“Yan An No.1†is a high-resistance apple anthesis rootstock selected from the natural hybrids of chicken crowns in the Institute of Fruit Research of Yantai Academy of Agricultural Sciences. In 1995, researchers used it as an interstock grafted Changfu No. 2 variety and established a test garden of 5 mu. After more than 10 years of cultivation experiments, the grafted Changfu No. 2 apple tree trunk was very slightly susceptible to the disease, while the control tree ringworm disease was spread over the branches. Since 2000, researchers have conducted systematic experiments using the indicators of plant botany, biological characteristics, fruit economic traits, and incidence of rotundus et al. The results of regional trials showed that they had good grafting affinity with J. edodes, J. hirsutum tea, F. citrifolia 3, J. Fuji and other Fuji varieties. The plant growth was robust, no foot and no foot phenomenon occurred, and the incidence of stem bromreosis was significantly lower than conventional. Sea bream anvil Fuji plant. The results showed that this is an anvil rootstock with high resistance to apple ringworm, suitable for large-scale promotion in Fuji apple suitable areas. In 2007, the stock was approved by the experts organized by the Science and Technology Bureau of Yantai City. In 2009, it was approved by the Shandong Crop Variety Approval Committee, and it was approved as “Nan Yin No. 1â€. Usage: As an intermediate stock of Fuji seedlings, an anvil length of 60 cm is appropriate. The base anvil can use octagonal sea bream, flat wolfberry sweet tea and so on.
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