Dwarfing breeding (breeding for dwarfness)
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Last Update: 2021-03-14
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Source: Internet
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Author: User
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the main target of selecting crop varieties of dwarf or semi-dwarf straw. By dwarfing breeding, reducing the height of the plant, not only make the crop resistant to fertilizer, but also change the plant type, can improve the harvest index, so-called plant dwarfing is by shortening the length of the between sections, or reduce the number of sections, thereby reducing the overall height of the plant.dwarf breeding began in the 20th century, but large-scale production took place in the late 1940s, after World War II, when fertilizer use soared and the contradiction between yield and downs becoming acute. Many local varieties of wheat in China are planted up to 110 to 120 cm under high fertility conditions. The average plant height of the varieties used in production is reduced to about 80 to 100 cm.
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