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How to Prevent and Control Penicillium Mold in Oyster Mushrooms? A Detailed Guide to Practical Techniques
Penicillium Penicillium is a common contaminant mold on oyster mushroom spawn-production and cultivation beds, and occasionally has a weak parasitic effect on fruiting bodies; its asexual stage belongs to the Deuteromycotina, genus Penicillium. (1) Pathogen characteristics: Penicillium hyphae are colorless, septate; the colony is initially white, with most of it penetrating deep into the substrate and few aerial hyphae, appearing as a felt-like or cottony mass; the conidiophores branch in a broom-like pattern at the tips, and when conidia accumulate in large numbers they form a blue-green, yellow-green or blue-green powdery mold layer. (2) Damage symptoms: Penicillium occurs
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Detailed Explanation of the Wall Soil-Covering Cultivation Technique for Oyster Mushrooms
After oyster mushrooms produce three flushes, water and nutrients are heavily depleted, and yield drops sharply. With full soil-covering cultivation, not only do the mushrooms get covered in a lot of soil, but the mushroom quality is also brittle and the selling price is low. With the wall soil-covering method, oyster mushrooms not only increase in yield but are also good in quality and do not get covered in soil. The specific method is as follows. 1. Making the mushroom wall. Take the mushroom logs after the second and third flushes have been harvested, use a knife to cut one end of the mushroom bag into a 10 cm long bag tube, and slip it over the other end of the mushroom stick, arranging 2 sticks per row. Place the end with film on the outside, and in the middle of the two mushroom tubes the first layer is spaced 30
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Analysis of the Causes of Meteorological Diseases in Oyster Mushroom Cultivation and Prevention Countermeasures
Years of oyster mushroom cultivation practice has proven that abnormal weather changes in spring, with temperatures suddenly rising or dropping sharply, can cause the same meteorological diseases in oyster mushrooms within the same climatic zone. If poorly managed, oyster mushroom fruiting bodies will wilt and die in large numbers within 1-7d, resulting in heavy losses. Therefore, studying meteorological diseases of edible fungi, utilizing weather forecast results, and formulating effective preventive measures have very important practical significance for reducing losses of edible fungi and improving the economic benefits of mushroom cultivation. 1 Typical Cases and Analysis 1.1 Typical Cases Case 1: 1
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Characteristics of the oyster mushroom variety Brown Top 81
In the late stage of mycelial colonization of this variety, a mycelial film does not readily form on the surface of the substrate, so fruiting proceeds smoothly; primordia are sparse, the rate of mushrooms reaching maturity is high, and large clusters of mushrooms readily form; once mushroom buds appear they are already in clusters of black nodular bodies, and up to maturity the main change is the enlargement of the caps, with no visible marked elongation of the stipes; the fruiting bodies are plump and stocky, spreading horizontally, with the caps of young fruiting bodies black and those of mature ones dark brown or brownish; it also fruits normally when cultivated in poorly ventilated air-raid-shelter tunnels. The stipes are short or essentially absent, and the caps account for a large proportion, making it very suitable for processing into canned products.
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Introduction to the main characteristics of the Himematsutake variety of oyster mushroom
An early-maturing Himematsutake introduced from Japan, with high yield and good quality, a yield per unit area of 11.93-14.07 kg/sq m, and a biological efficiency of 95.4%. The optimum humidity for mycelial growth is 24-28°C. The mycelium is pure white and short-fuzzy. The fruiting body formation temperature is 5-25°C, with no summer-over period, and the optimum temperature is 18-22°C; it belongs to the medium-temperature type of oyster mushroom species. The fruiting bodies grow in clusters, imbricate, with shell-shaped caps and smooth margins, grayish black when young and brown when mature. The flesh is white and fine. The stipe is white and lateral. The spore print is pink.
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What are the characteristics of the oyster mushroom variety P-25?
A new oyster mushroom strain suitable for growing on wheat straw. The mycelium growth temperature is 4-38°C, with an optimum temperature of 18-25°C. The primordium differentiation temperature is 8-24°C, with an optimum temperature of 10-22°C. The fruiting bodies grow in clusters, the stipe diameter is 1.5-3.5 cm, and the length is 2-4 cm. The cap diameter is 5-18 cm, the thickness is 1-2.5 cm, and it is white. It has strong contamination resistance and wide adaptability, and can grow on culture substrates made from various kinds of straw. The biological efficiency can reach 100%.
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Pleurotus ostreatus cultivar F: A Detailed Introduction to Pleurotus ostreatus
It takes on a trumpet shape. The color is white and tender, the fruiting body is medium-sized, and the cap is rather thin. It has strong adaptability and tolerance to changes in environmental conditions. The optimum temperature during the mycelial growth stage is 25-28°C. The optimum temperature during the fruiting body formation and growth stage is 18-22°C. During the mycelial growth stage, the moisture content of the substrate should be around 65%, and the relative air humidity 70-80%; during the fruiting body growth stage, the moisture content of the substrate should be around 70%, and the relative air humidity 85-95%.
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What are the characteristics of the oyster mushroom variety Zhongshu No. 10?
This variety has strong vitality, wide adaptability, uniform fruiting, fast flush turnaround, and high yield. When cultivated in a sunken bed, the first flush yield is 5.8 kg per sq m. The mycelium grows quickly, is snow-white, dense, and thick, and has strong resistance to contaminating microorganisms. The optimum growth temperature is 24-28°C. The optimum temperature for fruiting body formation is 18-22°C. The cap is shell-shaped, the pale brown stipe is laterally inserted, round, and white.
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Detailed introduction to the oyster mushroom variety Ningza No. 1
After this variety is spawned, the spawn blocks germinate rapidly, vigorously, and thickly, and colonize the substrate quickly. The mycelium is highly heat-resistant; exposure to a temperature of 30°C has no effect on the mycelium. The entire mycelial growth period is short, only 17 days. The young fruiting bodies form in clusters, with dense numbers of caps and few dead mushrooms; fruiting is uniform across the entire bed, and the flushes are distinctly separated, with the first and second flushes yielding relatively high production. During the growth stage, water management by misting is best, and during the maturation stage, light misting is preferable.
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Introduction to the Pleurotus ostreatus 5.39 strain variety
Introduced from Bulgaria, with stable yields and a biological efficiency of 90%. The mycelium grows at 3-35°C, with an optimum of 23-26°C; the mycelium is downy, white, with orange-yellow pigment. The fruiting bodies grow at 5-22°C, with an optimum of 14-18°C. The fruiting bodies grow in clusters, imbricate, grayish-blue when young and grayish-white when mature. The flesh is white, the caps are mostly shell-shaped, and the stipes are white and lateral. The spore print is light pink. The peak fruiting period of this strain is concentrated from late May to mid-June. To obtain more flushes, sunken-bed cultivation must be sown in early to mid-April, and greenhouse cultivation in mid to late March.
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