Festuca rubra is a perennial grass used widely as fodder in Southwest China. It has particularly strong tolerance to heavy metal toxic. Some experiments have revealed that it can withstand very high concentrations(500...Festuca rubra is a perennial grass used widely as fodder in Southwest China. It has particularly strong tolerance to heavy metal toxic. Some experiments have revealed that it can withstand very high concentrations(500μg·g -1 ) of cadmium(Cd) and medium-high concentrations (100 μg·g -1 ) of copper (Cu). Festuca absorbs both Cd and Cu in a bi-phasic pattern. It makes Festuca very useful in the environmental and ecological engineering in removing heavy metal toxic and organic wastes. So, it would be necessary to study its physiology of salt tolerance and find the adapted range to NaCl.This is a preliminary report on salt tolerance of Festuca in sawdust culture. NaCl solution treatment concentrations were divided into 3 groups: 0 5%, 1%, 1 5%. After treatments for two weeks, we measured the amount of the chlorophyll, the soluble sugar content and the calorific values in the species. In this experiment, we used the emergy analysis method and found that the adapted range to NaCl was 0～1%, with optimum about 1%, with lethal threshold above 1 5%.展开更多
以豆科牧草拉巴豆[Lablab purpureus(L.)Sweet]为材料,通过单株选择,培育出优质高产的豆科牧草白花扁豆06-1(Semen dolichoris Album No.06-1),并对其进行品种比较试验和区域试验。结果表明,白花扁豆06-1适应性广,抗寒,年平均鲜草产量高...以豆科牧草拉巴豆[Lablab purpureus(L.)Sweet]为材料,通过单株选择,培育出优质高产的豆科牧草白花扁豆06-1(Semen dolichoris Album No.06-1),并对其进行品种比较试验和区域试验。结果表明,白花扁豆06-1适应性广,抗寒,年平均鲜草产量高达51063kg/hm2,比对照品种提高33.2%～44.1%。此外,白花扁豆06-1生长速度快,蛋白质含量高达17.8%,具有较高的营养价值,有望成为亚热带地区的优良豆科牧草品种。展开更多
文摘Festuca rubra is a perennial grass used widely as fodder in Southwest China. It has particularly strong tolerance to heavy metal toxic. Some experiments have revealed that it can withstand very high concentrations(500μg·g -1 ) of cadmium(Cd) and medium-high concentrations (100 μg·g -1 ) of copper (Cu). Festuca absorbs both Cd and Cu in a bi-phasic pattern. It makes Festuca very useful in the environmental and ecological engineering in removing heavy metal toxic and organic wastes. So, it would be necessary to study its physiology of salt tolerance and find the adapted range to NaCl.This is a preliminary report on salt tolerance of Festuca in sawdust culture. NaCl solution treatment concentrations were divided into 3 groups: 0 5%, 1%, 1 5%. After treatments for two weeks, we measured the amount of the chlorophyll, the soluble sugar content and the calorific values in the species. In this experiment, we used the emergy analysis method and found that the adapted range to NaCl was 0～1%, with optimum about 1%, with lethal threshold above 1 5%.
文摘以豆科牧草拉巴豆[Lablab purpureus(L.)Sweet]为材料,通过单株选择,培育出优质高产的豆科牧草白花扁豆06-1(Semen dolichoris Album No.06-1),并对其进行品种比较试验和区域试验。结果表明,白花扁豆06-1适应性广,抗寒,年平均鲜草产量高达51063kg/hm2,比对照品种提高33.2%～44.1%。此外,白花扁豆06-1生长速度快,蛋白质含量高达17.8%,具有较高的营养价值,有望成为亚热带地区的优良豆科牧草品种。
