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甜菊是天然甜味剂植物,甜菊叶是重要的出口创汇物资。近年来,甜菊在我国东部沿海及长江中下游地区广泛种植,平均每亩收入超千元,具有较高的经济效益和社会效益。甜菊育苗方法有播种、扦插、分株、压条等多种,而以扦插育苗方法最为简便,繁殖系数又高,还可解决部分地区开花不结实,无法进行种子育苗的矛盾,有利于良种的推广。扦插育苗应掌握以下技术关键: 一、选用良种甜菊叶中甜菊糖甙含量的高低是影响甜菊叶品质和产值的主要因素。一般品种干叶中甜菊糖甙含量为10～12％。目前引进的“186”和“187”两个品种,枝细、叶厚、叶多,其干叶中甜菊甙含量高达16％,很受外商青睐。与其它品种相比,每亩可多收入
Stevia is a natural sweetener plant, stevia leaf is an important export earning material. In recent years, stevia is widely planted in the coastal areas of China’s eastern coast and the middle and lower reaches of the Yangtze River. The average income per mu is over RMB 1,000, which has high economic and social benefits. Stevia seedling cultivation methods are sowing, cutting, ramets, battens and so on, and the cutting propagation method is the most simple and reproductive coefficient is high, but also can solve the blooming in some areas, unable to carry out seedling nursery contradictions, is conducive to the promotion of improved varieties . Cutting seedling should have the following technical key: First, the selection of stevia leaf stevia content of stevioside is the main factor affecting the quality and output value of stevia. The general varieties of stevia leaf stevioside content of 10 to 12%. Currently introduced “186” and “187” two varieties, thin branches, thick leaves, leaves and more, the dried leaves stevioside content of up to 16%, very popular with foreign investors. Compared with other varieties, more income per acre