Regulation of the growth of sprouting roots of black locust seedlings using root barrier panels

How can we regulate an invasive alien species of high commercial value? Black locust ( Robinia pseudoacacia L.) has a unique capacity for seed dispersal and high germination. Field surveys indicate that black locust increases its growing area with sprouting roots and the elongation of horizontal roo...

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Bibliographic Details
Published in:Journal of forestry research 2023-06, Vol.34 (3), p.655-664
Main Authors: Kitaoka, Satoshi, Matsunami, Shiro, Wang, Yannan, Fujita, Saki, Makoto, Kobayashi, Hirata, Toshiyuki, Koike, Takayoshi
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Elongation
Forestry
Germination
Growth
Introduced species
Invasive species
Invasiveness
Laws, regulations and rules
Life Sciences
Locusts
Original Paper
Panels
Robinia pseudoacacia
Root barriers
Roots
Seed dispersal
Seedlings
Soil depth
Surveys
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Summary:How can we regulate an invasive alien species of high commercial value? Black locust ( Robinia pseudoacacia L.) has a unique capacity for seed dispersal and high germination. Field surveys indicate that black locust increases its growing area with sprouting roots and the elongation of horizontal roots at a soil depth of 10 cm. Therefore, a method to regulate the development of horizontal roots could be effective in slowing the invasiveness of black locust. In this study, root barrier panels were tested to inhibit the growth of horizontal roots. Since it is labor intensive to observe the growth of roots in the field, it was investigated in a nursery setting. The decrease in secondary flush, an increase in yellowed leaflets, and the height in the seedlings were measured. Installing root barrier panels to a depth of 30 cm effectively inhibit the growth of horizontal roots of young black locust.
ISSN:1007-662X
1993-0607
DOI:10.1007/s11676-022-01527-9