论文部分内容阅读
宿根花卉是指以地下部分度过不良季节的多年生草本花卉,即夏、冬季来临时,或停止生长,或地上部分的茎叶枯萎,地下部分宿存,当年秋季或翌年春季再萌芽生长。宿根花卉一部分原产于温带和寒带,耐寒性强,可以露地越冬,故又称露地宿根花卉,如菊花、芍药、鸢尾萱草、玉簪等;一部分原产于热带和亚热带,大都是常绿的,耐寒力弱,冬季必须在温室内养护越冬,并且大部分要求夜温保持在16—20℃,故又称温室宿根花卉,如君子兰、非洲菊、鹤望兰、花烛等;其中还有相当一部分属于观叶植物,如文竹、
Perennial flowers refer to perennial herbaceous flowers that spend the bad season in the underground part, that is, they stop growing when the summer or winter comes, or the shoots and leaves of the aboveground are wilted, the underground parts are kept, and the autumn or the next spring is sprout. Perennial flowers native to the temperate and boreal, cold hardiness, can be exposed to the winter, it is also known as open perennial flowers, such as chrysanthemum, peony, iris Hemerocallis, Hosta, etc .; some native to the tropics and subtropics, mostly evergreen, Cold hardiness, cold winter in the conservation of winter must be maintained, and most require night temperature maintained at 16-20 ℃, it is also known as greenhouse perennial flowers, such as Clivia, Gerbera, Strelitzia, Anthurium; there is a considerable part Belong to foliage plants, such as text bamboo,