High seed production makes Sporobolus indicus var. pyramidalis a difficult to control invasive grassland plant. The objective of the present study was to investigate the bioactivity of Cyperus rotundus, Phyllanthus tenellus and Ricinus communis green leaf extracts and of Carica papaya seeds on S. indicus germination without breaking dormancy, simulating the field conditions. The ethanolic extract bioactivity of C. rotundus, P. tenellus, R. communis green leaves and C. papaya seeds, at concentrations of 25, 50 and 75% in S. indicus germination was evaluated. Carotenoids, flavonoids, soluble phenolic compounds and total tannins were quantified in the extracts. The chemical component concentrations varied between alcoholic extracts. The P. tenellus extracts at all dilutions and those of R. communis and C. papaya at 75% completely suppressed S. indicus seed germination at five and ten days which can be attributed to their high tannin concentration, total phenolic compounds and flavonoids.

译文

:高种子产量使印度孢子变种变种。锥体植物是难以控制的侵入性草原植物。本研究的目的是在不破坏休眠状态的情况下,研究香附子,余甘子和藤黄绿叶提取物以及番木瓜种子对印度dic的萌发的生物活性,模拟田间条件。评价了印度圆角萌发中浓度为25%,50%和75%的圆形念珠菌,tenellaus,R。communis绿叶和番木瓜种子的乙醇提取物生物活性。对提取物中的类胡萝卜素,类黄酮,可溶性酚类化合物和单宁总量进行了定量。酒精提取物之间的化学成分浓度有所不同。所有稀释度下的P. tenellus提取物以及R. communis和C. papaya的提取物在第5天和第10天都完全抑制了印度梧桐种子的萌发,这可以归因于其单宁浓度高,总酚类化合物和类黄酮含量高。

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