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Miguang
A grape variety, scientific name: (Vitis vinifera× v. Labrusca)' Miguang', passed the category: authorization, serial number: Ji S-SV-VV-020-20 13, selected by hebei academy of agriculture and forestry Changli Fruit Research Institute, selected by Zhao Shengjian, Guo Zijuan, Ma Aihong and Yuan.
varietal characteristic
The tip of the tender tip is half-open, and the fluff is colored; Young leaves are burgundy, mature leaves are green and 5-lobed. Mature branches are smooth and reddish brown. Early maturity, fruit ripening in early August; The fruit is crisp, with strong rose fragrance, purple-red, and fully mature purple-black.
The pulp is hard and crisp, tastes extremely sweet and has excellent quality. Soluble solid content 19.0% or more, titratable acid content 0.49%, solid-acid ratio 38.8. Storage and transportation resistance.
The ear is big and the grain is big, with an average ear weight of 720.6 g; The fruit is large, with an average single fruit weight of 9.5g；; Early fruiting, high and stable yield, with an average of 65438 0.35 panicles per fruiting branch; High yield, with an average of 1806.7kg/667m2 in 3-5 years, which is 8.0% higher than that of Dumi variety.
Key points of cultivation techniques
Cutting and grafting can be used for reproduction. The cultivation in shed should be done by shaping the stem of Dulong, with plant spacing of 0.8 ~ 1m and row spacing of 4.0m, which is suitable for planting 167 ~ 208 plants/667m2; Hedgehog cultivation can be carried out in the form of single-stem and single-arm dragon stem pruning or V-shaped shaping; The plant spacing is 0.6~0.8m and the row spacing is 2.2~2.5m It is suitable for planting 333 ~ 378 plants /667m2.
Pay attention to thinning buds, wiping tips and picking tips to facilitate ventilation and light transmission. When raising seedlings, the base fertilizer is 4000 ~ 5000 kg/667m2. Bagging the ear, 25 days after flowering, shaping and thinning the ear, and bagging is suitable when the fruit is big.