Black sesame seeds are black seeds of sesame seeds, containing a lot of fat and protein. They also contain nutrients such as sugar, vitamin A, vitamin E, lecithin, calcium, iron and chromium. They have stomach, liver and promote red blood cell growth. The role of at the same time can increase the body's melanin, which is conducive to hair growth, let's take a look at the distribution of black sesame production! The distribution of black sesame seeds is widely cultivated in China. The main producing areas are Shandong, Henan, Hubei, Sichuan, Anhui, Jiangxi, Hebei and other provinces. They are annual herbaceous plants. The mature seeds are black and white, and black is more medicinal. The white is more edible, the names of the localities are slightly different, and there are various titles such as sesame, linseed, giant win, and flax. Black sesame production environment 1. Soil: Black sesame seeds are planted in loose soil with slight acidity to neutrality (pH 6.5-7.5) due to their small seeds and shallow roots. Loose soil can coordinate the contradiction between water, fertilizer and air. The extension of the roots. 2, temperature: black sesame seeds in the whole growth period need to accumulate temperature 2500 ~ 3000 ° C, the development of the average temperature of day and night 20 ~ 24 ° C is most suitable. 3. Precipitation: The suitable rainfall during the whole growth period of black sesame is 210-250 mm. 4, sunshine: black sesame seeds need sufficient sunshine during the whole growth period, sufficient sunlight can enhance photosynthesis, help the accumulation of nutrients, meet the needs of flowering and fruiting, so that the fruit is full, which is conducive to the formation of oil. Black sesame true and false identification 1. Identification of traits: This product has a flat oval shape, 2.5 to 4 mm in length and 1.5 to 2 mm in width. One end is obtuse, the other end is tipped, the thickness is about 1 mm, the surface is black, there are net wrinkles or not obvious, and the mirror is enlarged. Small ridges can be seen underneath, the edges are smooth or have 2 raised ridges, and the tip has a rounded brown umbilical cord, which is membranous. The endosperm is white, fleshy, and is wrapped in a thin layer outside the embryo. The embryo is straight, with two large white cotyledons, oily. The gas is weak, the taste is light, and there is sesame oil after crushing. 2, microscopic identification: the cross-section of the seed: the outer part of the seed coat is a column of cylindrical cells arranged in a grid, the outer wall is slightly convex outward, the cell is filled with melanin, and contains a large spherical oxalic acid. The calcium crystal group is composed of a large number of small columnar crystals. It is a row of flat cells inward, the wall is thin, and the small columnar crystals are usually dispersed in the cell cavity. Then, several layers of decadent crushed endosperm cells are visible inward. The endosperm is 3 to 4 layers of parenchyma cells, polygonal. The cotyledons are double-sided, with cylindrical cells under the upper epidermis. Both the endosperm and the embryo are filled with starch granules and fatty oil. 3, powder identification: black gray, oily, with aroma. The surface of the outer seed cell is polygonal, the cell is filled with melanin, and contains a large spherical calcium oxalate crystal group with a diameter of 25 to 48 microns. Cotyledons and endosperm cells are round and contain a large amount of aleurone. The free aleurone is oval in shape, 3 to 7 microns long, and contains a spherical crystal and a square or polygonal pseudocrystal. Fat oil drops scattered. This article URL: Where is the distribution of black sesame seeds? How to grow high-yield black sesame seeds? Fiberglass safety helmet Fire Safety Helmet,Work Safety Helmet,Fiberglass Safety Helmet,Construction Safety Helmets Shandong Binzhou Yong'an Labor Protection Factory , https://www.zhuqiangsafetybelt.com