JPH11196673A - Simple dormancy of cherry tree - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple method for performing a dormancy of a cherry tree artificially, so as to satisfy the period of the dormancy thereof for setting a harvest time to hasten the blooming and bearing fruits. SOLUTION: This method for performing a dormancy of a cherry tree is provided by putting the cherry tree in a light-shaded refrigerator before the fall of the leaves to stop the photo-synthesis, gradually lowering the temperature in the refrigerator for prompting the dormancy close to that in the nature, then spontaneously awakening the tree after a prescribed dormancy period, and then transfer the same into a heated facility for blooming and bearing fruits.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple dormancy method characterized in that cherry blossom trees are artificially dormant and flowering and fruiting are accelerated by satisfying dormancy time.

[0002]

2. Description of the Related Art In the cultivation of fruit trees such as grapes, peaches, apples, and the like, forcing cultivation has been conventionally carried out by using forcing cultivation technology to harvest earlier than the harvest time in a natural environment. In this forcing cultivation, since the harvest time is limited to a certain time, high-value-added goods are provided by supplying the goods at other times.

[0003] Generally, in cherry cultivation, cultivation in a house is accelerated by flowering and fruiting by heating a fruit tree by heating the fruit tree. However, in cultivation in a house, it is difficult to control the temperature. The limit was to accelerate the harvest for a few months.

[0004]

In cherry cultivation, a cultivation method has been developed in which fruit trees are put into a refrigerator and put to sleep to control the harvest time freely, as disclosed in Japanese Patent Application Laid-Open No. 5-236828. In this method, the temperature is lowered while gradually shortening the light, and a means for forcibly removing the leaves to bring them into a dead state is required.

[0005]

Means for Solving the Problems The applicant of the present invention has been working on cultivating cherry orchard to artificially make the fruit tree artificially dormant using a refrigerator using a container or the like to advance (delay) the flowering / harvesting period. As a result of continuing research over the years, the present invention has been achieved, and the method for dormant cherry fruit trees according to the present invention stops photosynthesis in a refrigerator in which light is shut off before falling leaves and gradually lowers the temperature in the refrigerator. In this way, natural leaf fall and dormancy are promoted, and depending on the varieties, dormancy is carried out for about 1500 hours, and thereafter, waking up from dormancy and flowering and fruiting are performed.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In the following, embodiments of the present invention will be described. Cherry fruit trees are grown for a required period of time, and after harvesting, they are put into a refrigeration facility in which light is shut off before defoliation, and photosynthesis is stopped. , Gradually lower the temperature gradually to make the environment, let the leaves fall in a natural state, the minimum temperature 3 ~
Completely sleep at 5 ° C. After a predetermined dormancy period, the internal temperature is raised to about 10 ° C. to spontaneously awaken from dormancy, and then transferred to a heating facility such as a house for flowering and fruiting.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment of the method of the present invention will be described with reference to "Sato Nishiki" which is the most popular cherry variety. The implementation site is Aratani, Tendo City, Yamagata Prefecture. The tree for cultivation is a tree with leaves that have been harvested for about 3 to 4 months and are handled in a potted state. This potted cherry fruit tree is placed in a refrigerator.

[0008] Referring to the above table, the temperature in the refrigerator is set at a temperature 5 ° C. lower than the outside temperature, and potted cherries are arranged in the refrigerator. Then, decrease the temperature by 2 ° C every 4 days,
When it reaches, it goes into a sleep period.

Therefore, when the outside air temperature is 20 ° C.,
It takes days, and it takes 8 days when the outside temperature is 10 ° C. The leaves are attached at the time of entering the warehouse due to this temperature control, but after about 15 to 20 days, the leaves wither and fall off. In addition, it is necessary to pay attention to the humidity during the period when these leaves are attached and watering.

The cherries and Sato Nishiki who have entered the dormant state as described above raise the refrigerated temperature to about 10 ° C. after a dormant period of 1700 hours and leave them for 5 days to spontaneously awaken from dormancy. Then, it is moved to a house or the like and heated to flower and bear fruit. The period required for this dormancy depends on the cherries as described above. In the case of the Takasago variety, good results were obtained in 1200 hours.

[0012] As described above, the work of putting the cherry to sleep is performed manually, so that it can be set in accordance with the time of harvest and shipment. For example, when the cherry is to be shipped on Christmas or New Year, it is necessary to store it in the refrigerator around April. By putting in, after a sufficient rest period, it wakes up in around September, blooms in October, and can harvest and ship in December.

[0013]

As described above, the simple dormancy method for cherry orchard of the present invention is only to control the temperature in the refrigerator, and a sufficient dormancy can be obtained without light, so that the dormant period is entered in a relatively short period. Therefore, an epoch-making work effect not seen in the conventional forcing cultivation, which is easy to perform in accordance with the shipping time, is achieved.

Claims (1)

[Claims] After cherries have been grown for a required period of time, they are put into a light-shielded refrigerator before falling leaves, photosynthesis is stopped, and refrigeration temperature is gradually lowered to promote a diapause close to nature, and after a predetermined diapause period. A simple dormancy method for cherry orchards characterized by spontaneously awakening dormancy and then transferring to a heating facility to bloom and bear fruit.