摘要
目的:研究蒺藜适宜种植密度和最佳采收期。方法:在60cm垄作下,设计4个种植密度,即株距10,20,30,50cm,研究了蒺藜单株产量、单位面积产量和叶面积指数变化;用薯蓣皂苷作标准品,采用光谱检测法,测定了蒺藜总皂苷含量的动态变化。结果:蒺藜单株产量随密度增大而降低,30和50cm株距间差异不显著,其他株距间差异显著;单位面积产量随密度增大而增加,各密度处理间差异均达到显著水平,8月下旬达到产量高峰;蒺藜生长高峰最佳叶面积指数为1.4;蒺藜总皂苷含量有2个高峰,即6月下旬和8月下旬,其中8月下旬与产量高峰一致,这时总灰分含量也处于最低水平。结论:蒺藜最佳种植密度度为60cm垄作下大约10cm株距,最佳采收期8月下旬,产量可达到1400～2000kg·hm-2。
Objective： To study the suitable growth density and the optimal harvest time of Tribulus terrestris. Method： Four growth densities were set with 60 cm breadth ridge and individual distance of 10, 20, 30 and 50 cm. The yield per individual and per unit area under the different growth densities were determined. Using yam saponin as a standard substance, the total saponin of T. terrestris was determined by UV spectrophotometry. Result： The individual yield decreased with the density increase, but the difference between 30 cm and 50 cm individual distance was not substantial. The yield per unit area increased with density increase, and the difference between all densities was significant. The yield peak was in the last ten-day of August. The best leaves area index was 1.4 at the growth peak time. The total saponins content reached peaks respectively in the last ten-day of June and August, but the peak in last ten-day of August was consistent with the one of yield per unit area, and the total ashes content was the lowest at the same time. Conclusion： The suitable growth density is 10 cm individual distance on the 60 cm breadth ridge. The optimal harvest time is in the last ten-day of August. The yield per unit area is 1 400 -2 000 kg ·hm^-2.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2008年第7期750-753,共4页
China Journal of Chinese Materia Medica
基金
国家科技支撑计划(2006BAI06A05-05)
吉林省科技发展计划(20040901-02-05)
关键词
蒺藜
种植密度
最佳采收期
Tribulus terrestris
fitting growth density
best harvest time
