Method for improving grafting coalescence rate of torreya grandis
A technology of positive crown rate and Torreya japonica is applied in the field of improving the grafting positive crown rate of Torreya japonica. The effect of promoting positive growth and abundant storage
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Embodiment 1
[0025] Embodiment 1, the method for improving the positive crown rate of Chinese torreya grafting
[0026] Time: Torreya grafting at 10 am on March 15, 2012
[0027] Location: Tunxi District, Huangshan City, Anhui Province, located in the northern edge of the mid-subtropical zone, with a mild climate, four distinct seasons, and abundant rainfall. The annual average temperature is 16.3°C, the annual frost-free period is 237 days, and the annual precipitation is 1670mm. Class and yellow soil, slightly acidic.
[0028] Grafting material: The rootstock for grafting is the 4-year-old seedling of Torreya torreya, planted in the spring of that year.
[0029] Grafting method: pith cambium butt jointing method (scion beveled to pith, rootstock beveled to cambium).
[0030] The grafting operation steps are: (1) scion production: select the scion bar with full terminal buds, and remove the scion blades from top to bottom. Keep about 2-3cm long at the top of the fringe bar, and cut it ...
Embodiment 2
[0036] Embodiment 2, the method for improving the positive crown rate of Chinese torreya grafting
[0037] Time: Torreya torreya grafting was carried out at 10 am on March 17, 2013. There were 300 sample plants, of which 250 were reverse grafted and 50 were directly grafted. The grafting survival rate was 100%.
[0038] Location: Jixi County Zhentou forest farm mountain, climatic conditions are similar to Example 1.
[0039] Grafting material: the rootstock for grafting is the 5-year-old seedling of Chinese torreya, which is planted in the spring of that year; the grafted scion is made by the following method:
[0040] 1) Use a grafted seedling mother plant with a seedling height of 100-150 cm, normal tree growth, and no pests and diseases; at the 1 / 2-3 / 4 of the branches of the grafted seedling mother plant, tie the branches with ropes and lower them towards the ground. , making the angle of inclination between the branch and the main trunk reach 45-60°; 2) within 8h after th...
Embodiment 3
[0044] Embodiment 3, the method for improving the positive cap rate of Chinese torreya grafting
[0045] Time: Torreya torreya was grafted at 10 am on March 16, 2014. There were 320 sample plants, of which 280 were reverse grafted and 40 were directly grafted. The grafting survival rate was 100%.
[0046] Location: Nursery in Zhentou Forest Farm, Jixi County, where the climatic conditions are similar to Example 1.
[0047] Grafting material: the rootstock for grafting is the 5-year-old seedling of Torreya torreya, planted in the spring of that year; the grafted scion adopts the following method to make: 1) adopt seedling height 100~150cm, the growth of tree body is normal, the mother plant of grafted seedling without disease and insect damage; The branches of the grafted seedling mother plant are 1 / 2 to 3 / 4 upwards, and the branches are tied with ropes, and they are lowered towards the ground, so that the inclination angle between the branches and the trunk reaches 45-60°; 2) ...
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