Biological characteristics of Xinchuan Zhongdao peach
1. Morphological characteristics: strong tree vigor and relatively open tree capital. After open-ended pruning, the 3-year-old tree is 260 cm tall, 25 cm in trunk circumference and 3×2.6 m in crown diameter. The shoots are green, the annual branches reddish brown, the trunk and perennial branches grayish brown. Dark green leaves, smooth foliage. Leaf glands reniform, small and inconspicuous.
II. Biological characteristics
(1) The phenological period is in the middle of March, the flower bud expansion period is in the middle of March, the full flowering period is from the late March to the early April, the flowering period is 57 days, the fruit matures in the middle and late July, and the growth period is 100110 days.
(2) Growing and fruiting habits Young trees grow vigorously, new shoots branch many times, if combined with 23 times of topping, stable high-yield tree structure can be formed in the same year. After entering a large number of fruits, tree vigor tends to moderate, growth is stable, new shoots are stout, germination rate is high, branches are strong, and multiple flower buds are mostly. The fruit of young trees at the beginning of fruiting period is mainly long and medium fruit trees, and at the full fruiting period is mainly medium and short fruit trees, accounting for more than 76% of the total number of fruit trees. Natural pollination fruit set rate is high, strict thinning is needed to enlarge fruit.
(3) Early fruiting and high yielding young trees in Xinchuan Island are easy to flower and bear fruit early, with early fruiting and high yielding characteristics. The seedlings bear fruit in the second year after planting, with an average of 28 fruits per plant, weighing 7.3 kg; the yield of 3-year-old plants is 26.2 kg, equivalent to 1775 kg of 667 square meters; the yield of 4-year-old plants is 46.9 kg, equivalent to 3142 kg of 667 square meters.
(4) Adaptability This variety has strong adaptability and has good growth results under different soil conditions in Liaoning, Shandong, Zhejiang, Hubei, Sichuan, Yunnan and other provinces. It can be popularized in the north and south.
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Introduction of High quality Pear varieties in Korea
Qiuhuang pear was bred by Korea Horticulture Research Institute and named Qiuhuang Pear in 1985. The parent is Jincun Qiu × 20th century. The fruit of this variety is large, the average weight of single fruit is 395 grams, the fruit is flat and round, and the pericarp is yellow-brown. The flesh is white, the core is small, the meat is fine and crisp, the soluble sugar in the juice is 14.1%, the stone cell is very few, the taste is good, the quality is high and so on. The tree has strong potential, sprouting ability and branching ability, and it can bear fruit for 2 ~ 3 years. The flowers are in full bloom in mid-April and mature in mid-October. The storage period is 120 days. Ganquan Pear Korean Horticultural Research
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Peach variety: sand is early.
Hiroshi Shangzhi, from Okayama Prefecture, Japan, found the seedlings of Shenyu and Okubo varieties purchased, presumed to be accidental, and named them in 1985 after identification. Shanghai Academy of Agricultural Sciences was introduced from Japan in 1966. The fruit is oval, the two halves are symmetrical, and the top of the fruit is round; the average weight of a single fruit is 150 grams, and the maximum weight is 400 grams; the peel is milky white, the top and sun are red, and the skin is easy to peel off; the flesh is milky white, with a small amount of red element infiltrating into the pulp, the flesh is dense, juicy and sweet.
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