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Control Methods and Technical Key Points for Physiological Diseases of Button Mushrooms
Button mushrooms are relatively sensitive to their environment. A poor cultivation environment will hinder their normal growth and development, produce various abnormal phenomena, and lead to reduced yield and lower quality. Common physiological diseases of button mushrooms include excessive mycelial growth, hard opening of the caps, thin-skinned early opening, and the appearance of soil-level mushrooms and hollow-stemmed white-core mushrooms. They are described below: Symptoms of excessive mycelial growth: after the mushroom bed is cased and watered, the fluffy mycelium of the button mushroom will continuously grow toward the surface of the fine soil. In severe cases, it will form a fine, water-impermeable mycelial mat, thereby delaying the time of fruiting and reducing the mushroom
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How to prevent and control non-physiological diseases of mushrooms?
(1) Deformed mushrooms Deformed mushrooms are mostly induced by temperature differences or unfavorable environments; they may also be related to the strain used. Deformities mainly include the following types: 1. Hollow stipe. Mushrooms on the bed look normal, but when the base is cut off, part of the stipe is found to be hollow, usually with a ring-shaped cavity around a hard core. Afterwards, the cut surface of the stipe may crack and then curl backward, causing the mushrooms to lose their appealing appearance and decline in quality. This is mainly caused by low air humidity during the fruiting period, rapid evaporation of water from the mushroom bodies, excessively dry casing soil, and the fruiting bodies being unable to obtain water.
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Physiological Disorders of Mushrooms and Their Control Methods
Mushrooms are relatively sensitive to their environment. A poor cultivation environment will hinder their normal growth and development, produce various abnormal phenomena, and lead to reduced yields and lower quality. Common physiological disorders of mushrooms include excessive mycelial growth, hard opening of the caps, thin-skinned early opening, and the appearance of ground-button mushrooms and hollow-stem white-core mushrooms. They are described below: Symptoms of excessive mycelial growth: after the casing soil of the mushroom bed is watered, the fluffy mycelium of the mushroom will continuously grow toward the surface of the fine soil, and in severe cases will form a fine, dense, water-impermeable mycelial mat, thereby delaying the time of fruiting and reducing the
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What are the control methods for physiological diseases of mushrooms?
Hard opening of the cap: When mushrooms encounter abnormal weather, the phenomenon of young fruiting bodies opening their caps prematurely is called hard opening of the cap. It generally occurs at temperatures above 18°C, with a temperature difference of about 10°C, or under sudden temperature drops. Insulation work should be done well before sudden temperature changes, and the relative air humidity in the mushroom house should be increased. Malformed mushrooms: The causes of formation are uneven thickness of the casing soil, low fruiting position, and carbon dioxide content in the mushroom house exceeding 0.3%; or they are caused by pesticide damage, diseases, and insect pests. Attention should be paid to the quality of the casing soil and ventilation, preventing harmful gases from entering the mushroom house; attention should be paid to prevention
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Detailed Explanation of the Reproductive Organs and Physiological Characteristics of the Female Fox
The reproductive organs of the female fox consist of the ovaries, fallopian tubes, uterus, vagina, and external genital organs. The external genital organs include the vestibule of the vagina, labia, and clitoris. The ovaries of the female fox are located at the third and fourth lumbar vertebrae, at the posterior margin of the kidneys. The left ovary is positioned more anteriorly than the right ovary. The ovaries are flat in shape and grayish-red; during estrus, the ovary is 2 cm long and 1.5 cm wide; the fallopian tubes are 5-7 cm long. The ovaries and fallopian tubes are covered by adipose tissue. The uterus is a bicornuate uterus, with the uterine horns and uterine body suspended by the broad ligament of the uterus on the lower lateral walls of the pelvis. The uterine horns are 10-13 cm long, the uterine body is 4-6 cm long, and the cervix protrudes into the vagina. The vagina is 6-8 cm long, with its anterior end connected to the cervix and its posterior part adjoining the urogenital vestibule. The vestibule has two relatively well-developed protrusions, mating. During mating, the vestibule is stimulated and contracts violently, the two lateral protrusions swell, and together with the bulbous body of the male fox's penis, this results in a copulatory tie. The vulva of the female fox, together with the bulbous body of the male fox's penis, results in a copulatory lock. The vulva of the female fox is round on top and pointed at the bottom; outside the breeding season it is covered by pubic hair and not visible; during the breeding season it shows morphological changes.
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Identification and Prevention of Physiological Disorders in Atlantic Potato Tubers
The Atlantic potato is a high-quality raw material for processing snack foods such as potato chips and French fries. Its growth period is relatively short, and it has strict requirements for the cultivation environment: it needs cool conditions but is not tolerant of low temperatures. During cultivation, freeze protection and fertilizer and water management should be done well to avoid physiological disorders such as black heart, hollow heart, starch leakage, cracking, and deformities, and to improve tuber quality and marketable yield. I. Tuber black heart 1. Symptoms: Irregular patterns ranging from black to blue appear in the center of the tuber. When oxygen deficiency is severe, the entire tuber may turn black. Usu
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Detailed Explanation of the Reproductive Organs and Physiological Characteristics of the Female Fox
The reproductive organs of the female fox consist of the ovaries, oviducts, uterus, vagina, and external reproductive organs (vulva). The external reproductive organs include the vestibule, labia, and clitoris. The ovaries of the female fox are located at the third and fourth lumbar vertebrae, grayish-red; during estrus, the ovaries measure 2 cm in length and 1.5 cm in width; the oviducts are 5-7 cm long. The ovaries and oviducts are covered by adipose tissue. The cervix protrudes into the vagina. The vagina is 6-8 cm long, with its front end connected to the cervix and its rear portion adjoining the urogenital vestibule. The vestibule has two relatively well-developed protrusions; during mating, the vestibule is stimulated and contracts violently, the two protrusions swell, and together with the bulbous body of the male fox's penis, a copulatory tie (lock) occurs. The vulva of the female fox is round on top and pointed at the bottom, covered by pubic hair and not visible during the non-breeding season; during the breeding season (i.e., estrus), it undergoes obvious morphological changes.
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Identification of Physiological Disorder Symptoms in Lilies and Their Prevention and Control Methods
Physiological disorders, also known as non-infectious diseases, refer to the disruption of normal physiological metabolic functions in the plant itself caused by factors other than pathogens. The causes of physiological disorders may be internal factors such as mineral element deficiency, tissue aging, or environmental factors such as temperature, light intensity, and abnormal gas composition. I. Leaf scorch: The typical symptom of leaf scorch is the formation of semicircular necrosis at the tip and margin of the leaf, sometimes also manifested as chlorosis or necrosis at the leaf margin, or yellow-green spots appearing on parts of unexpanded or expanded young leaves
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What are the digestive physiological characteristics of donkeys? Read this article to understand
Digestive physiological characteristics of donkeys: Donkeys have hard, well-developed teeth and flexible upper and lower lips, suitable for chewing coarse and hard feed. Donkeys have well-developed salivary glands; every 1 kg of forage can be softened and digested by 4 times its amount in saliva. The donkey's stomach is small, only equivalent to one-fifteenth that of a cow of the same size. The cardiac sphincter of the donkey's stomach is well-developed, while the vomiting nerve is underdeveloped, so it is not easy to feed feed that ferments and produces gas, to avoid gastric dilation. Chyme stays in the stomach for a short time; when the chyme in the donkey's stomach reaches two-thirds, as feeding continues, the stomach contents are continuously
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Control Methods and Technical Key Points for Physiological Diseases of Oyster Mushrooms
Oyster mushrooms have the characteristics of wide adaptability, strong stress resistance, a wide range of cultivation material sources, simple cultivation techniques, and high economic benefits. In recent years, oyster mushroom production has developed rapidly in our county, but in production, various non-infectious physiological diseases often occur due to poor management, causing yield reductions and directly affecting the economic benefits of oyster mushroom production. Based on many years of production practice experience, we have summarized the symptoms and control techniques of several main physiological diseases that commonly occur in oyster mushroom production. 1. Excessive mycelial growth In oyster mushroom production, excessive mycelial growth often causes the mycelium to become dense
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