太子参新品种“施太1号”区域试验稳定性评价

Regional stability analysis of Pseudostellariae Radix new variety "Shitai No.1"

该文分析太子参新品种"施太1号"的田间稳定性与适应性,为太子参新品种的审定和推广应用提供参考。选择4个不同种植区域,以"黔太子参1号"(品种)和"SB-C"(品系)为对照,测量农艺性状、药材性状、药材品质等指标,比较3个品种(系)在不同种植区域间的表型差异。结果表明相比2个对照品种(系),18个农艺性状中"施太1号"有10个性状区域间变异系数最小,其他8个性状处于中间;8个药材性状和品质指标中浸出物含量、太子参环肽B含量、50 g块根数、单个块根重、单株药材重5个指标区域间变异系数在3个品种(系)中最小;基于3个品种(系)在4个种植区域间的表型差异,可划分为3类,新品种"施太1号"单独聚为一类,而"黔太子参1号"和"SB-C"存在明显交集。与"黔太子参1号"和"SB-C"相比,新品种"施太1号"在农艺性状、药材性状、药材品质等评价指标方面稳定性、一致性和适应性较好,可作为新品种进行保护、审定和推广应用。

To provide guidance for certification, popularization and application of Pseudostellariae Radix new variety, the regional adaptation and stabilities of ＂Sbitai No. 1＂ were evaluated. The ＂ Qian taizishen No. 1＂ and ＂SB-C＂ varieties （strains） were used as the control varieties. The agronomic, medicinal material traits and medicine quality were used as evaluation index to compare the phe- notypie difference of the three varieties （strains） in four planting areas. Compared to the control varieties, 10 agronomic traits of ＂Shi- tai No. 1＂ had the smallest coefficient of variation among the 18 agronomic traits, and other 8 agronomic traits placed the middle level. Among 8 medicinal material traits and medicine quality indicators, the coefficient of variation of different regions of the extract content, pseudostellarin B content, the number of 50 g root tuber, the plant medicinal materials weight and weight of single root of ＂ Shitai No. 1＂ were the smallest compare to other varieties （strains）. It could be divided into three groups based on the phenotypic difference of the three varieties （strains） in four planting areas. The ＂Shitai No. 1＂ was classified as one group, while the ＂Qian taizishen No. 1＂ and ＂SB-C＂ had cross clustering. The regional stability of several index about agronomic traits, medicinal material traits and medicinequality of ＂Shitai No. 1＂ were better than that of the control varieties （strains）. ＂Shitai No. 1＂ was suitable for planting, populariza- tion and application in the appropriate ecological areas of Guizhou province.