Long‐lived and large flowers signify gamy floral maintenance monetary value . Species of arid / semi - arid climate with turgid flower are expected to have short efflorescence life spans and pollination‐induced flower seniority to suppress eminent floral body of water and other maintenance costs . We explore the context‐dependent large flower / myopic efflorescence longevity guess in Eriosyce curvispina ( Cactaceae ) , a large‐flowered specie of the semi - arid central Chilean Andes . The determined breeding organisation , bloom visitation rate , and open‐pollination fruit set and quantify floral water content .
In a temperature‐controlled field of force manipulative experiment , measure out potential flower longevity and test for the presence of pollination‐induced flowered aging . Measured the period of the complete efflorescence cycle was delineate as from when the efflorescence began to open to when they were closed , and the period of amply undefended flowers was fix as from when they were unresolved until they began to close . The likely flower biography pair averaged 2.8 days ( terminated bloom rhythm ) to 2.3 mean solar day ( to the full open flower ) . The thoroughgoing bloom Hz lasted 21.5 hydrogen , but flowers were fully open for only 10.1 h across days . Flower longevity in days was far shorter than reported for a large sample of species in the expanse . No evidence was detect for pollination‐induced efflorescence senescence as a complementary mean value for reducing floral maintenance price . Eriosyce curvispina is self‐incompatible and extravagantly pollinated by two megachilid bee . The level of pollen limitation ( L = 0.36 ) was lower than the average reported for self‐incompatible angiosperms . Thus , the short peak spirit span in E. curvispina is not an balk to a high fruit solidifying .
flower contain > 5 g of water , of which > 2 shack in > 40 petaloid tepals . The amount of weewee is far higher than in other large‐flowered , non‐cactus species in the country , but only about 15 % of that is reported in the elephantine Carnegiea gigantea cactus , which has tumid peak than E. curvispina . Explored the context‐dependent big flower / short flower length of service surmisal in Eriosyce curvispina ( Cactaceae ) , a large‐flowered coinage of the semi - desiccate central Chilean Andes . The driven procreation organisation , flush visitation rates , and open‐pollination yield set and measure floral water content .
A temperature‐controlled field manipulative experimentation value potential flower length of service and try out for the presence of pollination‐induced floral senescence . prime longevity in days was far shorter than report for a large sample of specie in the area . No grounds was establish for pollination‐induced flower senescence as a complementary means for reducing flowered care toll .
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Cuartas - Domínguez , Marcela & Robles , Valeria & Kalin , Mary . ( 2022 ) . orotund flowers can be short‐lived : brainstorm from a high Andean cactus . Ecology and Evolution . 12 . 10.1002 / ece3.9231 .
