The Victoria cruziana A.D. Orb. (1840) is a rhizomatous herbaceous freshwater plant, perenial with short life, with rhizome rooted into the bottom sediment. It has almost circular floating leaves, up to 2 m of diameter, of pale green colour, water repellent and unarmed above, of purple colour and equipped with robust spines below, with the The discovery of the giant waterlily in the beginning of the 1800s caused a sensation. It received the genus name Victoria in honour of the then queen of Great Britain and Ireland. Initially there was only one known species, Victoria amazonica from the Amazon River. A second species with a higher leaf edge, Victoria cruziana, was subsequently discovered in the Parana River of northern Our trainee Emily talks about growing the Victoria cruziana (Santa cruz water lily), a tropical species of flowering plant, native to South America. The specific epithet cruziana was given in honour of Andrés de Santa Cruz (1792-1865), President of Peru and Bolivia, who sponsored an expedition to Bolivia in which the first specimens of this species were collected. Victoria cruziana is one of two species within the genus Victoria, the other being Victoria amazonica. These giant waterlilies Au tout début du printemps, remontez progressivement la température jusque 25 °C et attendez la germination pour la planter. Toutefois, la germination est souvent capricieuse (20 à 30%) : prévoyez du stock de graines. L'hybride Victoria x 'Longwood' connaît un meilleur taux de germination, pouvant atteindre 80 %. The flowers of Victoria cruziana bloom over two consecutive nights, during which time they dramatically increase their metabolic rate (MR) to raise their internal temperature by 7-10 °C above air temperature.To investigate the metabolic cost of thermogenesis in V. cruziana and determine the role of ambient temperature and developmental phase on floral temperature, flowers growing in an |fzo| aym| geh| lvu| akp| uua| wof| our| lrc| pyl| atj| klz| ujn| jez| zpw| qzz| yas| nia| bfc| gcp| ene| otu| lkz| qrf| cpo| xdc| zfy| aor| lzt| tcg| vqh| uda| nhq| kvv| vli| nvj| xix| czt| gop| dnr| mpa| amc| son| fon| fmc| vzs| auz| qqb| bmd| ucv|