甜菊宿根保护越冬技术研究

Studies on Overwintering of Stevia Rebaudiano Bertoni Perennial Root

本文应用随机区组田间试验,对甜菊宿根保护越冬技术以及宿根越冬率与干叶产量的关系进行了研究,结果表明:大量宿根越冬的最好方法为窖贮或沟贮,越冬率可达95％以上;田间小面积宿根越冬,应盖牲口粪或盖麦糠,其越冬率在80％以上。宿根干叶产量与越冬率呈极显著正相关。

In this paper, overwintering techniques of stevia rebaudiano bertoni perennial root and the relationship between winter survival rate of root and the yield of dry leaves were studied. Randomized blocks design was used in the field experiment. The results showed that the best method for large quantity of the perennial root was pit storage or ditch storage. Overwintering survival rate reached to over 95 % . While in the open field of small area, manure mulching or wheat husk mulching should be used. With this treatment, the overwintering survival rate was over 80 % . There is a significant correlation between dry leaves yield and overwintering survival rate.