Fig. 4
Effects
of spectrum treatments on growth of (A) shoot length, (B) total length
of roots, (C) surface area of roots, (D) volume of roots, (E) root tips,
(F) average diameter of roots in nematode-resistant Pinus
thunbergii plantlets. Data represent mean ± standard error (SE).
Different lowercase letters indicate significant differences between
spectrum treatments (p < 0.05, by Duncan’s test). G:
Performance of plantlet growth under different light spectrum
treatments.