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Noteworthy specific germplasm of wild apricot (Prunus sibirica) in Chaoyang, Liaoning
Abstract: We surveyed apricot germplasm resources in Chaoyang City, Liaoning Province, and identified 11 specific germplasms, including 3 kernel-use germplasms, 4 landscaping germplasms, and 4 germplasms pending further identification. These new germplasms not only enrich the apricot germplasm resources of Liaoning Province, but also lay a material foundation for breeding new cultivars. Keywords: apricot germplasm, kernel use, landscaping. Chaoyang City, Liaoning Province is one of the main apricot production areas in China, with a long history of apricot cultivation. In the past, local wild apricots were mostly propagated by seed, and the genetic differences of wild apricot at the three levels of individual, stand and provenance were fully differentiated and accumulated.
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What are the specific operation methods for broodstock rearing ponds?
The daily operations of the managers in the rearing pond directly affect the feeding of the broodstock and the success or failure of the rearing. Because the large yellow croaker is very timid and easily startled, the sounds made by managers walking around in the rearing room, feeding, handling tools, and so on, as well as the sudden change in lighting caused by opening the door, may cause the large yellow croaker to temporarily stop feeding or feed less, and may cause it to swim wildly and dash about, so that it hits the pond wall or jumps out of the pond, causing injury or death and affecting the normal development of the broodstock's gonads.
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Detailed Guide to the Specific Use of the Swine Triple Vaccine
The swine fever-swine erysipelas-swine pasteurellosis vaccine protects against three diseases with a single injection, making it both economical and convenient to use, and it is highly favored by farmers. If not used correctly, it will not provide good protection. To use it correctly, the first step is to choose a suitable diluent. In general, inactivated viral vaccines have a better immune effect when diluted with normal saline, while inactivated bacterial vaccines have a better immune effect when diluted with their aluminum hydroxide adjuvant. The swine triple live vaccine diluted with normal saline produces a swine fever immune effect consistent with that of the swine fever single vaccine,
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Snake breeding and selection is carried out in three steps, with the specific methods explained in detail
Strengthening the artificial breeding and selection of snakes is of great significance for improving the reproductive survival rate, growth and development speed, product quality and economic benefits of snakes. It is a task that cannot be neglected in a snake farm and must be carried out year-round with persistent effort. In breeding and selection, the following three points should be done well: 1. Selection of breeding eggs. The breeding eggs placed in incubation must be fresh and of high quality. Eggs stored for a long time have a low hatching rate and a high mortality rate, and the hatchling snakes are weak and grow slowly. Therefore, the female snake should be checked frequently before laying eggs, and when the eggs are found to be approaching the cloaca,
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Detailed explanation of the specific operation techniques for flower and fruit thinning in pear trees
1. Master the timing of flower and fruit thinning. Flowering, fruit set, and the number of cells in young fruit are mostly determined by stored nutrients. Remove as many excess flowers and fruits as possible to reduce wasteful consumption and concentrate all nutrients on the flowers and fruits that should be retained, so they can grow into large fruits. Therefore, from this reasoning, earlier thinning is better: thinning flower buds is better than thinning flowers, and thinning flowers is better than thinning fruits. However, decide whether to thin buds, thin flowers, thin fruits, or combine all three according to the year's flower quantity, weather during the flowering period, tree vigor, fruit-setting ability, and other conditions. For pear orchards with a large flower quantity (an "on" year), good weather, and a heavy workload, you can
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Which specific site should be chosen for injecting snake food
We advocate that all incoming food, besides the necessary disinfection, must also be injected with some disease-preventing and deworming drugs, so as to fundamentally keep snakes from getting sick and reduce illness. Injecting these live small animals is quite particular; it is best to use an adjustable continuous syringe (sold in veterinary drug stores). With ordinary syringes, small doses are hard to adjust, and sometimes you may "kill" them. If the snakes you keep do not eat dead food, then it is wasted. Through practical operation we found that for chicks the injection site should be above the chicken neck for subcutaneous injection; for toads inject into the muscular inner thigh
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Detailed Explanation of the Cultivation Technical Specification for Golden Privet
Golden privet (Ligustrum vicaryi) is a semi-evergreen or deciduous small shrub of the genus Ligustrum in the family Oleaceae. With its golden-yellow color, it is widely used in urban and rural landscaping in China. To improve seedling quality and the landscape effect of garden cultivation, the author of this article led the compilation of a local standard, the Cultivation Technical Specification for Golden Privet in the Tianjin region. The main technical points are excerpted as follows. 1 Site conditions: good drainage and irrigation conditions, flat and open, various types of sandy loam and loam rich in organic matter, pH range between 6.5 and 8.5, total salt content below 0.3%
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Several Key Control Points for Large-Specification Hairy Crab Culture in the Yellow River Estuary
In order to build up the "Yellow River Estuary" aquatic product brand and enhance the market competitiveness of "Yellow River Estuary" hairy crab, in 2005 Kenli County, Shandong Province, carried out a large-specification "Yellow River Estuary" hairy crab culture trial in a ten-thousand-mu river crab demonstration park, achieving good economic and social benefits. We now discuss several key technical issues in the culture process with fellow practitioners. 1. Pond ecology. Influenced by traditional concepts, many units follow fish-culture methods when building ponds and rearing crabs, with poor results, low survival rates of "Yellow River Estuary" hairy crab,
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Eight key points for walnut cultivation; only by applying techniques according to the specific conditions can you achieve high yields
Only by applying techniques according to the specific conditions can you achieve high yields. Eight key points to note in walnut cultivation
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What are the specific signs of nutritional imbalance in female rabbits?
In what specific ways does nutritional imbalance in female rabbits manifest?
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