Jingbai pear
Originated in Beijing. Widely cultivated locally, it is one of the best varieties of autumn pear, suitable for the development of suburban and industrial areas in northern cities. The fruit is medium-sized, with an average fruit weight of 121 grams. Oblate, neat. Fruit peel yellow green when harvested, yellow white after storage, smooth fruit surface, waxy luster. Fruiting pedicels slender, sepals persistent. The fruit core is medium-sized, the flesh is yellow-white, ripened after 10 days, the flesh is fine and soft, the juice is extremely abundant, easy to dissolve in the mouth, the taste is thick and sweet, the quality is superior, the soluble solid matter is 14.8%, the soluble sugar is 8.94%, the titratable acid is 0.18%, the vitamin C is 4.55 mg/100g. Storage intolerance.
The tree vigor is medium, half open, the branch budding strength is strong, the branch force is weak, the average growth branch is 2.2. 7 years after planting, mature trees mainly bear fruit on short fruit branches, axillary flower buds have some ability to bear fruit, inflorescence fruit setting rate is high, average fruit setting per order is 2.3. It blooms in the middle and late April and matures in the middle and early September in Xingcheng area. The growth period is 217 days. Cold resistance is strong, like fat water, poor tolerance, easy to infect black spot disease and pear round scale insects.
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Transplanting techniques of canary jujube seedlings planted in bags
Transplanting techniques of canadelia jujube seedlings planted in bags during the project, first of all, it depends on the size of the bag and the length of time that the seedlings have been bagged. Generally speaking, the transplanting effect of jujube seedlings from one year to one and a half years is the best, and it is the easiest to survive. As long as the bag is peeled off, the seedlings are planted and the fixed roots are watered thoroughly for the first time. In the future, if it is dry and watered, there will be no need for special management. When the bag planting time is more than one and a half years, some leaves should be trimmed properly when transplanting in the upper project.
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Occurrence and control of peach gum disease
Peach gum disease is a common disease in peach trees at present, and the disease is serious, especially in peach orchards with extensive management and weak tree strength, the incidence rate can reach more than 90%. The disease seriously weakens the tree situation, affects yield and quality, and seriously leads to dead branches and dead trees. it threatens the production and development of peach trees, and it is also the most head-scratching disease for fruit farmers. First, the cause of the disease. There are two causes of peach gummy disease: one is non-infectious pathogen, such as mechanical injury, pest injury, frost injury, frost injury and so on.
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