Phenotype correlation analysis and excellent germplasm screening of herb Bletilla Rchb. f. based on comprehensive evaluation from thirty-three geographic populations

Table 4 Correlation degree and rank of pseudobulb weight and main active ingredient contents based on gray relational analysis

Population code	Correlation degree		Relative correlation degree	Rank
Population code	relative to optimal seq	relative to least seq	Relative correlation degree	Rank
HNSZ	0.721	0.432	0.625	1
AHBZ	0.683	0.434	0.611	2
HBLT	0.676	0.471	0.589	3
HBSN	0.631	0.452	0.583	4
JSNJ	0.628	0.465	0.574	5
GXHZ	0.635	0.501	0.559	6
HBWH	0.611	0.483	0.558	7
SCLS (B. ochracea)	0.607	0.485	0.556	8
HBXG	0.649	0.525	0.553	9
HBYL	0.639	0.532	0.545	10
SCWY	0.608	0.508	0.545	11
GZZY	0.566	0.505	0.528	12
HBXS	0.577	0.522	0.525	13
SXZP (B. ochracea)	0.595	0.558	0.516	14
HNLS	0.552	0.538	0.506	15
HBLC	0.528	0.518	0.505	16
HBHF	0.571	0.568	0.501	17
HBWF (B. ochracea)	0.574	0.575	0.500	18
XSSC	0.525	0.533	0.496	19
YCWZ	0.488	0.531	0.479	20
HBMC	0.531	0.590	0.474	21
HNLS (B. ochracea)	0.501	0.571	0.467	22
SCLS	0.515	0.597	0.463	23
HBXE	0.476	0.593	0.445	24
HNSZ (B. ochracea)	0.467	0.599	0.438	25
HNCL	0.494	0.652	0.431	26
HBJS	0.451	0.612	0.424	27
HBSY	0.445	0.633	0.413	28
SXXX	0.446	0.655	0.405	29
SYZS	0.438	0.646	0.404	30
GXLY	0.440	0.665	0.398	31
HBJM	0.406	0.694	0.369	32
YNBS	0.409	0.757	0.351	33

ISSN: 1471-2229