| Screening of Rheum tanguticum breeding materials with different flower colors based on multi\|index combined multivariate statistical analysis |
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| DOI：10.7606/j.issn.1000-7601.2025.02.01 |
| Key Words: Rheum tanguticum Maxim. screening of breeding materials color scheme root traits joint multivariate statistical analysis |
| Author Name | Affiliation | | LIU Dong | Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, China | | ZHAO Qiang | Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, China | | DUAN Ying | Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, China | | GAO Zhan | Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, China | | MENG Jinjin | Qilu Institute of Technology, Jinan, Shandong 250000, China | | CHEN Honggang | Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, China | | DU Tao | Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, China |
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| Abstract: |
| To identify suitable breeding materials of Rheum tanguticum, eighteen Rheum tanguticum Maxim. plants with different flower colors were selected as research materials. Comprehensive quality evaluation was conducted by assessing root traits and quantifying the contents of nine compounds, using correlation analysis, principal component analysis, and the entropy weighted TOPSIS method. The results showed that QH003yyf (S2), TGT (S14), and ZH002QS (S18) were disease\|free, and had large single root mass (0.97～1.54 kg), thick and long fibrous roots and reeds (31.72～36.00 mm, 30.5～36.1 cm; 58.32～68.47 mm, 5.1～6.8 cm). The total contents of emodin, rhein, chrysophanol, aloeemodin, and physcion contained in roots of 18 R. tanguticum Maxim. were in accordance with Pharmacopoeia standards. QH002yyf (S16), DH002yyfA (S3), HS002yyf (S1), TGTYS (S6), TGT (S14), and ZH001DH (S8) were high in the total content of the nine compounds, in the order of 48.86, 46.41, 45.88, 44.96, 44.23, 43.81 mg·g-1. The top 2 of the comprehensive ranking analyzed by entropy weight TOPSIS method were QH004yyf (S7) and ZH002QS (S18). In this study, TGT (S14) and ZH002QS (S18) were selected as the foundational materials for breeding and cultivating Rheum tanguticum varieties. The evaluation model, established through multi\|indicator joint multivariate statistical analysis for screening different flower colors in Rheum tanguticum breeding materials, can also be applied to the screening and evaluation of other breeding materials. |
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