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苹果的开花物候期是年发育周期中一个极其重要的物候期。花期的早晚,开花时期的环境条件,对苹果的授粉、受精、座果、品质及产量都有着很大影响。我国地域辽阔,苹果分布广泛,研究分析各地的苹果开花物候期,探讨其变化规律,这是果树区划的重要依据之一。为此,我们在1980年搜集了全国30多个果园,5个苹果品种的开花物候期资料及当地气象资料,进行初步整理分析如下:
The flowering phenology of apple is an extremely important phenophase in the developmental cycle. The flowering period, the flowering period of environmental conditions, the apple pollination, fertilization, fruit, quality and yield have a great impact. China has a vast territory and a wide range of apples. It is one of the important bases for fruit-tree zoning to study and analyze the flowering phenophases of apple around the world and to explore its changing rules. Therefore, in 1980, we collected the flowering phenophase data and local meteorological data of more than 30 orchards and 5 apple varieties in China and conducted the preliminary collation and analysis as follows: