A method for introducing and screening ornamental grasses in coastal saline-alkaline areas
A technology of ornamental grasses and saline-alkali, applied in botany equipment and methods, horticulture, plant cultivation, etc., to achieve the effects of comprehensive evaluation indicators, shortened screening cycle, and short evaluation cycle
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[0022] A rapid and comprehensive screening method for the introduction and screening of ornamental grasses suitable for coastal saline-alkaline areas, comprising the following steps: taking salt tolerance, negative tolerance, drought tolerance, and waterlogging tolerance as evaluation indicators, and using gray correlation analysis to evaluate ornamental grasses;
[0023] For the salt tolerance experiment, take out the root of the ornamental grass, wash the root soil, and place it in a container with half a dose of Hoagland nutrient solution for complete hydroponics. After three days, replace the culture solution with a concentration of 0.2%, 0.4%, 0.6%, 0.8%, 1.0%, 1.2% double salt solution, the double salt solution is NaCl, Na 2 SO 4 and NaHCO 3 Prepared with distilled water at a molar ratio of 1:1:3, the concentration is the mass concentration, and the lethal salt concentration is recorded after 14 days; the lethal salt concentration is 0.2%, 0.4%, 0.6%, 0.8%, 1.0%, 1.2%, ...
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