应用树笼子以改变红星苹果树周围的温度,并确定了四个开花日期:4月2日、15日 5月7日和22日。果实的可溶性固形物、酸度、硬度和叶绿素的测定表明:提早开花所结的果实从开花到成熟的时间比正常开花的长。延迟开花所结的果实其可溶性固形物的积累比正常开花和提前开花的都少。果实最终大小随开花期延迟而减小。二个提早开花日期所结的果实显然是在呼吸前转跃期的低峰之前采 Tree cages were used to change the temperature around the apple tree of Red Star and four flowering dates were set: April 2 and 15 and May 7 and 22. Determination of soluble solids, acidity, hardness and chlorophyll of fruits showed that the fruits of early flowering had longer flowering to mature than normal flowering. Delayed flowering and fruiting of its soluble solids accumulation than the normal flowering and flowering in advance are less. Fruit final size decreases with flowering delay. The fruit of the two early flowering days is obviously taken before the low peak of the pre-breathing phase