A method for breaking the dormancy of Cyclocarya paliurus seeds

Abstract

The invention discloses a method for breaking dormancy of cyclocarya paliurus seeds. The method includes the steps of 1), soaking the cyclocarya paliurus seeds with 200-2500mg.L-1 gibberellin solution for 8-10 days and mixing once every other 6-8 hours; 2), mixing the cyclocarya paliurus seeds and the gibberellin solution which are subjected to seeds soaking with wet sands, wherein water content of the mixed wet sands is 60-70% of that of saturation moisture content, and volume ratio of the wet sands to the seeds is 3:1; 3), placing the mixture of the seeds and the wet sands in a cutting pool to perform natural stratification for 60-80 days. More than 75% of the full seeds of the cyclocarya paliurus seeds can sprout rapidly and tidily, and seedlings can be directly sown or raised in a container. The method is high in operability, simple and safe, low in cost and good in treatment effect, and wide market prospect and high production promotion value are foreseen.

Description

technical field [0001] The invention relates to a method for breaking dormancy of Cyclocarya paliurus seeds, belonging to the technical field of forest tree seedlings. Background technique [0002] Cyclocarya paliurus (Batal.) Iljinskaja, also known as Cyclocarya paliurus (Batal.) Iljinskaja, is a plant of the genus Cyclocarya paliurus (Batal.) Iljinskaja in the class Dicotyledoneae. It is a unique single-species genus of plants in my country, one of the endangered plants under national key protection, and belongs to the third category of protected plants (Xie Mingyong et al., 2001; Fang Shengzuo and Yang Wanxia, ​​2003). Widely distributed in Jiangxi, Zhejiang, Jiangsu, Anhui, Fujian, Taiwan, Hubei, Sichuan, Guizhou and other places in the mountains, valleys or limestone mountains at an altitude of 420-1100 meters (east)-2500 meters (west) (Xie Mingyong et al., 2001 ; Fang Shengzuo et al., 2003). Cyclocarya caramosa likes light, and its seedlings are slightly shade-tolera...

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Problems solved by technology

[0006] But the above-mentioned report about breaking the dormancy of Cyclocarya paliurus seeds has the following deficiencies: (1) the operability of the method is poor, and the implementation method is not specific, such as handling concentrated sulfuric acid concentration, temperature and duration etc.; (2) gibberellin concentration is too low (300~600mg·L -1 ), the treatment time is short (generally 2 days), and the effect of promoting seed germination is not obvious; (3) the operation of the method has certain dangers, concentrated sulfuric acid is not easy to buy, and the operation of people who do not have relevant professional knowledge has certain dangers ; (4) The operation process is too complicated, and it is not easy to popularize and apply in production

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