Rapid Propagation of Seedling Grafting for Rare Tea Germplasm

doi:10.11924/j.issn.1000-6850.casb17010114

Abstract

Abstract: The paper aims to explore the rapid propagation of seedling grafting for rare tea germplasm. 10 rare tea germplasms includingCamellia sinensis cv. Guilv 1, C.sinensis cv. Guilv 2, C.sinensis cv. Guilv 3, etc, were used as scions, and C. sinensis cv. Fudingdabaicha as rootstocks. The survival rate, tree height, tree crown and the number of potential cuttings in the 10 grafted rare germplasms were determined. These indicators from 3 The paper aims to explore the rapid propagation of seedling grafting for rare tea germplasm. 10 rare tea germplasms includingCamellia sinensis cv. Guilv 1, C.sinensis cv. Guilv 2, C.sinensis cv. Guilv 3, etc, were used as scions, and C. sinensis cv. Fudingdabaicha as rootstocks. The survival rate, tree height, tree crown and the number of potential cuttings in the 10 grafted rare germplasms were determined. These indicators from 3 grafted rare germplasms were compared to their cutting seedlings after transplantation. The results showed that: the survival rate of 10 grafted rare germplasms varied from 79.6% to 97.9%, with an overall mean of 88.3%, and showed significantly difference; their tree height, tree crown and the number of potential cuttings presented obvious differences, which indicated that in the process of grafting, the rare tea germplasm had incompatibility to some extent; compared with 3 grafted rare germplasms after 3 years, the tree height, tree crown and the number of potential cuttings in their cutting seedlings after transplantation were 19.3-34.7 cm, 14.4-17.4 cm, and 50.5-80.5 higher, respectively. Generally, grafting can shorten the propagation of the rare tea germplasm by 2-3 years, compared with the cutting seedlings. After 3 years graft, the number of cuttings per 666.7 m2 could reach 643 thousand. grafted rare germplasms were compared to their cutting seedlings after transplantation. The results showed that: the survival rate of 10 grafted rare germplasms varied from 79.6% to 97.9%, with an overall mean of 88.3%, and showed significantly difference; their tree height, tree crown and the number of potential cuttings presented obvious differences, which indicated that in the process of grafting, the rare tea germplasm had incompatibility to some extent; compared with 3 grafted rare germplasms after 3 years, the tree height, tree crown and the number of potential cuttings in their cutting seedlings after transplantation were 19.3-34.7 cm, 14.4-17.4 cm, and 50.5-80.5 higher, respectively. Generally, grafting can shorten the propagation of the rare tea germplasm by 2-3 years, compared with the cutting seedlings. After 3 years graft, the number of cuttings per 666.7 m2 could reach 643 thousand.

CLC Number:

S571.1

References

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