Method for seamlessly updating grape variety through trunk top grafting

Abstract

The invention relates to a method for seamlessly updating a grape variety through trunk top grafting, and belongs to the technical field of grape grafting. The method for updating the grape variety comprises the following steps that 1, scion variety branches are stored; step 2, grafting scion variety branches; step 3, cultivating a scion variety; 4, branches and trunks of the original variety are cut off; 5, cultivating the scion variety; 6, trimming auxiliary shoots of the scion variety, and performing conventional management on the scion variety; according to the grape variety updating method, the problems that no yield exists in the current updating year, subsequent bud picking is tedious, scions of new varieties are weak in development, and grafting positions are disordered are solved.

Description

technical field [0001] The invention belongs to the technical field of grape grafting, and in particular relates to a method for seamlessly renewing grape varieties through high-position grafting of trunks. Background technique [0002] In recent years, China's grape industry has developed rapidly, and grape varieties have gradually become more abundant. In viticulture, due to the replacement of grape varieties, it is often necessary to shovel out the tree body of the original variety of Tanaka before planting the tree body of the scion variety. [0003] Chinese patent CN112868463A discloses a method for changing varieties in a vineyard, which includes the following steps: 1. Preparation of scions: collect grape branches of annual scion varieties in November of the first year, then carry out stratification treatment, and dig out in mid-March of the second year. Cut it into 3-5cm long scions, each section of scion has 1-2 buds, and store it at 4-7°C; 2. Preparation of rootst...

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Problems solved by technology

[0003] Chinese patent CN112868463A discloses a method for changing varieties in a vineyard, which includes the following steps: 1. Preparation of scions: collect grape branches of annual scion varieties in November of the first year, then carry out stratification treatment, and dig out in mid-March of the second year. Cut it into 3-5cm long scions, each section of scion has 1-2 buds, and store it at 4-7°C; 2. Preparation of rootstock: treat the renewed grape seedlings in November of the first year Carry out short-cutting treatment. After the grape seedlings to be renewed in the second year grow 5-6 leaves a little, choose a branch to top and treat it as a rootstock, and erase the remaining new shoots; 3. Work before grafting: the second year 4 In the last ten days of the month, cut the scion obtained in step 1 into a wedge shape, cut a 1.5-2.5cm long slope on the back of the top bud, and cut a 1-2cm long slope on the other side; 4. Grafting: in the second year Carry out grafting in the last ten days of April. Firstly, cut longitudinally at the edge of the midline of the cross-section of the rootstock, and the depth of the longitudinal cut is 2 to 3 cm. Then insert the long oblique surface of the cut scion into the rootstock, and wrap the grafting interface with a film; 5. Management after grafting: After the grafting is completed, remove the new shoots growing on the rootstock in time. When the grafting interface begins to swell, remove the wrapping film, and then manage according to the grape cultivation management method; Yield, at the same time, there are more buds below the grafting interface, and new buds will continue to germinate. Frequent bud wiping is required for 1 to 2 years after grafting, and the workload is heavy

[0004] As another example, Chinese patent CN113141898A discloses a method of grafting and replanting that does not affect the output of grapes in the same year, including the following steps: 1. Cultivate latent buds, and start to pour the whole garden with a special germination accelerating solution 15 days before spring germination and spray the latent buds. 7 days apart each time, keep the soil moist in the garden and promote the germination of latent buds; 2. Grafting of green branches, grafting in time after the branches are semi-lignified at the turn of spring and summer; 3. Traction of branches, timely traction of grafted branches , to ensure the upright growth of the scion; 4. Timely high cutting; 5. Reasonable pruning; although the patent achieves continuous results, the cryptobud development is weak, the green branch grafting time is late, and the scion growth time is short, which is not conducive to tree construction. And failed to avoid a lot of follow-up germination work

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