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甜叶菊(Teria rebandiana(Bertoni)Temsl)原产南美洲巴拉圭的一种多年生菊科草本植物,其叶片里含有甜叶菊糖甙,甜度为蔗糖的300倍左右,一般可作甜茶泡饮,亦可制成片剂或提炼成结晶,作为甜味改进剂,据报导它对治疗胖病和糖尿病很有好处,目前国内外都在大力进行研究.我国引种甜叶菊的时间不长,仅2—3年之久,试种单位不多,栽培面积不大.为了加速发展甜叶菊生产,急需解决苗木问题,由于甜叶菊种子细小,育苗技术要求较高,而且也因开花季节限制,难于等待开花结籽,更因为甜叶菊以采刈茎叶为产量,大量的经常的摘叶势必影响种子的产量和质量,给育苗工作增加了难度,因甜叶菊茎杆合糖甙少,无利用价值,笔者试图利用收刈摘叶后的茎杆进行扦插育苗,以求多快好省地繁殖苗木,目前国内外有关甜叶菊扦插育苗的报道极少,仅有浙江省科学院亚热带作物研究所1979年第二期《浙江亚热带作物通讯》中第27页报道了17.4%的扦插成活率.为了提高扦插成活率,特进行扦插育苗的方法研究.
Stevia (Teria rebandiana (Bertoni) Temsl) Native perennial Asteraceae herb of Paraguay, its leaf contains stevia glycosides, sweetness is about 300 times that of sucrose, generally can be used as sweet tea bubble drink, also Can be made into tablets or refined into crystals, as a sweetness improver, it is reported that it is very good for the treatment of obesity and diabetes, at home and abroad are vigorously studied.China’s introduction of stevia is not long, only 2- In the past three years, there are not many experimental units and small cultivation areas.In order to speed up the production of Stevia, it is urgent to solve the problem of nursery stock. Due to the small size of the stevia seedlings and the high seedling technical requirements, it is difficult to wait for the flowering season Seeds, but also because Stevia mining mulching stems and leaves as a yield, a large number of regular pick leaves potential will affect the yield and quality of seed, nursery work to increase the difficulty, due to less stevia Ganoderma glycosides, non-use value, The author tried to use the harvest after harvesting the stem cuttings for cuttage nursery, in order to seek more and better breeding of seedlings, the current domestic and foreign reports of stevia cuttings rarely, only the Zhejiang Academy of Sciences Institute of Subtropical Crops in 1979 two The cuttings survival rate of 17.4% was reported on page 27 of Zhejiang Subtropical Crops Newsletter in this paper.In order to improve the survival rate of cuttings, the method of cutting propagation was studied.