The fruit of Hutai No. 8 grape for several years

Hutai No. 8 grape was selected by Xi'an Grape Research Institute through Olympia bud mutation. It was approved by the 18th crop Variety approval Conference in Shaanxi Province on January 10, 1996. So do you know the fruit of Hutai No. 8 grape for several years?

1. How many years did Hutai No. 8 grape bear fruit?

It usually takes two years to bear fruit, and it belongs to the hybrid of Europe and America. The tender shoot is green, the tip is half-open with purplish red, and the villi are moderately dense. The young leaves are light green, the leaf margin is purplish red, and the lower surface is medium white tomentose.

Second, fruit characters

The mature period is from mid-July (one fruit) to early and mid-September (three fruits). The fruit orchard is cone-shaped with accessory spike, medium tightness, 30cm × 18cm per ear, ear weight 600-1000g, fruit grain nearly round, vertical diameter 29mm, transverse diameter 28mm, thick fruit powder, medium thick pericarp, top purplish black, tail purplish red, large grain size, average single grain weight 10.4g, maximum grain weight 18g, sugar content 1721%, acid content 0.5%, sweet and sour delicious, peel and pulp easy to separate, crisp flesh, no flesh capsule. There are 2 seeds per fruit. After the ear is ripe, the tree can be hung for 1 month, and the goods can be supplied for 7-8 days after picking. As a result, the shelf life is prolonged many times, and the harvest period can be extended from mid-July to mid-October.

2. Key points of cultivation techniques

1. Build a garden

Plant line spacing 1.5 × 2.8-3m, using high, wide, vertical T-frame or three-wire Y-shaped frame, management before promoting post-control is the most suitable. Plastic surgery can be completed in two years.

two。 Pruning

The root system of this variety is developed and its growth is strong. 4 buds should be controlled in winter pruning, which can be left little or not for spare branches. Remove 7 leaves and remove all summer buds and tendrils before cutting flowers in summer.

3. Control of negative planting quantity

This variety has high yield and strong fruiting ability for many times, so the amount of fruit should be strictly controlled. The first fruit should keep 750-1000kg per mu, and the secondary fruit should be controlled at 1250-1750kg per mu, and the annual yield per mu should be more than 2000kg.

4. Fertilization and irrigation

It is necessary to apply sufficient base fertilizer and strengthen topdressing. The water control period is from 10 days before the fruit blossom to the whole flowering period, except for the fruit coloring period in late June, other times should be irrigated timely according to the situation.

5. Pest control

The variety had strong disease resistance and no obvious diseases and insect pests were found in the annual regional test. In production, early prevention and early treatment, combination of prevention and control and comprehensive control should be achieved according to the occurrence law of grape diseases and insect pests and the characteristics of the variety.