为探讨仿生栽培过程金线莲品质变化,对不同生长时期金线莲有效成分、环境因子及它们之间的关系进行了研究。结果表明:栽培期间,仿生金线莲多糖含量略有增加,与野生金线莲含量近似;游离氨基酸含量先下降再上升,最终接近野生金线莲含量水...为探讨仿生栽培过程金线莲品质变化,对不同生长时期金线莲有效成分、环境因子及它们之间的关系进行了研究。结果表明:栽培期间,仿生金线莲多糖含量略有增加,与野生金线莲含量近似;游离氨基酸含量先下降再上升,最终接近野生金线莲含量水平;仿生金线莲苯丙氨酸解氨酶(P A L)活性变化幅度较大,大部分时期高于野生金线莲;黄酮含量变化呈先减后增,再缓慢减少的趋势,栽培5-6个月后达到最高水平。相关分析显示,仿生金线莲生理生化指标与环境因子相关性不显著,仅P A L酶活性与空气温、湿度显著相关,对环境变化较为敏感。研究表明,仿生种植金线莲主要药用成分含量与野生金线莲相仿,每年9-1 0月是仿生金线莲适宜的采收时期。展开更多
In the course of studying Betula luninifera community at Weimin in Fujian Province,the interrelation between the growth rate of B. luminefera and its neighborhood interference index has been analyzed and the relation ...In the course of studying Betula luninifera community at Weimin in Fujian Province,the interrelation between the growth rate of B. luminefera and its neighborhood interference index has been analyzed and the relation of its size,neighborhood interference index and growth rate has been found.The results show that the influence of neighborhood interference index and growth rate has been found.The results show that the influence of neighborhood interference becomes weak gradually among the investigated trees whose breast height diameter is over 10cm.So it is suggested that B. luminifera at Weiming should be forested before the breast diameter reaches 10cm.展开更多
The seedling stage test on 55 open-pollinated families of plus trees of Betula luminifera H. Winkl. from Shaowu, Nanping and Wuping in Fujian Province was carried out in State-owned Forest Farm of Weimin, Shaowu. The ...The seedling stage test on 55 open-pollinated families of plus trees of Betula luminifera H. Winkl. from Shaowu, Nanping and Wuping in Fujian Province was carried out in State-owned Forest Farm of Weimin, Shaowu. The genetic variations of Betula luminifera were studied, based on the investigation of 1-year-old seedling traits from different families. The results showed that there were abundant variations within the Betula luminifera and very significant differences among families in seedling height, diameter and lateral branch. The variations were mainly controlled by genetic factors. According to this analysis, 11 excellent families were tentatively selected, the average genetic gain of height and diameter were 18.72% and 10.44% respectively. The selection effect was very striking. The Shaowu region was probably a superior genetic resource area of Betula luminifera .展开更多
文摘为探讨仿生栽培过程金线莲品质变化,对不同生长时期金线莲有效成分、环境因子及它们之间的关系进行了研究。结果表明:栽培期间,仿生金线莲多糖含量略有增加,与野生金线莲含量近似;游离氨基酸含量先下降再上升,最终接近野生金线莲含量水平;仿生金线莲苯丙氨酸解氨酶(P A L)活性变化幅度较大,大部分时期高于野生金线莲;黄酮含量变化呈先减后增,再缓慢减少的趋势,栽培5-6个月后达到最高水平。相关分析显示,仿生金线莲生理生化指标与环境因子相关性不显著,仅P A L酶活性与空气温、湿度显著相关,对环境变化较为敏感。研究表明,仿生种植金线莲主要药用成分含量与野生金线莲相仿,每年9-1 0月是仿生金线莲适宜的采收时期。
文摘In the course of studying Betula luninifera community at Weimin in Fujian Province,the interrelation between the growth rate of B. luminefera and its neighborhood interference index has been analyzed and the relation of its size,neighborhood interference index and growth rate has been found.The results show that the influence of neighborhood interference index and growth rate has been found.The results show that the influence of neighborhood interference becomes weak gradually among the investigated trees whose breast height diameter is over 10cm.So it is suggested that B. luminifera at Weiming should be forested before the breast diameter reaches 10cm.
文摘The seedling stage test on 55 open-pollinated families of plus trees of Betula luminifera H. Winkl. from Shaowu, Nanping and Wuping in Fujian Province was carried out in State-owned Forest Farm of Weimin, Shaowu. The genetic variations of Betula luminifera were studied, based on the investigation of 1-year-old seedling traits from different families. The results showed that there were abundant variations within the Betula luminifera and very significant differences among families in seedling height, diameter and lateral branch. The variations were mainly controlled by genetic factors. According to this analysis, 11 excellent families were tentatively selected, the average genetic gain of height and diameter were 18.72% and 10.44% respectively. The selection effect was very striking. The Shaowu region was probably a superior genetic resource area of Betula luminifera .
