. 2016 Mar 9;42:202–214. doi: 10.1007/s10886-016-0678-y

Table 4.

Correlation between prunasin concentration in roots and morphological and architectural parameters of Prunus serotina seedlings growing in 10 % low light (LL), 25 % medium light (ML), or 100 % high light (HL) of full natural sun light and in one of two combinations of seedlings: P (three P. serotina seedlings) or Q + P + L (three Quercus petraea + six P. serotina + mulching with P. serotina leaves). All data from three sampling dates (June, August, and September) were analyzed. RL – root length, SL – shoot length, SD – shoot diameter at root collar, RLR – root length ratio, W _R – root dry weight, W _S – shoot dry weight, W _L – leaves dry weight, W – total seedling dry weight, A _L – leaf area, R/S – root: shoot ratio, RWR – root weight ratio, SWR – shoot weight ratio, LWR – leaf weight ratio, LAR – leaf area ratio, LMA – leaf mass to area ratio. The definitions of the calculated parameters are given in Supplementary Material. r – Pearson’s coefficient of correlation, ^*0.01 ≤ P < 0.05, ^**0.001 ≤ P < 0.01, ^*** P < 0.001, in bold – r statistically significant (N = 17)

Morphological and architectural parameters	Pearson’s coefficient of correlation prunasin vs. parameter
Morphological and architectural parameters	LL	ML	HL
RL (mm)	0.373	−0.245	−0.227
SL (mm)	0.080	0.217	−0.104
SD (mm)	−0.158	−0.134	−0.316
SL/SD	−0.119	−0.700 ^**	−0.378
RLR (m g⁻¹)	−0.132	0.142	0.245
W_R (g)	0.154	−0.460	−0.615 ^**
W_S (g)	0.275	−0.131	−0.431
W_L (g)	0.187	−0.166	−0.370
W (g)	0.208	−0.258	−0.445
A_L (m²)	0.221	−0.055	−0.199
R/S	0.096	0.657 ^**	0.804 ^***
RWR	−0.173	−0.735 ^**	−0.827 ^***
SWR	−0.139	0.304	0.324
LWR	0.261	0.533 ^*	0.723 ^**
LAR (m² g)	0.055	0.690 ^**	0.777 ^***
LMA (g m⁻²)	0.467	0.538 ^*	−0.564 ^*