摘要
以钩藤(Uncaria rhynchophy)为材料,设置8个施肥水平,按有机硒纯量计,S1、S2、S3、S4、S5、S6、S7、S8分别为0(空白)、0.9、1.8、2.7、3.6、4.5、5.4、6.3 g/hm2。用水稀释后叶面喷施,考察其带钩茎、小枝茎、叶片的产量、总硒、有机硒、钩藤碱、异钩藤碱和浸出物的含量变化。结果表明:(1)含氨基酸有机硒能促进钩藤的生长,带钩茎、小枝茎、叶片的产量分别提高15.8%、17.9%、23.6%;(2)能显著提高带钩茎、小枝茎和叶片中有机硒的含量,有机硒转化率分别为93.3%、92.6%、90.4%;(3)能促进带钩茎、小枝茎和叶片中的浸出物的积累,在一定用量范围内,能促进带钩茎、小枝茎和叶片中的钩藤碱、异钩藤碱含量,以5.4 g/hm2处理较好。综上可知,施用含氨基酸有机硒能促进钩藤植株生长,提高带钩茎、小枝茎和叶片的有机硒和浸出物的含量,在一定用量范围内,能促进钩藤生物碱的积累。用量以4.5~5.4 g/hm2为宜。
Uncaria rhynchophy was treated with organic selenium fertilizer containing amino acids by foliar spray at 8 levels: S1 0(blank), S2 0.9 g/ha, S3 1.8 g/ha, S4 2.7 g/ha, S5 3.6 g/ha, S6 4.5 g/ha, S7 5.4 g/ha and S8 6.3 g/ha, calculated according to the pure amount of selenium, and the yield, total selenium, organic selenium, rhynchophylline, isorhynchophylline and the content of extracts of the hook-bearing stems, the branches and the leaves of U. rhynchophy were determined. The results showed that the organic selenium containing amino acids promoted the growth of U. rhynchophy, and increased the yield of the stems,branches and leaves by 15.8%, 17.9% and 23.6%, respectively. The organic selenium significantly improved the content of organic selenium in the hook-bearing stems, branches and leaves, and the conversion rates of organic selenium in the stems, branches and leaves were 93.3%, 92.6% and 90.4%, respectively. The organic selenium was favourable for the accumulation of the extract in the stems, branches and leaves, and increased the contents of rhynchophylline and isorhynchophylline in the stems, branches and leaves within a certain range of application rate, the highest in the treatment of 5.4 g/ha. It is concluded that organic selenium containing amino acids could promote the growth of U. rhynchophy, increase the contents of organic selenium and extract in the stems, branches and leaves, and promote the accumulation of alkaloids in U. rhynchophy at a given range of application rate, with the best being from 4.5 to 5.4 g/ha.
作者
冯世鑫
韦玉国
FENG Shixin;WEI Yuguo(Guangxi Botanical Garden of Medicinal Plants,Nanning,Guangxi 530023;Rong'an Feiteng Chinese Medicinal Herbs Cooperatives,Rang'an,Guanxi 545413;Rong'an Shunwei Technology Co.,Ltd.,Rang'an,Guangxi 545413)
出处
《热带农业科学》
2020年第3期13-18,共6页
Chinese Journal of Tropical Agriculture
基金
广西柳州市科技攻关与新产品试制项目(No.2017BH40301)。
关键词
钩藤
含氨基酸有机硒
生长
硒吸收
品质
Uncaria rhynchophy
organic selenium containing amino acids
growth
selenium absorption
quality
