third grade improved variety of kernel apricot
1. A swarm of bees, also named flat, Little Dragon King Hat, is one of the main varieties in Hebei. The fruit is ovate, slightly bulging than the dragon cap, with a single fruit weighing 8.5-11.0 grams, with a maximum of 15 grams, with a yellow pericarp, cracking along the suture line and leaving the kernel when ripe. The weight of single nucleus is 1.6-1.9 grams, and the nucleation rate is 18.5-20.5 percent. Kernel weight 0.52-0.62 grams, kernel rate 38.2%, kernel milky white, sweet taste. Extremely productive, but not resistant to late frost.
2. Sanjiao Banner (temporary name) Sankao Banner was selected and bred in Yuxian County, Hebei Province. The fruit is round, single fruit weighs 7.5 grams and is enucleated. The weight of single nucleus is 1.52 grams, the nucleation rate is 39.8%, and the core shell is slightly thicker. The weight of single kernel is 0.68ml 0.7 g, the kernel yield is 40.6%, almond conical, straight, full, fine kernel meat, sweet taste. The flowering stage can withstand short-term low temperature of-5.2 ℃, strong drought resistance and less fruit drop. There are other varieties of kernel apricot belonging to this class, such as Chuanling flat, Chi Bangzi, Clara, Ganzi, Chuanjiaozi, Akhuana, Suka Garner and Aksimisi and so on.
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Management of Crispy Pear trees after transplanting
1. In the winter of the same year, the old warped skin on the trunk and main branch must be thoroughly scraped off, and the scraped residue should be burned off. For the scraped trunk or branch, apply white coating or spray 5-degree stone-sulfur mixture. For disease spots such as rot on branches, cut off the disease spots with a knife, and then smear 40% Fumei arsenic 50 times solution. During the growing period, we should strengthen the prevention and control of diseases and insect pests, protect leaves and promote branches. two。 After sawing off the branches of the transplanted tree, the wound should be flattened and protected by 800 times carbendazim solution to prevent infection. Larger wounds should be sealed with cement and then covered with plastic film.
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peach gummosis
Gummy disease of peach tree is a common disease in peach trees at present, and the incidence is serious, especially in peach orchards with extensive management and weak tree vigor. The incidence rate can reach more than 90%. The disease seriously weakens tree vigor, affects yield and quality, and causes dead branches and dead trees, threatening the production and development of peach trees. It is also a disease that fruit growers scratch their heads most. I. Causes of disease. There are two causes of peach gum disease: one is non-infectious pathogen, such as mechanical injury, pest injury, frost injury, freezing injury and other wounds caused by
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