Rapid breeding method for walnut improved varieties
A high-quality and fast technology, applied in the fields of botany equipment and methods, horticulture, application, etc., can solve the problems of high production cost, poor quality, low output, etc., to speed up the pace, overcome the high production cost, and improve social and economic benefits. Effect
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Embodiment 1
[0020] The rapid breeding method of improved walnut varieties of the present invention comprises the cultivation of rootstocks, the cultivation of improved varieties of scions, the process of grafting and field management after grafting, wherein the process of rootstock cultivation comprises: deep plowing of the land in the winter of the first year, application of basal fertilizers, and thawing in the spring of the following year for furrowing , sow, and cultivate the walnut tree seedlings; it is different from the existing traditional grafting method: 1) the cultivation of good-bred scion: when the new shoot of the good-bred mother tree or the picking garden grows to 30-40cm, 3-4 buds are left for topping , Remove the thin buds at the base of the branches in time after topping and germination, and take measures to prevent the occurrence of a large number of pests and diseases; 2) Graft when the thickness of the walnut tree seedlings is about 20cm from the ground and reaches mor...
Embodiment 2
[0022] The rapid breeding method of improved walnut varieties of the present embodiment differs from Example 1 in that it further discloses the specific steps for grafting and adopting large block bud grafting:
[0023] 1) The interface is 18-22cm away from the ground, and after the connection, two compound leaves are left above the incision for the first anvil cutting;
[0024] 2) Cut the anvil for the second time when the buds germinate 5-10cm, this time the anvil cut is 2-3cm away from the top of the splice;
[0025] 3) Loosen the buds when they grow to 10-20cm, and intertill, weed, topdress, shade and prevent pests and diseases in time.
Embodiment 3
[0027] The rapid breeding method of the improved walnut variety of this embodiment, combined with reality, more specifically illustrates the realization process of the technical solution of the present invention:
[0028] 1. Select a test site with good irrigation and drainage conditions. The soil of the test site is cinnamon soil with a pH value of 7.2, the annual sunshine hours are 1988, the precipitation is 980mm, the frost-free period is 210 days, the annual average temperature is 13.2°C, and the area is 200㎡.
[0029] 2. Rootstock cultivation
[0030] 1. Soil preparation and sowing: deep plowing of 20-30cm in the winter of the first year, combined with deep plowing per mu, apply 100 loads of human excrement (a total of 30 loads in this test site).
[0031] After the thaw in the spring of the following year, make a furrow. The width of the furrow is 2 meters, the length is 15 meters, and the height of the furrow is 20 cm. Keep the furrow surface level and the soil finely...
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