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为科学评价中国灌木辣椒种质,选取有代表性的8份辣椒材料,开展了中国灌木辣椒农艺性状鉴定和疫病抗性分析。结果表明:中国灌木辣椒长势强,株高均在1.0 m以上,叶片阔大,花瓣白绿色;果实直立向上,单果质量在0.51~2.04 g之间,平均为1.26 g;果实辣椒素与二氢辣椒素含量之和在565.00~1821.00 mg/kg,平均为1328.33mg/kg,是一年生辣椒B9431的407倍;对疫霉菌抗性水平表现为中抗至高抗,其中,海南野生灌木辣椒H108表现高抗。基于表型数据的主成分分析将中国灌木辣椒与一年生辣椒及美洲灌木辣椒有效区分开来。本研究结果为中国灌木辣椒优异基因的发掘和有效利用提供了理论参考。
In order to scientifically evaluate the germplasm resources of Chinese shrubs, we selected 8 representative pepper materials and carried out the agronomic character identification and disease resistance analysis of the Chinese shrubs. The results showed that: the shrubs in China shrubs grew strong, the plant height were more than 1.0 m, leaf width, petals white green; fruit upright, single fruit mass in the 0.51 ~ 2.04 g, with an average of 1.26 g; fruit capsaicin and dihydro The sum of capsaicinoid contents was 565.00-1821.00 mg / kg with an average of 1328.33 mg / kg, which was 407 times that of annual pepper B9431. The resistance to Phytophthora infestans was moderately resistant and highly resistant. Among them, Hainan shrub H108 showed high anti. Principal component analysis based on phenotypic data effectively distinguished Chinese shrub peppers from annual peppers and shrubs from American shrubs. The results of this study provide a theoretical reference for the discovery and effective utilization of the excellent genes of shrubs in China.