晚霜冻胁迫后冬小麦株高降低及其与籽粒产量关系

武永峰, 胡新, 任德超, 史萍, 游松财

Reduction of Plant Height in Winter Wheat and Its Relationship with Grain Yield Under Late Frost Stress

YongFeng WU, Xin HU, DeChao REN, Ping SHI, SongCai YOU

表2 基于低温室的降温处理设计

Table 2 Design of decreasing-temperature treatment based on Cold Climate Chamber

试验 Experiment 处理日期 Treatment date 处理温度及时间间隔 Treatment temperature and time interval 主茎幼穗分化阶段 Differentiation stage of young ear in the main stem 试验1 Exp.1 03-20-03-22, 2016 -11℃: 12:00-18:00; -9℃: 18:30-00:30; -7℃: 01:20-07:20; -5℃: 09:00-15:00; -3℃: 15:30-21:30; -1℃: 22:00-04:00 小花原基分化期 Floret primordia differentiation phase 试验2 Exp.2 03-25-03-27, 2016 -11℃: 12:30-18:30; -9℃: 18:30-00:30; -7℃: 01:00-07:00; -5℃: 08:30-14:30; -3℃: 14:30-20:30; -1℃: 21:00-03:00 雌雄蕊原基分化期 Pistil and stamen primordia differentiation phase 试验3 Exp.3 03-30-04-01, 2016 -11℃: 21:30-03:30; -9℃: 15:30-21:30; -7℃: 09:00-15:00; -5℃: 16:00-22:00; -3℃: 22:30-04:30; -1℃: 10:00-16:00 药隔形成前期 Early anther connective tissue formation phase 试验4 Exp.4 04-05-04-07, 2016 -11℃: 12:30-18:30; -9℃: 19:30-01:30; -7℃: 02:00-08:00; -5℃: 09:00-15:00; -3℃: 19:00-01:00; -1℃: 01:00-07:00 药隔形成后期 Late anther connective tissue formation phase 试验5 Exp.5 04-10-04-12, 2016 -9℃: 19:00-01:00; -7℃: 01:00-07:00; -5℃: 12:00-18:00; -3℃: 19:00-01:00; -1℃: 01:00-07:00 四分体时期 Tetrad formation phase 试验6 Exp.6 04-15-04-16, 2016 -9℃: 09:00-15:00; -7℃: 17:00-23:00; -5℃: 23:00-05:00; -3℃: 10:30-16:30; -1℃: 16:30-22:30 抽穗期 Heading phase