What causes watermelon hollow?

Insufficient water supply during the expansion period is the period when the watermelon needs the most water in a lifetime, and it is also the period most sensitive to water shortage. During this period, there is drought and water shortage. The pulp cells will be formed due to insufficient water supply and the expansion rate will be slower than the peel. Hollow. The low temperature in the result period caused the longitudinal growth rate of the melon to slow, while the lateral growth rate accelerated, and the growth rate of the melon mushroom could not keep up with the fruit's inflating rate. Poor plant growth During the rapid expansion of the fruit, if the plant suffers from premature senescence due to lack of water, lack of fertilizer, or disease and insect pests, it can also be hollow due to malnutrition. If the fruits are harvested too late, the fruit harvesting will not be timely, and hollowness will occur due to the breakdown and disintegration of the melon pod tissue. Grafting affects the general grafted watermelon more prone to skin thickness and hollow.

Dyestuff is an organic compound which can make other substances get bright and firm color. It is mainly used for textile fibers, and can also be used for leather, paper, polymer materials or food. (1) According to the application objects, the application methods and properties of dyes can be divided into acid dyes, neutral dyes, reactive dyes, disperse dyes, cationic dyes, direct dyes, ice dyes, vat dyes and sulfur dyes. (2) According to the chemical structure of the dyes, they can be divided into azo dyes, anthraquinone dyes, phthalocyanine dyes, carbon ion dyes, nitro and nitroso dyes, styrene dyes and so on.

Pigments are insoluble in water and insoluble in various media. Mainly used for ink, paint, rubber products, plastic products, cultural and educational supplies and building materials coloring, but also for synthetic fiber paste coloring and fabric pigment printing. Pigments can be divided into two categories: inorganic pigments and organic pigments. According to the chemical structure, inorganic pigments can be divided into iron pigments, chromium pigments, aluminum pigments, zinc pigments, metal pigments, phosphate pigments, molybdate pigments and so on. (2) Organic pigments can be divided into azo dyes, phthalocyanine pigments, reducing pigments and other polycyclic pigments.

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Dyestuffs And Pigments

Quinoline Yellow,Sulphur Black,12-Phthaloperinone 98%

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