How to determine the harvest period of apples
Release time:
2023-10-31
Source:
First, look at the color of the fruit surface.This is one of the main signs of fruit maturity. When the fruit surface of the new red Star apple changes from light red to thick red or purple, the fruit surface of the red Fuji apple changes from green to light red and dark red. It can be harvested.
The second is to count the number of days the fruit grows.The number of days of development of the fruits of each variety from blooming to maturity is basically similar in the same area, but there is little difference over the years.Fuji series 175-180 days, Gala series 110-115 days.
The third is to measure the hardness of the pulp.Near-ripe fruits, the flesh softens and the hardness decreases.Measured by a hardness tester, the pulp hardness of red Fuji apples during the harvest period for short-term storage is 5.90-6.81kg/cm2, and the pulp hardness during the harvest period for long-term storage is 6.36-7.26kg/cm2.The pulp hardness of the new Red Star during the harvest period is 6.5-7.0 kg/cm2.
Fourth, look at the color of the seeds.When apples are ripe, the surface of the seeds is dark brown, which can be used as a reference index for the appropriate harvest period.
Fifth, according to the different sales periods of the fruits.Apples that are sold late or need to be stored can be picked appropriately early.For example, red Fuji apples sold immediately after harvesting should be harvested when they are fully mature. Those planned to be sold until February of the following year can be harvested 5 days in advance, and those planned to be sold from February to April of the following year can be harvested 10-15 days in advance.
The second is to count the number of days the fruit grows.The number of days of development of the fruits of each variety from blooming to maturity is basically similar in the same area, but there is little difference over the years.Fuji series 175-180 days, Gala series 110-115 days.
The third is to measure the hardness of the pulp.Near-ripe fruits, the flesh softens and the hardness decreases.Measured by a hardness tester, the pulp hardness of red Fuji apples during the harvest period for short-term storage is 5.90-6.81kg/cm2, and the pulp hardness during the harvest period for long-term storage is 6.36-7.26kg/cm2.The pulp hardness of the new Red Star during the harvest period is 6.5-7.0 kg/cm2.
Fourth, look at the color of the seeds.When apples are ripe, the surface of the seeds is dark brown, which can be used as a reference index for the appropriate harvest period.
Fifth, according to the different sales periods of the fruits.Apples that are sold late or need to be stored can be picked appropriately early.For example, red Fuji apples sold immediately after harvesting should be harvested when they are fully mature. Those planned to be sold until February of the following year can be harvested 5 days in advance, and those planned to be sold from February to April of the following year can be harvested 10-15 days in advance.
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