Study On Grafting And Pruning Techniques Of The Excellent Lines Of Xanthoceras Sorbifolium

Xanthoceras sorbifolium is a kind of woody oil plant.It has a large area of planting in China.After researching,the oil content of Xanthoceras sorbifolium is 59.5%.It is a kind of bioenergy tree species that has been developed in China in light of the "forest oil integration" strategy.However,the current production of the Xanthoceras sorbifolium is extremely low,which greatly limits the development and promotion of the cranberry fruit industry.Grafting and breeding of superior clonal fruit of Xanthoceras sorbifolium,observe the growth of the grafted fruit by different pruning techniques,The formation of a complete set of plastic technology of the Xanthoceras sorfifolium has important guiding significance for achieving high yield,stable yield and stable development of Xanthoceras sorbifolium.In this paper,a study was conducted on the saplings of Xanthoceras sorbifolium in Chaoyang,Liaoning Province to investigate the effects of different pruning techniques and grafting techniques on the growth of Xanthoceras sorbifolium.Including:the spring and summer grafting of Xanthoceras sorbifolium,and the effects of different grafting seasons on the growth of Xanthoceras sorbifolium were analyzed;Different methods of grafting were performed on Xanthoceras sorbifolium,and the effects of different methods of grafting on the growth of Xanthoceras sorbifolium were analyzed;After the Xanthoceras sorbifolium were grafted,they were pruned and the effects of different methods of pruning and shaping on the growth of Xanthoceras sorbifolium were analyzed.The main conclusions of this study are as follows:The Xanthoceras sorbifolium in Chaoyang,Liaoning Province was covered with spring buds,splicing,cutting and summer T-shaped buds.The results showed that the bud survival rate was 53.5%in spring,the survival rate was 6.67%,the survival rate was 20%,and the survival rate of summer T-shaped bud was 83.48%.The T-shaped bud grafting operation is simple and the grafting efficiency is high.Therefore,the Xanthoceras sorbifolium is suitable for budding in the summer;for the nursery that requires long-distance transportation of the scion,it is recommended to use spring budding.The central stem of the grafted shoots that germinated in the year was dried at the first summer trimming at 50cm-90cm by the end of May and early June,and the stem diameter(23.61mm)at the stem height of 70cm was the maximum,The length of the youngest deputy can reach up to 30.85cm,and the maximum crown can reach 60.56cm..The topping of its shoots was carried out.After topping,the diameter of the main stem of the main stem was 20.63mm larger than that of the untreated new shoot 19.90mm.It is beneficial to the growth of the main trunk of Xanthoceras sorbifolium.From the end of June to mid-July,the number of female flowers increased to an average of 3 after secondary summer pruning,and the number of branches increased to an average of 4 and a second summer pruning was necessary.