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Research of
plant type and light distribution of tomatoes determined by
imaging technology
Hui Feng*, Ting Zhang, Yun-Tao Shi,
Wei-Jia Wang and Wu-Hong Wang
Department of Horticulture, Shenyang Agricultural
University, Shenyang, China.
*Corresponding author. E-mail:
fenghuiaaa@263.net.
Accepted 22 June, 2010 |
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In order to determine the canopy structure of tomato plants
(Lycopersicon esculentum Mill.) that has the
advantages of increasing light interception and decreasing
planting area, the authors selected two representative
tomato plant type strains, namely, leaf-up and leaf-down as
testing materials. Plant type structure parameters, leaf
area index (LAI) and light distribution (gap fraction) were
measured using imaging technology. At planting spacing of
0.4, 0.5, and 0.6 m, the effective LAI of leaf-up tomatoes
was all greater than that of leaf-down tomatoes. At the
azimuths and zeniths, gap fractions of leaf-up tomatoes were
less than those of leaf-down tomatoes. Overall, the
interceptive capability of leaf-up tomatoes was superior to
that of leaf-down tomatoes. The leaf-up type is a better
plant type for close planting and intercepts more light.
Key words:
Tomato, plant type, plant spacing, light distribution,
imaging technology.
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