What season is the fruit of grapes? What are the key points of hardwood cuttage techniques?

Grape varieties are very many, sweetness is also different, from the color of the peel can also be distinguished. Everyone loves a big, sweet seedless grape. In what season are grapes? What are the technical points of hardwood cuttings in the planting process? Let's take a look.

What season is the fruit of grapes?

Grapes are fruits of late summer and early autumn. Grape in nature due to planting boundaries and varieties of reasons, mature time is not the same, generally divided into early maturity, late maturity, late maturity and other three varieties.

In the south of our country in June to July mature, and Xinjiang and other higher places are in August to September mature, from the general point of view of the grape maturity in July to October, other seasons of grapes are mostly greenhouse cultivation.

From the geographical point of view when grapes mature, the grapes in the south generally ripen in June and July, while the grapes in Turpan, Xinjiang are ripe in August and September. Although the ripening period of grapes varies, in the north we see that in summer, grapes begin to appear.

2. Technique of Grape Hardwood Cutting Seedling

(i) Collection and cutting of seed strips

1. Seed strip collection: Seed strip collection is generally good after the tree leaves fall and before the sap flows in early spring, that is, it is good to collect in the dormant period of the tree, when the stored nutrients in the seed strip are sufficient.

2. Cutting of cuttings: Cutting cuttings should be carried out indoors and in shade sheds. When cutting ears, remove the parts where the tip tissue is not full and not completely lignified, and cut cuttings 12 cm to 18 cm long. 2 - 3 buds are left in the cuttings.

(ii) Cutting

1. Cutting time: grape cuttings can be used in spring, summer and autumn, but in Tianshui area, autumn and spring cuttings are the main seasons, and late autumn plastic film cuttings have the best effect.

2. Cutting density: The density of cuttings directly affects the yield and quality of seedlings. 3-row cuttings with wide film were adopted in production, i.e. row spacing 30~35cm and plant spacing 10~12cm.

(iii) Management of cuttings

1, irrigation: timely irrigation is one of the key measures for grape cuttings survival. After cutting, it is necessary to immediately irrigate water once, and timely check the film and around the cutting. If there are holes, immediately bury them with wet soil to avoid moisture loss, cutting drying (overflow) and weed breeding.

2, wipe bud fixed seedlings: grape cuttings, seed buds more and faster, to timely wipe bud fixed seedlings, fixed seedlings to do good to bad, keep a healthy bud.

3. Fertilization and pest control: In addition to applying a large amount of base fertilizer before seedling raising, topdressing should be applied 2~3 times. Grape seedlings are easy to be infected with black pox and downy mildew. A small amount of Bordeaux mixture should be sprayed 4~6 times, and 25% metalaxyl or 600 times metalaxyl copper solution should be sprayed 1~2 times. If felt disease, planthopper and two-star leafhopper occur, the mixture of sulfur and stone can be sprayed at a density of 1.002~ 1.003 kg/L or 800~1000 times imidacloprid.

4, weeding pruning: plastic film cutting seedlings do not need to loosen the soil, but to clean up the seedlings and weeds between the film in time. In weeding at the same time to wipe out axillary buds in time to promote healthy growth of seedlings.