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向日葵早熟与中熟两组品种在4个地区两年含油量积累动态的观察结果表明，灌浆初期的温度是当年油葵含油量高低的重要制约因素；含油量积累速度和积累高峰期随地域不同而有差异；含油量的积累与花期积温和气温日较差呈显著正相关。
The results of two-year oil accumulation in sunflower early maturing and medium maturing varieties showed that the temperature at the early filling stage was an important limiting factor for the oil content in the current year. The accumulation rate of oil content and the peak season of accumulation were different But there was a difference. There was a significant positive correlation between the accumulation of oil content and the accumulative temperature of bloom and the day of temperature.