Method for raising sapling of dwarfing interstock Nanguo pear

Abstract

The invention provides a nursery sock growing method for dwarfed central stake Nanguo pear trees, comprising cultivating root stake sprout using Mountain pear or Du pear seeds, dwarfing central stake bud or grafting the bough to the root stake, so as to cultivate dwarfed intermediate stake sprout, then grafting high grade Nanguo pear tree bud or bough onto the stem of the intermediate stake sprout, so as to cultivate dwarfed intermediate stake Nanguo pear tree sprout, the invention can facilitate early flowering and early fruit.

Description

technical field [0001] The invention belongs to the technical field of fruit tree seedling cultivation, in particular to a seedling cultivation method of dwarfed middle stock Nanguo pear seedlings. Background technique [0002] Nanguo pear is a special pear variety in Anshan area. It belongs to the famous, special and high-quality fruit encouraged by the state. It has a broad market and attractive prospects. Among the existing Nanguo pear production and cultivation techniques, the arborization root Nanguo pear saplings are used. The seedling raising method of this kind of sapling is: at first cultivate the seedlings as the root stock seedlings of grafting Nanguo pears after sowing with the seeds of Sorbus pears or Du pears, that is, the so-called arborization stock seedlings, and then graft Nanguo pears on the root stock seedlings. The fruit pear scion is cultivated into an arborization anvil Nanguo pear sapling after the buds germinate. This kind of sapling consists of tw...

AI Technical Summary

Problems solved by technology

[0003] One is that the results are late and the income is slow. Practice has proved that the orchard built with this kind of arborization root Nanguo pear saplings will have a fruiting period of more than five years, and it will take more than 10 years to enter the high-yield period. Therefore, the effect is slow, which is not conducive to the production of Nanguo pear. develop

[0004] The second is that due to the late fruiting of Nanguo pears on Qiao Huazhen, the period for the selection and purification of Nanguo pear strains is too long. Even if an excellent strain is selected, it is difficult to promote it quickly, which affects the optimization of Nanguo pear strains.

[0005] The third is that the adult trees are tall, inconvenient to manage, and the production management technology is complicated, so it is difficult to popularize and apply various advanced technologies

[0006] Fourth, the phenomenon of big and small years is serious, and the output is low and unstable; the quality of fruit is uneven, and it is difficult to implement standardized production

[0007] In the 1980s, the disease-resistant Pyrus dwarf rootstock PDR was selected through identification and trial planting in my country. 54 , S 5 , Zhongai No. 1, which showed the advantages of dwarfing pear varieties, early fruiting, and early high yield. Later, applied research was carried out on Zaosu pears, Jinfeng pears and other varieties, and good results were obtained (see editor-in-chief Jia Jingxian "Pear Tree Dwarfing and Close Planting Cultivation" book), but did not test on Nanguo pear tree