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| Effects of Badi Degradable Film and Bud Grafting Quality onBudding Survival Rate and Growth of Rubber Seedlings |
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| DOI：10.16768/j.issn.1004-874X.2022.06.007 |
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| Abstract: |
| 【Objective】With the implementation of “plastic ban” in Hainan Province, the traditional plastic
bandage of rubber tree bud grafting can no longer be used, and it is urgent to use degradable materials as bandage in the
process of rubber tree bud grafting.【Method】With Badi degradable bandage grafted by different workers as budding
bandage, the effects of traditional plastic bandage and Badi degradable bandage on the survival rate, sprouting rate and
growth potential of mini-seedling buddings and young seedling buddings of rubber tree were compared.【Result】The
survival rate of mini-seedling buddings with traditional bandage was 47.33%-70.70% and the sprouting rate was 90.00%- 99.53%, while the survival rate of buddings with Badi degradable film was 35.32%-57.00% and the sprouting rate was
86.18%-92.56%, indicating that the survival rate and sprouting rate of buddings with the traditional bandage were significantly
higher than those with Badi bandage. In the first leaf whorl, the leaf whorl distance with the traditional bandage (19.24 cm)
was significantly higher than that with the Badi degradable film (18.06 cm), and there was no significant difference in other
growth indexes. In the second leaf whorl, the stem diameter of traditional bandage (4.62 mm) was significantly higher than that
of Badi degradable film (4.06 mm), while the whorl distance of Badi degradable f ilm (11.27 cm) was significantly higher than
that of traditional bandage (9.88 cm), but there was no significant difference in the growth indexes of other scions. Among the
young seedling buddings, the survival rate of traditional bandage treatment was 92.70%-98.09% and the sprouting rate was
93.64%-99.75%, while the survival rate of Badi degradable film treatment was 73.33%-86.67% and the sprouting rate was
92.50%-96.85%, indicating that the budding survival rate of the traditional bandage treatment was significantly higher than
Badi bandage treatment, and the sprouting rates were above 90%, there was no significant difference in the growth indexes of
scions.【Conclusion】The budding survival rates of mini-seedlings and young seedlings were significantly reduced by the Badi
degradable film, and the sprouting rate of mini-seedlings and the growth potential of scions were significantly affected, but the
growth potential of young seedling budding was not significantly affected. The bud grafting skill of the graft worker was also one
of the key factors affecting the budding survival rate. Therefore, Badi degradable film could not be widely used in the miniseedling buddings, but could be properly used in the young seedling budding of rubber tree . |
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