Pteris vittata spore germination and intensive seedling culture method

Abstract

The invention provides a pteris vittata spore germination and intensive seedling culture method. The method comprises the following steps: (1) placing pteris vittata spore powder in a spore germination culture solution, and culturing under a dark condition until the spore is germinated and rooted; (2) uniformly planting the germinated and rooted spore treated by the step (1) in a seedling culturematrix, culturing until the pteris vittata leaves grow; (3) after the step (2), fertilizing at an appropriate time, performing the necessary field management, culturing for 4 to 5 months, and then transplanting into the field. The seedling culture method is simple in operation, shortens the seedling culture period, overcomes the weaknesses in the prior art, facilitates the mass and intensive seedling culture of the ultra-accumulation plant pteris vittata, and can provide a great amount of high-quality low-price ultra-accumulation plant pteris vittata seedlings to restore the arsenic pollutionof the soil in farmland.

Description

technical field [0001] The invention belongs to the technique of inducing fern spore germination and raising seedlings, and relates to a method for the germination and intensive seedling raising of centipede spores. Background technique [0002] Centipede grass spores are small, it is difficult to control the number of sowing, and high-density sowing of spore powder is easy to cause seedling failure due to mold infection. [0003] Previously, there were some reports on the methods of breeding centipede grass, but the results were not good. Some researchers have made related attempts by using tissue culture methods, such as Chinese patent CN200510086732.8, but these methods are relatively complicated and difficult to apply in practice. [0004] The Institute of Geographical Sciences and Natural Resources Research of the Chinese Academy of Sciences announced a method for industrialized seedling cultivation of centipede grass in its Chinese patent CN201510937385.9, but this me...

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Problems solved by technology

[0002]The spores of Centipede Grass are small, it is difficult to control the number of sowing, and the high-density sowing of spore powder is likely to cause seedling failure due to mold infection

[0003] Previously, there were some reports on the breeding methods of centipede grass, but the results were not good

Some researchers have made related attempts by using tissue culture methods, such as Chinese patent CN200510086732.8, but these methods are relatively complicated and difficult to apply in practice

[0004] The Institute of Geographical Sciences and Natural Resources Research of the Chinese Academy of Sciences has announced a method for industrialized seedling cultivation of Centipede grass in its Chinese patent CN201510937385.9, but this method is only used in conventional seedling cultivation Some improvements have been made in the method, but there is no significant improvement for the characteristics of centipede grass

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