Identification of ginkgo male and female plants early

1. Morphological identification method 1 Look at the angle between the trunk and the main branch: The main branch of the male plant stands upright, the branch angle is about 30 degrees, and the main branch of the female plant branch is sag and flat, and the included angle is about 50 degrees. 2 Look at the leaves: Male plants are deciduous; female plants fall early. 3 Look at the leaf shape: The leaves of female plants are shallow and the male plants are the opposite. 4 Look at the canopy form: The male canopy is formed later, the branches are fewer and weaker, and the level is clear; the canopy of female plants is formed early, with many branches and thick, and the levels are more messy. 5 Look at the length of branches: Male branches are short, usually only 1-2 centimeters; female strains have been extended for many years and the length is about 10 centimeters. 6 Look at the flower buds: The male plants have large, full, and slightly flat flower buds on the top; the female plants have thin, pointed buds. 7 Look at the inflorescence: Male inflorescences are catkins, like mulberry inflorescences; males are long, with forks on top of pedicels, such as matchsticks. 8 Look at the thickness of stems: Male stems are taller and weaker; females are shorter and stronger. 2, bromothymol blue identification method Weigh each sample leaf 1 g, cut into shredded cigarette-like, placed in a clean test tube or conical flask and other containers, add 0.1% bromothymol blue solution 5 ml, in 22- Observe the length of time required for color change at 26°C. If it is a male strain, the solution is dark green after 2-3 minutes, green after 4-6 minutes, yellow-green after 9-10 minutes, and yellow-orange when it is about 20 minutes; if it is a female plant, it is blue-green. It takes about 2-6 hours until the yellow-orange color changes. Ginkgo male trees have stronger respiration than female trees, and their catabolism is more prosperous. They can quickly promote the decomposition of substances in the leaf juice to organic acids, making them more acidic. The blue-green bromothymol blue solution, which is alkaline, will turn yellow when it is acid. Therefore, when the bromothymol blue solution is added, if it is a male plant, it rapidly turns yellow; if it is a female plant, the rate of changing from blue to yellow orange is slow. Morphological identification method is simple and convenient, but it has strong experience and lack of reliability. If the morphological identification method is combined with the bromothymol blue identification method, it is a simple and effective method for early identification of ginkgo genitals, which has a high application value. China Agricultural Network Editor

2-Piece Ostomy pouch MDK-BO-02 800ML

1-Piece Ostomy Pouch

A one-piece colostomy bags, drainable pouching system designed to be opened at the bottom when emptying. These colostomy bag machine are most suitable for colostomies or ileostomies. Ostomy bag colostomy barrier is a standard wear skin barrier that is gentle to the skin and allows for frequent pouch removal. To close the pouch, use the curved, beige clamp. Soft, beige disposable colostomy bag pouch panels on body side help provide comfort.

The features are soft and flex,standard wear, skin barrier, flat. The Chassis made in 100% hydrocolloid No tape border. Cut-to-fit skin barrier. Ultra-clear odor-barrier pouch film. Curved, beige pouch clamp. With comfortable ware pouch panel body side only. Not made with natural rubber latex.

Ostomy urostomy colostomy bag care products consist of sodium carboxymethylcellulose, adhesives made from medical hot melt adhesives, and separator paper or separators. Nursing equipment for ileum, colon, rectum or urethral stoma,The coloplast colostomy bag comes into contact with intact skin and intestinal lumen,Non-sterile supply. Colostomy bag reusable for stoma washing, care and collection of excreta and skin care around the stoma.

Use disposable colostomy bag, make sure the skin around the stoma is clean and dry before use. Remove the bags for colostomi from the package and separator or paper. Reshape the coloplast colostomy bag into the desired shape and size to fit the skin around the stoma. Apply the colostomy convatec bag to the skin around the stoma,adjust the shape of the paste again,Gently press so that it is firmly flat on the skin. Attach the stoma colostomy bag undercarriage to the stoma. The colostomy bag care can be peeled off the skin, don`t reuse. These one-piece-colostomy bag or two-piece-colostomy-bag are non-sterile product and is valid for three years under the condition of meeting the storage conditions.

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