能源植物麻疯树嫁接改良技术研究

麻疯树作为生物柴油的重要原料,在研究和开发上越来越受重视。为适应产业发展需要,麻疯树已大量上山种植,但缺乏良种和技术保障。在麻疯树适应种植区金沙江干热河谷进行麻疯树嫁接技术研究,进行不同时间嫁接、不同嫁接方法、不同接穗等试验,比较嫁接前后植株形态、结果性状、抗病性等变化,研究影响麻疯树嫁接成活率的因子,以期为麻疯树规模种植后的品种改良提供技术支撑。

秦仲(1～4号)繁殖技术研究

Reproductive techniques for the new variety Qinzhong No.1～4 of Eucommia ulmoides were studied to resolve the bottleneck problem of being difficult to be cultivated in large areas.These problems are mainly lie in difficult rooting in cutting and tissue culture propagation,material deficiency in root burying propagation,low survival rate of branch grafting and budding in spring etc.A new propagation method of budding in Eucommia ulmoides was summarized in this study.Higher propagation coefficient and survival rate was achieved by using this budding method on the propagation of Qinzhong No.1～4(the survival rate was up to 97%).Effect of variety improvement and large tree crow can be achieved by cutting the mature tree(10～13 a)and budding with the new propagation method.In July of the second year after grafting,the new shoot biomass can be up to 135.4 cm and the tree crow can be 105.6 cm.

低产栗园高接换种改造技术

云南板栗实生栽培面积大, 管理粗放, 结果迟, 产量低, 品质差。采用云南省林业科学院选育的板栗新品系, 对低产板栗园进行嫁接改造, 并采用综合农业技术措施, 加强对改造后栗园管理, 实现了板栗的早实丰产优质高效。为大面积低产栗园改造提供了良种和配套技术, 给板栗产业化形成创造了条件。

昭通市核桃高桩换优综合技术初报

通过多年在昭通市境内对不挂果或挂果但品质差的核桃树开展提质增效试验示范及实践探索,从品种选择、穗条采集与处理、树砧准备、高桩嫁接、接后管理、后期综合管理等方面总结出一套适合昭通市核桃低产林改造的高桩换优综合技术,以期为全市核桃基地品种换优、提质增效提供理论支撑。