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首页> 外文期刊>Caldasia >Viabilidad y germinación de semillas de cuatro especies amenazadas de cactáceas
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Viabilidad y germinación de semillas de cuatro especies amenazadas de cactáceas

机译：生存和仙人掌四种威胁物种种子的萌发

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There are few studies about methods of evaluating the viability and germination of c a c t i seeds, key information to plan their conservation and preservation in their habitat or their survival for long periods under unfavorable environmental or storage conditions. In the present study, the viability of the seeds of the threatened Mexican species Echinocactus platyacanthus, Ferocactus pilosus, Lophophora williamsii, and Echinocactus grusonii, was explored with 2,3,5-triphenyl tetrazolium chloride (TZ) as well as their germination efficiency, in vitro and ex vitro. Seeds stored at room temperature for three years were used; viability was assessed with different concentrations of TZ. Germination rate and germination speed index (GSI) in the four species of cacti was assessed with different substrates. The viability of the seeds of E. platyacanthus was 87.5 % with 0.1 % tetrazolium chloride. The 98 % of germination percentage was obtained for F. pilosus without scarification and in organic forest soil-tezontle soil; the IVG was of 4.03 seeds per day. E.grusonii scarified with 1 min. in sulfuric acid germinated better (100 %) in the mixture of organic forest soil-tezontle soil and sand; both show a GSI of 8.3 and 8.1 seeds per day, respectively. There was a positive relationship between the tetrazolium viability test and the germination test. The topological staining patterns for each species were obtained and, in addition, reproduction methods were established, which may help in the conservation efforts of these endangered species.
机译：关于评估C a C T I种子的活力和萌发的方法几乎没有研究，关键信息，以在不利的环境或储存条件下长期以来在其栖息地或它们的生存中规划保守和保存。在本研究中，用2,3,5-三苯基四唑氯化锆（TZ）以及它们的萌发效率，探索了威胁墨西哥物种Echinocactus platyacantus platyacantus platyacantus platyacantus platyacantus platyacantus platyacantus platyacantus platyacantus platyacantus platyacantus platyacanthus pallyacanthus，ferocactus pilosus，Lophophora＆shusonii，体外和exturo。使用在室温下储存三年的种子;用不同浓度的TZ评估活力。用不同的基质评估四种仙人掌中的萌发率和发芽速度指数（GSI）。氯化锆氯化锆的种子的种子的可行性为87.5％。在没有划痕和有机森林土壤 - 德扎土壤的情况下，为F. parosus获得98％的发芽率; IVG每天4.03种子。 e.grusonii淹没1分钟。在有机林土壤 - 德扎氏土壤和沙子的混合物中致硫酸萌发（100％）;两者都分别显示了每天8.3和8.1种子的GSI。四唑鎓活力测试与发芽试验之间存在正相关关系。获得每个物种的拓扑染色模式，另外，建立了繁殖方法，这可能有助于这些濒危物种的保护努力。

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