title: [Quality classification criteria of Paeonia suffruticosa seeds].
abstract: In order to establish the quality classification criteria of Paeonia suffruticosa seeds, thirty-one batches of P. suffruticosa seeds from different provenances were selected. The seed rooting rate, seed germination rate, seed purity, seed viability, 1,000-seed weight and moisture content were determined and analyzed through SPSS 20.0 software. Seed rooting rate, seed germination rate and seed purity were selected as the main index for classification, while 1,000-seed weight, seed viability and moisture content could be used as important references. The seed quality grading of P. suffruticosa was set as three grades. The seed quality of each grade should meet following requirements: For the first grade seeds, seed rooting rate ≥ 80%, seed germination rate ≥ 80%, seed purity ≥ 90%, seed viability ≥ 80%, 1,000-seed weight ≥ 250 g, moisture content, ≤ 10. For the second grade seeds, seed rooting rate ≥ 50%, seed germination rate ≥ 60%, seed purity ≥ 70%, seed viability ≥ 75%, 1,000-seed weight ≥ 225 g, moisture content ≤ 10. For the third grade seeds, seed rooting rate ≥ 20%, seed germination rate ≥ 45%, seed purity ≥ 60%, seed viability ≥ 45%, 1,000-seed weight ≥ 205 g, moisture content ≤ 10. The quality classification criteria of P. suffruticosa seeds have been initially established.
authors.forename: Ya-yue
authors.initials: YY
authors.lastname: Cao
authors.forename: Zai-biao
authors.initials: ZB
authors.lastname: Zhu
authors.forename: Qiao-sheng
authors.initials: QS
authors.lastname: Guo
authors.forename: Li
authors.initials: L
authors.lastname: Liu
authors.forename: Chang-lin
authors.initials: CL
authors.lastname: Wang
mesh_terms: D002681:China; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D018525:Germination; D029596:Paeonia / Q000737:chemistry* / Q000145:classification / Q000254:growth & development; D012639:Seeds / Q000737:chemistry / Q000145:classification* / Q000254:growth & development
chemical_list: D004365:Drugs, Chinese Herbal