Labor-saving grafting reproduction method capable of increasing emergence rate of grape rootstock cuttings

Abstract

The invention discloses alabor-saving grafting reproduction method capable of increasing the emergence rate of grape rootstock cuttings. The method comprises the steps from (1) to (6); cuttings obtained in the step (2) are placed into a woven bag after being tidily and vertically arrayed in a manner that the tops of the cuttings are located at one end and the bottoms of the cuttings are located at the other end, and the subsequent steps are carried out; cutting storage of the step (5) comprises the following substeps: arranging a storage bed on a furrow at first; placing the woven bag, with the cuttings treated by medicaments, obtained in the step (4) into the storage bed, and enabling the bottoms of the cuttings to face upwards and the tops of the cuttings to face downwards; covering the woven bag with the soil produced by the storage bed, and covering the soil layer with a plastic film. In the mid-late February to the middle March of the next year, when the temperature of the soil layer which is located below the plastic film by 20 cm is equal to or higher than 10 DEG C, storage of the cuttings is ended, and the cuttings are taken out of the soil for conventional cutting.

Description

technical field [0001] The invention relates to a method for propagating grape grafted seedlings. Background technique [0002] At present, the preparation method of grape cuttings generally comprises the following steps: [0003] (1) Collection of cuttings: [0004] Select a high-yield mother plant with pure varieties, strong plants, and no pests and diseases. During winter pruning (mid-to-late November to early-to-mid-January of the following year), cut fully mature branches with moderate internodes and full buds as seed shoots for reproduction. And hang the variety label, so as not to prevent the mix of varieties. [0005] (2) Cutting cuttings (mid-to-late November to early-to-mid January of the following year): [0006] Cut off the auxiliary shoots and tendrils, leave 2-3 bud eyes for each cutting, cut the upper end 1-2cm away from the buds, and cut obliquely at the lower end close to the buds 1cm into a horseshoe shape. Every 50-100 pieces are aligned and tied into ...

AI Technical Summary

Problems solved by technology

[0022] 2. Labor-intensive and high cost (handling of cuttings, purchase and handling of sand and sawdust, preparation of storage rooms)

[0023] 3. When cuttings are stored, if sawdust is used as filler to moisturize and stimulate roots, there is a risk of burning seedlings

[0024] 4. It is difficult to control the late extraction speed of cuttings roots and buds, resulting in a greater risk in the emergence rate of grape cuttings after entering the field

[0025] In actual operation, ① sometimes the roots and shoots of the cuttings have grown to the extent that they need to be put into the field as soon as possible, but due to various reasons, such as the ground is not well prepared, labor is not enough, or the weather forecast is about to hit the spring cold, etc., it is necessary to put the cuttings Joirida time delay

②Sometimes the external temperature has reached the conditions for cuttings, but the roots of the cuttings have not yet grown enough to be inserted into the field. If the cuttings are forced into the field, the buds will be pulled out due to the suitable temperature, but the roots will grow slower than the buds, resulting in underground growth. The roots at the bottom cannot supply enough water and nutrients to the buds in time, so that the buds that grow gradually wither; if the cuttings grow long enough roots before cutting, it is easy to delay farming, miss the best grafting time later, and affect the grapes in the same year. Grafting survival rate and nursery rate

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