Skip to main content

Table 2 Pairwise cross-species and phylogenetically independent contrast (PIC) correlations between the traits in this study

From: Evolutionary correlation of water-related traits between different structures of Dendrobium plants

  LDM LWC LDMC SLA MT UECS SD SV SAI VD PL PW PIL FDM FWC FPVN FN
LDM   −  0.336 0.209 − 0.176 − 0.190 − 0.187 − 0.442 0.561 − 0.610 0.229 0.459 0.261 0.480 0.703 − 0.387 0.222 0.322
LWC − 0.689   - 0.986*** 0.501 0.476 − 0.286 − 0.427 0.178 − 0.032 − 0.806* − 0.062 − 0.235 − 0.007 − 0.156 0.420 − 0.287 − 0.003
LDMC 0.706* − 0.987***   − 0.445 − 0.503 0.307 0.435 − 0.240 0.054 0.742* 0.063 0.108 − 0.008 0.025 − 0.347 0.250 0.029
SLA − 0.594 0.743* − 0.757*   − 0.505 0.435 − 0.534 0.469 0.065 − 0.547 0.704 − 0.640 0.556 0.153 0.314 − 0.434 − 0.046
MT − 0.277 0.400 − 0.363 − 0.298   − 0.754* 0.107 − 0.408 − 0.173 − 0.292 − 0.780* 0.338 − 0.628 − 0.432 0.238 0.063 0.060
UECS − 0.513 0.210 − 0.272 0.668 − 0.575   0.368 0.054 0.657 0.387 0.327 − 0.033 0.094 0.288 0.035 − 0.411 − 0.673
SD 0.595 − 0.723* 0.783* − 0.776* − 0.006 − 0.323   − 0.726* 0.729* 0.702 − 0.693 0.575 − 0.747* − 0.225 − 0.048 − 0.013 − 0.686
SV 0.354 0.096 − 0.145 0.395 − 0.545 0.130 − 0.403   − 0.272 − 0.256 0.742* − 0.224 0.882** 0.726* − 0.448 0.226 0.391
SAI 0.587 − 0.503 0.575 − 0.414 − 0.262 − 0.100 0.857** − 0.042   0.424 − 0.323 0.329 − 0.325 0.042 − 0.151 − 0.033 − 0.739*
VD 0.008 − 0.542 0.428 − 0.252 − 0.391 0.444 0.244 − 0.122 0.104   − 0.189 0.696 − 0.204 0.375 − 0.529 0.329 − 0.406
PL 0.092 0.103 − 0.155 0.647 − 0.773* 0.461 − 0.550 0.823* − 0.221 0.007   − 0.525 0.906** 0.518 − 0.135 − 0.059 0.324
PW 0.849** − 0.670 0.680 − 0.736* − 0.063 − 0.435 0.825** 0.037 0.772* 0.244 − 0.280   − 0.439 0.413 − 0.395 0.281 − 0.478
PIL 0.608 − 0.240 0.232 0.167 − 0.693 − 0.028 − 0.083 0.879** 0.235 − 0.097 0.777* 0.253   0.582 − 0.446 0.311 0.546
FDM 0.526 − 0.227 0.143 0.128 − 0.640 0.229 − 0.042 0.823** 0.239 0.333 0.666 0.418 0.773*   − 0.611 0.267 − 0.097
FWC − 0.570 0.547 − 0.485 0.295 0.506 0.070 − 0.234 − 0.570 − 0.362 − 0.480 − 0.331 − 0.534 − 0.675 −0.749*   − 0.883** − 0.282
FPVN 0.765* − 0.656 0.671 − 0.626 − 0.196 − 0.546 0.547 0.273 0.555 0.160 − 0.031 0.728* 0.553 0.408 −0.821**   0.534
FN 0.535 − 0.323 0.368 − 0.389 0.038 − 0.756* 0.053 0.283 − 0.032 − 0.383 0.097 0.186 0.499 0.017 −0.355 0.653  
  1. Correlation data are given for species-based analyses below the diagonal and for PIC analyses above the diagonal. The degree of significance for each correlation is indicated as follows
  2. LDM leaf dry mass, LWC leaf water content; LDMC, leaf dry matter content, SLA specific leaf area, MT mesophyll thickness, UECS upper epidermal cell size, SD stomatal density, SV stomatal volume, SAI stomatal area index, VD vein density, PL pseudobulb length, PW pseudobulb width, PIL pseudobulb internode length, FDM flower dry mass, FWC flower water content, FPVN flower petal vein number, FN flower number per pseudobulb
  3. *p < 0.05
  4. **p < 0.01
  5. ***p < 0.001