CN110754281A - Improved variety strong seedling cultivation method for early bearing walnut grafted seedlings - Google Patents
Improved variety strong seedling cultivation method for early bearing walnut grafted seedlings Download PDFInfo
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- CN110754281A CN110754281A CN201911156788.4A CN201911156788A CN110754281A CN 110754281 A CN110754281 A CN 110754281A CN 201911156788 A CN201911156788 A CN 201911156788A CN 110754281 A CN110754281 A CN 110754281A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G2/00—Vegetative propagation
- A01G2/30—Grafting
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Abstract
The invention provides a good variety strong seedling cultivation method of early bearing walnut grafted seedlings, which comprises the following steps of (1) preparing soil; (2) preparing the rootstock: selecting walnut wild seedlings as stocks; (3) pretreatment of grafted seedlings: taking the young walnut branches to be grafted as scions and soaking the scions in a pretreatment solution; the pretreatment solution comprises, by weight, 2-5 parts of vitamin B12, 15-20 parts of indoleacetic acid and 5-10 parts of citric acid; (4) grafting; (5) soaking; (6) and (4) transplanting. The invention provides a good variety strong seedling cultivation method of early bearing walnut grafted seedlings, which adopts bud grafting, and the grafted seedlings are soaked in a special pretreatment solution; soaking the grafted walnut seedlings in a rooting powder solution; finally, the grafting survival rate reaches more than 98.5 percent.
Description
Technical Field
The invention relates to the technical field of nursery stock vegetative propagation, in particular to a good-variety strong-seedling cultivation method of early-bearing walnut grafted seedlings.
Background
The walnut is also called walnut and walnut, and is a plant of the family Juglandaceae. It is also called four-big-dried fruit in the world together with almond, cashew nut and hazelnut. The walnut has rich nutritive value and is reputed by 'Wansui', 'Changshou' and 'health preserving treasure'. Walnut kernel contains rich nutrients, protein content is about 15%, and fat content is 70%, wherein 86% of fat is unsaturated fatty acid, and contains various trace elements and minerals such as calcium, phosphorus, iron and the like necessary for human body, and various vitamins such as carotene, vitamin B1, B2 and the like. Is beneficial to human body. Is one of nut foods which are deeply favored by common people. The walnut has the functions of tonifying kidney, securing essence, warming lung, relieving asthma, loosening bowel to relieve constipation and the like. By eating the walnut for a long time, the probability of suffering from depression, breast cancer and diabetes can be reduced. However, the grafting survival rate in the existing walnut planting method is high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a good variety strong seedling cultivation method of early bearing walnut grafted seedlings, and the grafting survival rate reaches more than 98.5%.
The invention is realized by the following steps:
the invention provides a good variety strong seedling cultivation method of early bearing walnut grafted seedlings, which comprises the following steps:
step 1, soil preparation;
step 2, stock preparation: selecting walnut wild seedlings as stocks;
step 3, pretreatment of grafted seedlings: taking the young walnut branches to be grafted as scions and soaking the scions in a pretreatment solution; the pretreatment solution comprises, by weight, 2-5 parts of vitamin B12, 15-20 parts of indoleacetic acid and 5-10 parts of citric acid;
step 4, grafting: adopting bud grafting to obtain grafted walnut seedlings;
step 5, soaking: soaking the grafted walnut seedlings in a rooting powder solution;
step 6, transplanting: transplanting the walnut seedlings after soaking treatment.
Preferably, the fertile soil is selected in the step 1, namely, the hills, the slope-slowing lands, the terrace lands or the ditch terrace lands with good drainage and exposed to the sun at the altitude of 800-1800 meters, sunny slopes or half slopes with sufficient illumination, sandy loam, light loam or loam with deep soil layers and good permeability are selected, and the underground water level is below 2 meters.
Preferably, the preparation of the rootstock in the step 2 specifically comprises: removing growing points and heart leaves of wild walnut seedlings, vertically and downwards cutting a crack between two cotyledons, and taking the cut surface as a stock after the cut surface is flat.
Preferably, the grafting selection tool in the step 4 is a double-edged grafting knife, the treated rootstock and the scion are grafted, namely, the double wedge surfaces of the scion are lightly inserted by aligning with the cuts of the rootstock, the graft openings of the scion and the rootstock are ensured to be aligned, the two cuts are tightly attached, and the joint part of the scion and the rootstock is tightly wound and tightened by using a sealing film.
Preferably, the rooting powder solution in the step 5 comprises one or more of α -naphthylacetic acid, indolebutyric acid, indoleacetic acid or ABT rooting powder.
Preferably, the soaking time in the step 5 is 3-12 hours.
Preferably, the transplanting in the step 6 is firstly carried out in a greenhouse, and then is carried out between fields for planting. Pruning and conventional field management are carried out during field planting.
The invention has the following beneficial effects:
the invention provides a good variety strong seedling cultivation method of early bearing walnut grafted seedlings, which adopts bud grafting, and the grafted seedlings are soaked in a special pretreatment solution; soaking the grafted walnut seedlings in a rooting powder solution; finally, the grafting survival rate reaches more than 98.5 percent. The inventor unexpectedly finds that the grafted seedlings are soaked in a special pretreatment solution, and the pretreatment solution comprises 2-5 parts by weight of vitamin B12, 15-20 parts by weight of indoleacetic acid and 5-10 parts by weight of citric acid, so that the grafting survival rate can be greatly improved.
Detailed Description
Example 1
The improved variety strong seedling cultivation method of the early bearing walnut grafted seedlings comprises the following steps:
step 1, soil preparation: selecting fertile soil and places with sufficient sunlight, and deeply ploughing the soil before planting; applying quicklime before planting the acid soil, and deeply ploughing the soil; selecting a hillside, a gentle slope land, a terrace land or a ditch terrace land with good drainage and exposed to the sun at the elevation of 800-1800 m, illuminating a sunny slope or a half slope sufficiently, deep soil layer, sandy loam, light loam or loam with good permeability, and planting at the underground water level below 2 m;
step 2, stock preparation: selecting walnut wild seedlings as stocks;
step 3, pretreatment of grafted seedlings: taking the young walnut branches to be grafted as scions and soaking the scions in a pretreatment solution; the pretreatment solution comprises 3 parts of vitamin B12, 18 parts of indoleacetic acid and 7 parts of citric acid in parts by weight; the soaking time is 10 h.
Step 4, grafting: adopting bud grafting to obtain grafted walnut seedlings; adopting walnut leaf seedling for grafting, and cutting off stock buds at a position of 1cm on a leaf stalk of a seed for cleft grafting when the young bud of the seed is to show a true leaf; and grafting the treated rootstock and the scion, namely aligning the double wedge surfaces of the scion with the cuts of the rootstock and lightly inserting the scion into the cuts of the rootstock to ensure that the grafting ports of the scion and the rootstock are aligned, so that the two cuts are tightly attached, and then tightly winding and binding the joint part of the scion and the rootstock by using a sealing film.
And step 5, soaking, namely soaking the grafted walnut seedlings in a rooting powder solution for 6 hours, wherein the rooting powder solution comprises α -naphthylacetic acid and indolebutyric acid.
Step 6, transplanting: transplanting the walnut seedlings after soaking treatment. When transplanting, the seedlings are firstly transplanted into a greenhouse and then transplanted among fields for field planting. Pruning and conventional field management are carried out during field planting. The growth period of young shoots and the development period of fruits, and sufficient water supply; applying a base fertilizer before leaf falling after harvesting, wherein 100-200 kg of high-quality organic fertilizer is applied to each adult tree; the suitable period of top dressing is before flowering, the young fruit is enlarged and the fruit is hardened, and the core is 3 periods, and the top dressing is generally 0.8-1 kg of Tianqiang nitric phosphate fertilizer applied to each plant each time; spraying fertilizer to leaf surface in flowering period, fast growth period, differentiation period and harvesting period, with the sprayed fertilizer being selected from 0.1-0.2% boric acid, 0.5-1% ammonium molybdate and 0.3-0.4% copper sulfate.
Example 2
The improved variety strong seedling cultivation method of the early bearing walnut grafted seedlings comprises the following steps:
step 1, soil preparation: selecting fertile soil and places with sufficient sunlight, and deeply ploughing the soil before planting; applying quicklime before planting the acid soil, and deeply ploughing the soil; selecting a hillside, a gentle slope land, a terrace land or a ditch terrace land with good drainage and exposed to the sun at the elevation of 800-1800 m, illuminating a sunny slope or a half slope sufficiently, deep soil layer, sandy loam, light loam or loam with good permeability, and planting at the underground water level below 2 m;
step 2, stock preparation: selecting walnut wild seedlings as stocks;
step 3, pretreatment of grafted seedlings: taking the young walnut branches to be grafted as scions and soaking the scions in a pretreatment solution; the pretreatment solution comprises 2 parts of vitamin B12, 20 parts of indoleacetic acid and 5 parts of citric acid in parts by weight; the soaking time is 6 h.
Step 4, grafting: adopting bud grafting to obtain grafted walnut seedlings; adopting walnut leaf seedling for grafting, and cutting off stock buds at a position of 1cm on a leaf stalk of a seed for cleft grafting when the young bud of the seed is to show a true leaf; and grafting the treated rootstock and the scion, namely aligning the double wedge surfaces of the scion with the cuts of the rootstock and lightly inserting the scion into the cuts of the rootstock to ensure that the grafting ports of the scion and the rootstock are aligned, so that the two cuts are tightly attached, and then tightly winding and binding the joint part of the scion and the rootstock by using a sealing film.
Step 5, soaking: soaking the grafted walnut seedlings in a rooting powder solution; the rooting powder solution comprises the rooting powder which is indolebutyric acid and indoleacetic acid; the soaking time is 3 h.
Step 6, transplanting: transplanting the walnut seedlings after soaking treatment. When transplanting, the seedlings are firstly transplanted into a greenhouse and then transplanted among fields for field planting. Pruning and conventional field management are carried out during field planting. The growth period of young shoots and the development period of fruits, and sufficient water supply; applying a base fertilizer before leaf falling after harvesting, wherein 100-200 kg of high-quality organic fertilizer is applied to each adult tree; the suitable period of top dressing is before flowering, the young fruit is enlarged and the fruit is hardened, and the core is 3 periods, and the top dressing is generally 0.8-1 kg of Tianqiang nitric phosphate fertilizer applied to each plant each time; spraying fertilizer to leaf surface in flowering period, fast growth period, differentiation period and harvesting period, with the sprayed fertilizer being selected from 0.1-0.2% boric acid, 0.5-1% ammonium molybdate and 0.3-0.4% copper sulfate.
Example 3
The improved variety strong seedling cultivation method of the early bearing walnut grafted seedlings comprises the following steps:
step 1, soil preparation: selecting fertile soil and places with sufficient sunlight, and deeply ploughing the soil before planting; applying quicklime before planting the acid soil, and deeply ploughing the soil; selecting a hillside, a gentle slope land, a terrace land or a ditch terrace land with good drainage and exposed to the sun at the elevation of 800-1800 m, illuminating a sunny slope or a half slope sufficiently, deep soil layer, sandy loam, light loam or loam with good permeability, and planting at the underground water level below 2 m;
step 2, stock preparation: selecting walnut wild seedlings as stocks;
step 3, pretreatment of grafted seedlings: taking the young walnut branches to be grafted as scions and soaking the scions in a pretreatment solution; the pretreatment solution comprises, by weight, 5 parts of vitamin B12, 15 parts of indoleacetic acid and 10 parts of citric acid; the soaking time is 12 h.
Step 4, grafting: adopting bud grafting to obtain grafted walnut seedlings; adopting walnut leaf seedling for grafting, and cutting off stock buds at a position of 1cm on a leaf stalk of a seed for cleft grafting when the young bud of the seed is to show a true leaf; and grafting the treated rootstock and the scion, namely aligning the double wedge surfaces of the scion with the cuts of the rootstock and lightly inserting the scion into the cuts of the rootstock to ensure that the grafting ports of the scion and the rootstock are aligned, so that the two cuts are tightly attached, and then tightly winding and binding the joint part of the scion and the rootstock by using a sealing film.
And step 5, soaking, namely soaking the grafted walnut seedlings in a rooting powder solution for 12 hours, wherein the rooting powder solution comprises α -naphthylacetic acid and indoleacetic acid.
Step 6, transplanting: transplanting the walnut seedlings after soaking treatment. When transplanting, the seedlings are firstly transplanted into a greenhouse and then transplanted among fields for field planting. Pruning and conventional field management are carried out during field planting. The growth period of young shoots and the development period of fruits, and sufficient water supply; applying a base fertilizer before leaf falling after harvesting, wherein 100-200 kg of high-quality organic fertilizer is applied to each adult tree; the suitable period of top dressing is before flowering, the young fruit is enlarged and the fruit is hardened, and the core is 3 periods, and the top dressing is generally 0.8-1 kg of Tianqiang nitric phosphate fertilizer applied to each plant each time; spraying fertilizer to leaf surface in flowering period, fast growth period, differentiation period and harvesting period, with the sprayed fertilizer being selected from 0.1-0.2% boric acid, 0.5-1% ammonium molybdate and 0.3-0.4% copper sulfate.
Comparative example 1
In this comparative example, the pretreatment solution described in step 3 was replaced with: comprises 3 parts of vitamin B12 and 18 parts of indoleacetic acid by weight; the rest of the procedure was the same as in example 1.
Comparative example 2
In this comparative example, the pretreatment solution described in step 3 was replaced with: the additive comprises 7 parts by weight of citric acid; the rest of the procedure was the same as in example 1.
Experimental example 1
1. Statistics on the grafting survival rate, the average number of roots per plant, the transplanting survival rate, and the like of examples 1 to 3 and comparative examples 1 to 2 are shown in table 1:
TABLE 1
| Rooting rate | |
| Example 1 | 98.5％ |
| Example 2 | 95.4％ |
| Example 3 | 94.7％ |
| Comparative example 1 | 36.1％ |
| Comparative example 2 | 35.3％ |
As can be seen from table 1, the improved variety strong seedling cultivation method of early bearing walnut grafted seedlings provided by the invention adopts bud grafting, and the grafted seedlings are soaked in a special pretreatment solution; soaking the grafted walnut seedlings in a rooting powder solution; finally, the grafting survival rate reaches more than 98.5 percent.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A good variety strong seedling cultivation method of early bearing walnut grafted seedlings is characterized by comprising the following steps:
step 1, soil preparation;
step 2, stock preparation: selecting walnut wild seedlings as stocks;
step 3, pretreatment of grafted seedlings: taking the young walnut branches to be grafted as scions and soaking the scions in a pretreatment solution; the pretreatment solution comprises, by weight, 2-5 parts of vitamin B12, 15-20 parts of indoleacetic acid and 5-10 parts of citric acid;
step 4, grafting: adopting bud grafting to obtain grafted walnut seedlings;
step 5, soaking: soaking the grafted walnut seedlings in a rooting powder solution;
step 6, transplanting: transplanting the walnut seedlings after soaking treatment.
2. The method as claimed in claim 1, wherein the step 1 is performed by selecting fertile soil, preferably selecting bare footings, gentle slopes, terrace lands or ditch terrace lands with good drainage and high altitude of 800-1800 m, sunny slope or half slope with sufficient illumination, deep soil layer, sandy loam, light loam or loam with good permeability, and underground water level below 2 m.
3. The improved variety strong seedling cultivation method of early bearing walnut grafted seedlings according to claim 1, wherein the preparation of the rootstock in the step 2 specifically comprises: removing growing points and heart leaves of wild walnut seedlings, vertically and downwards cutting a crack between two cotyledons, and taking the cut surface as a stock after the cut surface is flat.
4. The method for inhibiting browning of the kiwi fruit explant according to claim 1, wherein the soaking time in step 3 is 6-12 hours.
5. The method for inhibiting browning of the exotic walnut explant according to claim 1, wherein the grafting selection tool in the step 4 is a double-edged grafting knife, the treated rootstock and the scion are grafted, namely, the double wedge surfaces of the scion are lightly inserted into the cuts of the rootstock, the grafting cuts of the scion and the rootstock are aligned, the two cuts are tightly attached, and the joint of the scion and the rootstock is tightly wound and tightened by using a sealing film.
6. The method of inhibiting browning of a kiss nut explant according to claim 1, wherein said rooting powder solution in step 5 comprises a combination of one or more of said rooting powder being α -naphthylacetic acid, indolebutyric acid, indoleacetic acid or ABT rooting powder.
7. The method for inhibiting browning of the kiwi fruit explant according to claim 1, wherein the soaking time in step 5 is 3-12 hours.
8. The method for inhibiting browning of the exotic walnut explant of claim 1, wherein the step 6 of transplanting is carried out by transplanting to a greenhouse and then transplanting to field for field planting.
9. The method for inhibiting browning of kiskatom walnut explants of claim 8 wherein said step 6 is conducted during field planting with pruning and conventional field management.
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