南京中山植物园于20世纪50年代引种栽培了11株南方红豆杉〔Taxus chinensis(Pilg.)Rehd. var. mairei(Lemée et Lévl.)Cheng et L.K.Fu〕。45年后,在邻近的天然林中出现了含有400余个个体的自然种群。根据这一事实作者认为,...南京中山植物园于20世纪50年代引种栽培了11株南方红豆杉〔Taxus chinensis(Pilg.)Rehd. var. mairei(Lemée et Lévl.)Cheng et L.K.Fu〕。45年后,在邻近的天然林中出现了含有400余个个体的自然种群。根据这一事实作者认为,如果整体生态条件具备,也就是在生物多样性和生境多样性都很丰富的自然生境中,迁地保护的小种群可以发展成较大种群,这将使迁地保护的作用与功能得到重大发展。从保护生物学原理出发,应认真关注迁地保护的生境条件。因此,迁地保护区的设计应予以改进,还应构建人工栽培园地与自然(野生)生境混合的区域,以创造自然种群发生的必要条件。展开更多
Six popular plants used in skin disease(dermatosis) are selected to test the influence of their extracts to the activity of tyrosinase. The results show that Stellaria media (L.) Cyr., Stenoloma chusana (L.) C...Six popular plants used in skin disease(dermatosis) are selected to test the influence of their extracts to the activity of tyrosinase. The results show that Stellaria media (L.) Cyr., Stenoloma chusana (L.) Ching, Sedum sarmentosum Bunge and Humulus scandens (Lour.) Merr. have inhibitory effects. Bidens bipinnata L. and Pueraria lobata (Willd.) Ohwi have no obvious inhibitory or stimulative effects.展开更多
The nutrient components and resistance indexes of \%Mentha crispate \%Schrad. ex Willd. were determined after introduced from Yunnan Province. The results showed that its nutrient components are accorded with the stan...The nutrient components and resistance indexes of \%Mentha crispate \%Schrad. ex Willd. were determined after introduced from Yunnan Province. The results showed that its nutrient components are accorded with the standard of modern food. The dry resistance was strong, the 80%-90% of leaves were wilting at soil water content about 6.2%. The cold resistance was poor, electrolyte leakage rate of leaves was 47.88% at 0℃ and LT50 was merely -0.9℃, So this plant grow unhealthy in field on winter in Nanjing.展开更多
文摘南京中山植物园于20世纪50年代引种栽培了11株南方红豆杉〔Taxus chinensis(Pilg.)Rehd. var. mairei(Lemée et Lévl.)Cheng et L.K.Fu〕。45年后,在邻近的天然林中出现了含有400余个个体的自然种群。根据这一事实作者认为,如果整体生态条件具备,也就是在生物多样性和生境多样性都很丰富的自然生境中,迁地保护的小种群可以发展成较大种群,这将使迁地保护的作用与功能得到重大发展。从保护生物学原理出发,应认真关注迁地保护的生境条件。因此,迁地保护区的设计应予以改进,还应构建人工栽培园地与自然(野生)生境混合的区域,以创造自然种群发生的必要条件。
文摘Six popular plants used in skin disease(dermatosis) are selected to test the influence of their extracts to the activity of tyrosinase. The results show that Stellaria media (L.) Cyr., Stenoloma chusana (L.) Ching, Sedum sarmentosum Bunge and Humulus scandens (Lour.) Merr. have inhibitory effects. Bidens bipinnata L. and Pueraria lobata (Willd.) Ohwi have no obvious inhibitory or stimulative effects.
文摘The nutrient components and resistance indexes of \%Mentha crispate \%Schrad. ex Willd. were determined after introduced from Yunnan Province. The results showed that its nutrient components are accorded with the standard of modern food. The dry resistance was strong, the 80%-90% of leaves were wilting at soil water content about 6.2%. The cold resistance was poor, electrolyte leakage rate of leaves was 47.88% at 0℃ and LT50 was merely -0.9℃, So this plant grow unhealthy in field on winter in Nanjing.