-grain weight and seed setting rate under appropriate seedling age. In this experiment, the yield and daily output of the treatment with May 25th sowing, 35d seedling age was significant higher than the other 4 treatments.

Key words: hybrid late rice, Tianyou 8012, sowing date, yield