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Cutting seedling raising techniques of purple sweet seedless ao9 grape
Tian Zi seedless was cultivated by Li Shaoxing, a farmer in Changli, Hebei Province, and belongs to a late-maturing variety. The improved variety matured in Changli, Hebei Province in early September, with hard and crisp flesh, oval fruit, high sugar content and long fruiting time. Belonging to natural seedless products. Grape seedlings of this variety grow vigorously and have strong disease resistance. Adequate water and fertilizer are needed in the early stage of seedlings to improve the disease resistance of grape seedlings, remove side buds and tendrils in time, and provide a better growth environment for seedlings.

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Tian Zi seedless.

suborder

grape

The branch of academic or vocational research.

grape

Distribution area

Lulong Changli

Variety characteristics: the spike is large and neat, with an average spike weight of 500 grams; The fruit is oval, seedless and even, with an average weight of 5.6.

Dick. After Qibao treatment, the average single ear weight was 9 18.9 g, the highest was 1200 g, and the average single grain weight was 10 g. In the state of natural growth

Purple-black to blue-black, bagged fruit is purple-red; The peel is medium thickness, fragile, not separated from the pulp, easy to color, and can be used for bagged grapes.

The coloring is complete and full, and the coloring of ear and grain is uniform. The pulp is crisp, sliced, light blue, with medium juice content and soluble.

The solid content is above 20%, and the highest can reach 24.0%. The flavor is extremely sweet and the milk fragrance is rich. The maturity of Changli area in Hebei Province is generally in the middle of September.

, which belongs to the late-maturing table grape variety.

The plant has moderate growth potential, good early fruiting and high yield, about 3200 kg per mu. Hanging trees for a long time, good commodity, ripe fruit.

Hanging on the tree for more than 2 months, the seeds will not fall off or crack, and the storage and transportation resistance is extremely strong. Strong disease resistance and adaptability, just take measures to bury the soil to prevent cold.

Have a smooth winter.

The key points of cultivation techniques can be green branch grafting and hard branch grafting of resistant rootstocks such as Peking University, SO4 and 5BB, or hard branch cutting propagation. build

Small scaffolding or hedges can be planted in the garden. The shed spacing is 0.5 ~ 1m, and the row spacing is 4.0m; the hedge planting spacing is 0.5 ~ 0.8m, and the row spacing is 0.5m..

2.0 ~ 2.5 meters. 7 ~ 10 days before flowering, the treatment with 40000 times of "Qibao" solution can significantly lengthen the ear, make the ear loose and reduce the extrusion between fruit grains.

Stress; After flowering 15 days, the fruit was treated with "Qibao" 12500 times, which significantly promoted the fruit expansion. Generally, about 20 days after flowering, the ear shape becomes thinner.

Fruit can be bagged when it is as big as soybean. In rainy years, Bordeaux solution should be sprayed as early as possible to prevent it, and 50% bacterial solution should be sprayed before and after flowering.

Control of botrytis cinerea with 0/000 times solution of chlorpyrifos/kloc-0+800 times solution of 50% thiophanate-methyl 1 ~ 2 times solution. After fruit setting, according to the occurrence of diseases

Protective agent and bactericide are used alternately [1]