Breeding and introduction in northern Hubei of Yuanfeng walnut etc

In order to develop walnut industry in majority of low mountain and hilly area of northern Hubei, such walnut varieties as Yuanfeng are introduced. After 4 years of early screening and 8 years of regional test, a comprehensive comparison of adaptability, nut quality, yield, resistance index of each variety are made. The results indicate that Yuanfeng, Jinlong No.3 and Liaohe No.4 show good adaptability in the hilly areas in North Hubei, its high yield index exceed the control and other varieties; nut quality reach the national standard, some indexes have reached the national class standards. Besides, these three varieties have good drought resistance and barren soil resistance and they are found no serious pest, they’re suitable for popularization in the area.