CN-121970620-A - Method for improving rooting rate and emergence rate of olive cutting seedlings

Abstract

The invention belongs to the technical field of plant cutting propagation, and particularly relates to a method for improving rooting rate and emergence quantity of olive cutting seedlings. In order to solve the technical problems of low rooting rate and small emergence amount of the existing improved olive cutting seedling, the invention uses robust branches of the olive with hidden buds sprouting and growing, preferably annual robust branches as cutting slips to carry out cutting seedling. Experimental results show that for the cutting seedlings of the olive of different varieties, the average rooting rate of seedlings cuttings can reach more than 72%, and for the recognized hard-to-root variety Crohn lycra, the average root number can reach more than 10 without rotting roots during cutting seedlings. Therefore, the method for raising seedlings of the olive has remarkable improvement effects on the quality and the quantity of the olive seedlings, and has important significance on large-area cultivation and efficient planting of the olive.

Inventors

• YANG ZESHEN
• ZHANG BO
• HUANG YONG
• FU YONGPING
• HU WEI
• TONG ZHAOGUO
• CHEN BO
• Ran Qixuan
• HU RONG
• ZHOU JUNLIN
• GAO JUNJIE
• SU GUANGCAN
• CONG LONGYUN
• YAO YINAN
• CHEN TAO
• FENG SHILING
• WANG BIXIA
• DENG LONG
• FAN SHIBING
• SHEN HUI

Assignees

• 凉山州中泽新技术开发有限责任公司
• 玉溪欣森林业开发有限责任公司

Dates

Publication Date

20260505

Application Date

20260130

Claims (10)

1. 1. The method for improving the rooting rate and the emergence quantity of the olive cutting seedlings is characterized in that robust branches growing by the germination of the olive hidden buds are used as cutting slips for cutting seedlings.
2. 2. The method for improving rooting rate and emergence rate of olive cutting seedlings according to claim 1, wherein the cutting is an annual robust branch for germination and growth of olive hidden buds.
3. 3. The method for improving the rooting rate and the emergence rate of the olive cutting seedlings according to claim 1 or 2 is characterized in that the robust branches for the germination and growth of the olive hidden buds are obtained by fixedly planting the olive seedling fine variety cutting nursery, wherein the height of the olive seedling is 1m, the olive seedling is uniformly in a single trunk tree shape, the whole side branches are cut off at the position 5-10 cm away from the trunk to promote the hidden buds to germinate new branches, and the method is used when cutting.
4. 4. The method for improving rooting rate and emergence rate of olive cutting seedlings according to claim 3, wherein excessively dense weak branches, dead branches and pest branches are pruned during the growth period of the olive sapling branches, branches on a cutting nursery tree are pruned at one time during each cutting, and the sapling on a pile is stimulated to germinate new branches to lay a foundation for seedling.
5. 5. The method for improving the rooting rate and the emergence rate of olive cutting seedlings according to claim 1 or 2 is characterized in that the thickness of cutting bars is 0.2-0.4 cm, branches are cut into qualified cutting bars, the upper ends of the cutting bars are provided with 1 pair of leaves, the lower ends of the cutting bars are cut at positions close to a distance node, the distance node at the upper ends is 0.2-0.4 cm, and cut openings are cut flat.
6. 6. The method for improving the rooting rate and the emergence rate of olive cutting seedlings according to claim 1 or 2, wherein the olive cutting seedlings are soaked in clear water before being subjected to cutting treatment by using a rooting agent.
7. 7. The method for improving the rooting rate and the emergence rate of olive cutting seedlings according to claim 6, wherein the rooting agent is an ABT1 rooting agent, the concentration of the rooting agent is 50-150 ppm, the depth of the rooting agent for soaking the basal part of a cutting is 3-4 cm, and the soaking time of the rooting agent is 3-5 hours.
8. 8. The method for improving the rooting rate and the emergence rate of olive cutting seedlings according to claim 1 or 2, wherein the cutting seedling substrate is coconut husk and perlite with a volume ratio of 1-2:1-2.
9. 9. The method for improving the rooting rate and the emergence rate of the olive cutting seedlings according to claim 1 or 2, wherein at least one of the following is satisfied in the cutting seedling process: the temperature of the air is kept at 20-25 ℃; the soil-inserting temperature is 18-24 ℃; The air humidity is kept above 85% before rooting, and is kept at 75-85% after rooting; the illumination is 10-15 KLX.
10. 10. The method for improving rooting rate and emergence rate of olive cutting seedlings according to any one of claims 1-9, wherein the olive variety is at least one selected from the group consisting of kola pedicel, crotamarind, albola, douguo, hubei planting No. 8, leys, pi Guaer and phora.

Description

Method for improving rooting rate and emergence rate of olive cutting seedlings Technical Field The invention belongs to the technical field of plant cutting propagation, and particularly relates to a method for improving rooting rate and emergence quantity of olive cutting seedlings. Background The olive belongs to evergreen arbor of Olea genus of Oleaceae, and is a tree species used as oil plant and fruit. Along with the rapid development of the olive industry, the planting area of the olive is continuously enlarged, and the demand of improved olive seedlings is also rapidly increased. The continuous guarantee of sufficient fine variety supply is the precondition and foundation for the healthy, stable and rapid development of the olive industry. The fine variety breeding of the olive is mainly bred in a cuttage mode. The cutting propagation step generally comprises selecting branches on a parent tree, treating the cuttings with a rooting agent, and cutting in a greenhouse for seedling. The rooting rate of the cutting seedling method on each variety of the olive is low, generally 20-40%, and the quantity of seedlings is small, so that the industrial requirements and production requirements cannot be met. Therefore, there is a need to develop new methods suitable for cutting seedlings of improved olive varieties, thereby improving the quantity and quality of the cutting seedlings of olive. Disclosure of Invention The invention provides a method for improving the rooting rate and the emergence quantity of cutting seedlings of olea europaea, which aims to solve the technical problems of low rooting rate and less emergence quantity of cutting seedlings of the existing improved olea europaea. In order to achieve the purposes of the application, the technical scheme adopted by the application is as follows: the invention provides a method for improving rooting rate and emergence rate of olive cutting seedling, which uses robust branches growing by germination of olive hidden buds as cutting strips to carry out cutting seedling. Further, the cutting is an annual robust branch for germination and growth of the olive hidden buds. Further, the robust branches for the germination and growth of the hidden buds of the olive are obtained through the steps that after the fixed planting of the improved variety cutting nursery for the seedling of the olive, the height of the olive seedling is 1 meter, the olive seedling is fixed to be dry, the olive seedling is unified into a single trunk tree shape, the whole side branches are cut off at the position 5-10 cm away from the trunk to promote the hidden buds to germinate new branches, and the robust branches are used for cutting. Preferably, the over-dense weak branches, the dead branches and the pest branches are pruned during the growth period of the olive hidden buds, the branches on the cutting nursery tree are pruned at one time during each cutting, and the hidden buds on the reserved piles are stimulated to germinate new branches for the seedling culture to lay a foundation. Further, the time of picking the shoots is selected in the morning, afternoon or in the cloudy day. Further, cutting branches with the thickness of 0.2-0.4 cm are sheared into qualified cutting branches, the upper ends of the cutting branches are provided with 1 pair of blades, the lower ends of the cutting branches are sheared at positions close to the distance sections, the upper ends of the cutting branches are sheared at positions 0.2-0.4 cm away from the distance sections, and the shearing openings are all sheared to be flat. Preferably, the cutting strip is 10-12 cm long. Further, before cutting, the cutting strips are soaked in clear water and then soaked in rooting agent. Preferably, the soaking time of the clean water is 2-4 hours. Further, the rooting agent is ABT No. 1 rooting agent. Preferably, the concentration of the rooting agent is 50-150 ppm. Preferably, the method comprises the steps of, rooting agent for soaking cuttings the depth of the base part is 3-4 cm. Preferably, the rooting agent is soaked for 3-5 hours. Further, the cutting seedling substrate is coconut husk and perlite with the volume ratio of 1-2:1-2. Further, in the cutting seedling raising process, at least one of the following is satisfied: the temperature of the air is kept at 20-25 ℃; Soil-inserting temperature is 18-24 DEG C The air humidity is kept above 85% before rooting, and is kept at 75-85% after rooting. The illumination is 10-15 KLX. Further, the olive variety is selected from at least one of Coratina (Coratina), cronet lycra (Koroneiki), abstrashape (Arbosana), beancurd fruit (Arbequina), EZ-8, laixin (Leccino), pi Guaer (Picual) and Buddha (Frantoio). The method has the beneficial effects that, unlike the traditional cutting seedling, the method uses the robust branches of the olive with the hidden buds sprouting and growing, preferably annual robust branches as cutting slips for cutting seedling. Experi