Amphisarca Lists
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Control techniques of peach blossom leaf shrinking disease
First, symptoms and damage to the disease occur from time to time in the south, causing branch blight when the disease is serious, affecting ornamental. The disease is mainly harmful to leaves. In early spring, the leaf margin curls downward, the local or whole leaves of the diseased leaves become blister-like, the leaves become thicker, brittle, yellow or red, and the leaves are twisted. The disease is covered with gray-white powder layer in early summer, and the leaves fall early when the disease is serious. The young shoots were grayish green or yellow when damaged, the internodes were short and thick, slightly curved, and the upper leaves were clustered and curled. The branches withered when they were seriously ill. Second, the pathogen and the characteristics of the disease
2019-01-16 -
Grey jujube
The main producing area is Zhengzhou and Xinzheng in central Henan. The fruit is long oval, the single fruit weighs 10 grams, and the pulp is tight. The sugar content is 30% for fresh jujube and 85.3% for dried jujube. The fruit is small and sweet, and the kernel is larger. Dry the improved seed. It belongs to the high quality ones with strong adaptability among the old varieties. The mature period is in the middle and late September. Suitable for planting in Henan, northern Jiangsu, western Zhejiang and so on.
2019-01-16 -
Hongpi pear rookie-- Hongxiang crisp
Hongxiang Cake was bred by Zhengzhou Fruit Tree Institute of Chinese Academy of Agricultural Sciences in 1980 with Korla fragrant pear and Zhengzhou goose pear. In 1986, it was selected as a superior line, codenamed 80mur4Mel 6. In October 1997, it passed the crop variety examination and approval in Henan Province, and named it "Hongxiang Crisp". It overcomes the shortcomings of Korla fragrant pear, such as small size and low sweetness, and becomes the leader of today's red pear. In the spring of 1994, some branches were introduced by Zhengzhou fruit trees, and 11-year-old Yali pears were grafted and replaced in batches.
2019-01-16 -
Performance and cultivation points of High grafting introduction of Hongnanguo Pear
Hongnanguo pear is a bud mutation of Nanguo pear which was identified in Shenyang Agricultural University in 1996. In 2003, 5000 seed strips were introduced from Fushun specialty science research institute in Luanxian county for high grafting trial planting. It performed well in Luanxian County, yielding 300kg per 667m2 in the second year with an income of 4200 yuan, 800kg per 667m2 in 2005 with an income of 8000 yuan, and reaching 1500kg in 2006 with an income of 12000 yuan, with remarkable economic benefits. The main results are as follows: 1 the basic situation of the high connection experimental park is located in Luanxian County, Hebei Province.
2019-01-16 -
An excellent New Variety-- Mingzhu Pear
After several years of trial planting, this variety was introduced into Donggang, and its growth and fruiting habits and stress resistance were adapted to Donggang area. The fruit is moderate, bright in appearance, excellent in quality and high in yield. First, botanical characteristics. The annual branch is gray-white, slightly gray-white tomentose on the top, the branch is slightly curved, the lenticels are less, the trunk and perennial branches are grayish reddish brown, the epidermis is smooth, and the leaves are oblong and thick. Second, growth and fruiting habits. The tree has the advantages of erect posture, strong growth potential, high germination rate, strong branching ability, more axillary flower buds, faster flower formation, high self-flowering seed setting rate and high yield.
2019-01-16 -
When is the right time to harvest jujube fruit
The ripening period of jujube fruit can be divided into three stages: White ripening stage, fragile ripening stage and full ripening stage. The harvest time of jujube fruit depends on the use of jujube fruit. The main results are as follows: (1) in the white ripening stage, the pericarp green fades, showing green-white or milky white. The fruit has soft flesh, less fruit juice and low sugar content. When used for processing jujube, it should be harvested in the white ripe period. (2) during the brittle ripening stage, from the stem depression, the fruit shoulder turned red to the full red fruit, the texture became crisp, the juice increased and the sugar content increased sharply. Jujube used for fresh food and processing should be harvested during this period. (3) pericarp of mature stage
2019-01-16 -
Peach variety Qin Guan
Shaanxi Fruit Tree Research Institute Yuan Wuzhou et al., parent capital crown × chicken crown. It was hybridized in 1957, selected in 1966 and named in 1970. He participated in the regional trial of Big Apple and won the second prize of the National Invention Award in 1988. It is widely distributed in China and cultivated more in Northwest China. The fruit is conical and weighs about 200 Mel 250 grams. The background is yellow and green, with dark red halos and intermittent red stripes on the sunny side, often with white stripes. When fully matured in the higher altitude areas of the northwest, it can achieve overall dark red, in the sea.
2019-01-16 -
Early prevention of red star disease does not have furuncle in pear fruit.
Pear fruit furuncle disease, known as red star disease, also known as pear rust, pear red rust, or pear juniper rust. The disease was parasitized on juniper (including juniper and dragon juniper) trees in the form of mycelium in September before the defoliation of pear trees. As long as juniper trees are planted, red spot disease may occur in pear orchards every year. After the leaf is infected, there are orange oil droplet-like spots on the surface, which gradually develop into a near-circular spot with a diameter of 4-8 mm, and a small orange spot appears in the middle, which gradually turns black, and the spot is reddish brown around the spot, sunken on the front and back.
2019-01-16 -
Pest control methods of pear aphid
This insect, referred to as pear aphid, is the main pest of pear tree, which is distributed in all pear areas. After the damage of pear trees, a large number of leaves curled, resulting in early defoliation, tree potential decline, fruit development was blocked, seriously affecting the yield and quality. [occurrence regularity] it occurs for more than 10 generations a year. The overwintering eggs usually hatch in March and late March when the pear buds expand and burst. The young aphids continue to give birth to new young aphids after growing, and the winged aphids begin to produce in late April. In May, a large number of winged aphids form and migrate to weeds to breed. The winged aphid moved back to the pear tree in October
2019-01-16 -
Introduction of pear varieties suitable for processing
BA pear is a world-famous variety for both raw food and canning. In addition to Ba pear, there are Guifei pear, Jinxiang pear and dwarf fragrant pear. (1) Guifei pear: native to the United States, it is a natural seedling of pear. There is a small amount of cultivation in Liaoning Province. The outstanding advantages of this variety are extremely high yield, disease resistance, insect resistance, heat resistance and wide adaptability. Fresh food is of poor quality and is mainly used for canning and cooking in the United States. The fruit is medium-large, weighing about 150-200 grams, short spindle-shaped. Fruiting pedicel thick and straight, 3-7 cm long, base often inflated into fleshy
2019-01-16 -
Experiment on delayed cultivation techniques of red snow peach in plastic greenhouse
Red snow peach is a very late-maturing peach variety, in our county open field cultivation by late autumn rainfall and frost, fruit is not easy to mature. Therefore, since 2001, we have carried out the experiment of delayed cultivation in plastic shed by adopting the technical measures of promoting before and controlling later, delaying flowering, bagging to prevent rain and closing shed to adjust temperature, prevent frost and protect leaves. The results showed that the fruit ripening could be delayed about 20 days after planting in the second year, and the fruit ripening rate and high quality fruit rate were obviously improved.
2019-01-16 -
Problems needing attention in efficient cultivation of Kernel Apricot
Kernel apricot is one of the main dried fruits in northern China, and its management benefit is quite good. in recent years, due to the development of almond, the comparative benefit of kernel apricot has been reduced. in order to improve the production benefit of kernel apricot, comprehensive measures should be adopted. 1) develop in a suitable place. Kernel apricot is resistant to drought, barren and wide adaptability, but in order to carry out efficient production, it is necessary to choose places with deep soil layer, fertile soil and leeward to the sun to build a garden. As kernel apricot blossoms early and is vulnerable to late frost, it is necessary to avoid building gardens in ridges, tuyere and low-lying places. 2) pay attention to the configuration of pollination trees.
2019-01-16 -
Peach variety: Ruiguang 3
Beijing Academy of Agricultural and Forestry Sciences was bred by crossing Jingyu × NJN76. The original codename 81Mel 25Mel 10 was selected in 1986 and was approved and named in 1997. The fruit is nearly round, the fruit shape is positive, and the top of the fruit is flat; the average weight of a single fruit is 145 grams, and the maximum fruit weight is 235 grams; the peel is green and white, 75% of the fruit surface is covered with redness, and does not leave the peel; the flesh is white, with a small amount of red pigment, juicy, sweet flavor and light flavor; soluble solids 11.5%. Semi-detached nucleus. The tree is strong.
2019-01-16 -
Life habits and control methods of jujube bud weevil
Jujube bud weevil belongs to Coleoptera, family Cerambycidae. Occurred in Henan, Hebei, Shanxi, Liaoning and other jujube famous owners for harmful jujube, apple, pear and other fruit trees. Jujube bud weevil unearthed in early spring, the first harm to the tender buds of Zaozhuang, is the earliest pest on Zaozhuang trees, when the insect population density is high, it can eat up jujube leaves, resulting in secondary sprouting, resulting in reduced yield or no harvest. The adult is dark gray or khaki, the head is black, the two sheath wings are curved, the length is twice as wide and the ventral side is silver-gray. Egg milky white, later brown, long oval
2019-01-16 -
Processing technology of honey jujube
Honey jujube is a dry candied fruit made from fresh jujube. Lianzhou jujube and Guangxi Wuzhou honey are more famous. The processing technology is as follows: 1. Raw material selection: it is generally appropriate to choose a large one and a small core. A variety with loose meat, thin and tough skin and less juice. The fruit maturity is best when the green begins to fade and the fruit is milky white. 2. Grading: the jujube is graded according to the size of the jujube fruit to remove the abnormal jujube diseases and insects, overripe and damaged jujube. 3. Slit: in order to facilitate sugar penetration and compression molding, usually slit on the fruit surface
2019-01-16 -
Red golden awn (jujube)
According to Xinhua News Agency, Henan Forestry Science Research Institute selected and bred Hongjimangdong jujube, which represents the highest level of winter jujube in China, on the basis of extensive collection of domestic late-maturing jujube resources. According to the person in charge of the Agricultural Forestry Office of Henan Forestry Institute, the winter dates popularized in domestic production are Zaozhuang winter jujube, Chengwu winter jujube, Daxue jujube, Zhanhua winter jujube, and so on. The quality of some of these winter jujube varieties is too poor, the pulp cork is serious, some varieties bear fruit late, and the yield is also slightly poor. The red selected by Henan Province this time
2019-01-16 -
Pay close attention to the Postharvest Management of Peach
Pruning promotes the growth of balanced peach trees many times a year, which is easy to make the crown airtight, poor ventilation and light transmission, and affect the formation of flower buds. Therefore, after peach harvest, the cross branches, overlapping branches, disease and insect branches and overgrown branches in the crown should be removed, and the bald and empty parts should be cut around to promote new branches, occupy space and increase the yield of the following year. Clearing the garden thoroughly combined with plastic surgery and pruning, cleaning the peach orchard, removing the sparse branches out of the garden, and spraying 6000 times of Jinlux, 12000 times of Guolong, and amino acid 3.
2019-01-16 -
Tancheng apricot plum
It originated in Tancheng County, Shandong Province. The fruit is nearly round, the average weight of single fruit is 48.8g, and the maximum weight of fruit is 73.7g. The top of the fruit is flat or slightly pointed, the suture is shallow, both sides are asymmetrical, and the stem depression is wide and deep. The fruit is orange in background, orange in color when ripe, fluffy and thick in peel. Orange flesh, dense meat, fine, juicy, sweet and sour palatable, apricot flavor, quality. The content of soluble solids is 13.3%, the content of total sugar is 6.7%, and the content of titratable acid is 1.7%.
2019-01-16 -
peach sweet juice
Process flow Raw material selection → cleaning → cutting in half, coring → soaking → heating and beating → sugar and acid adjustment → homogenization → sterilization → canning → sealing → cooling Production method 1. Raw material selection: select ripe peaches. If the raw material maturity is low, it needs to be placed for a few days for post-ripening. Remove pests damage fruit, immature fruit and bad color fruit. 2. Cleaning: first clean skin dirt with clean water, because peaches have hair, it is best to brush, and then rinse into 1% salt water to remove pesticide residues. 3. Cut it in half.
2019-01-16 -
The Prospect of Development and Utilization of Gezao Resources
China is rich in kiwifruit resources and has a long history of cultivation, but it is mainly concentrated in the south. There are mainly three kinds of kiwifruit produced in Northeast China: ActinidiaPolyganaPlanch, A.argutaPlanch and A.kolomiktaMaxim. From the current reproduction, cultivation and utilization of kiwifruit in Northeast China, there is a lack of related research. Soft jujube and Gouzao kiwifruit have been introduced and planted sporadically in China, but there is no successful experience.
2019-01-16