Sapium sebiferum high-quality strong seedling breeding method based on fine management
A refined management and Chinese tallow tree technology, applied in botany equipment and methods, vegetative propagation, horticulture, etc., can solve the problems of long hardwood cutting cycle and high economic cost, and achieve easy promotion, high economic benefit, and seed treatment operation simple effect
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Embodiment 1
[0046] In order to solve the problem of long grafting or long cultivation period of Chinese tallow tree and relatively high economic cost, the present invention provides a method for breeding strong seedlings of Chinese tallow tree based on refined management, which at least includes the following steps:
[0047] A. Seed Harvesting and Storage
[0048] a1. Mother tree selection, selection of healthy and pest-free trees aged 15 to 30 years for the collection of high-quality mother trees; during seed collection, the seed collection time is marked by the cracking of the autumn husk as the seed maturity;
[0049] The harvesting method adopts intercepting fruit branches or naturally shedding collection, and selects excellent tree seeds with large seed particles and full seed kernels;
[0050] a3. Seed handling and storage
[0051] After the collected seeds are threshed, cleaned of impurities, and dried, they are put into sacks or wooden barrels and stored in a ventilated and dry r...
Embodiment 2
[0078] The difference from Example 1 is that after sowing and raising seedlings in step C, the grass can be uncovered when 25% to 35% of the seed grains are unearthed, and the grass can be uncovered on a cloudy day or in the evening, and it can be carried out in 2 to 3 times. Keep the bed surface moist from time to time, and sprinkle water properly when the humidity is not enough. In addition, in the seedling stage management in step D, when the growth of Chinese tallow tree seedlings exceeds 5cm, the damage of the Chinese tallow tree chrysantha moth that occurs is prevented and controlled. The specific treatment methods are as follows: picking overwintering cocoons, black light lamps to lure moths; 750,000 heads; Bacillus thuringiensis or cytoplasmic polyhedrosis virus spray.
[0079] Seedling stage management in step D, when the growth of Chinese tallow tree seedlings exceeds 5cm, prevent and control the harm of the brown-edged green moth. The specific treatment methods are ...
Embodiment 3
[0082] The difference from Examples 1 and 2 is that when the Chinese tallow tree cuttings appear orange aphids (Toxopteracitricidus Kirkaldy),
[0083] Occurrence pattern—adults and nymphs harm new shoots, young leaves, and flower buds. In severe cases, leaves curl, new shoots die, flower buds and young fruits fall off, and bituminous coal disease is induced. There are 20 to 30 generations a year, and they survive the winter as adults or eggs. Overwintering eggs hatch into wingless weak aphids from late March to early April of the following year. At the turn of spring and summer and autumn, the number is the largest, and the damage is the heaviest.
[0084] Control methods 1) Pruning in winter, remove the damaged branches and branches with aphid eggs, and burn them; 2) Control by natural enemies. Protect ladybugs, hoverflies and lacewings, etc., and release them to the orchard to increase the number of natural enemies; 3) Spray pesticides in a timely manner. 10% imidaclopri...
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