CN101278624A

CN101278624A - Method for grafting and breeding mulberry seedling

Info

Publication number: CN101278624A
Application number: CNA2007100189066A
Authority: CN
Inventors: 罗先见; 茹甫军; 罗莉莎; 茹海
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-19
Filing date: 2007-10-19
Publication date: 2008-10-08

Abstract

The invention relates to a method for breeding mulberry saplings by grafting, belonging to the method for breeding mulberry trees, in particular to a method for breeding mulberry saplings by grafting mulberry trees. The invention provides a method for industrially breeding mulberry saplings by grafting with short seedling period and high survival rate; the technical proposal is that a mulberry twig of the wild mulberry line is selected as a parental stock, a mulberry scion is grafted on the parental stock which is then placed in a phytotron, and the mulberry saplings are bred in 15 to 25 days. As the wild mulberry line is selected as the parental stock, different mulberry trees with high yield and good quality can be grafted on the parental stock, thus the method can be extensively used for breeding the mulberry trees of different breeds.

Description

A kind of method of grafting and breeding mulberry seedling

Technical field

The invention belongs to the method that mulberry tree breeds, especially the method for mulberry tree grafting and breeding mulberry seedling.

Background content

Planting Sang Yangcan is the traditional sideline production in rural area, particularly in province (city) district of south China, occupies bigger proportion in agricultural avocation.The main feed of silkworm is mulberry leaf, and along with the increase of sericulture quantity, the requirement of mulberry leaf also increases, though by the high mulberry tree of seed selection output, improve the leaf yield of mulberry tree, but can not satisfy the demand of breeding silkworms with mulberry leaf.Increase the mulberry leaf consumption that cocoonery needs in order to adapt to, novel mulberry tree breed more not only, but also to enlarge the cultivated area of mulberry tree.Traditional mulberry tree kind method for planting is to adopt 1 year training seedling, supports tree in 2 years, and the production form of picking leaves in 3 years builds up the mulberry field that mulberry leaf can be provided, and generally needs the time of 3-4.Cultivating mulberry saplings is the key technology of mulberry tree plantation, therefore, many technical staff conduct a research aspect seedling growing process, and have obtained bigger progress, graft seedling growth is to be exactly a kind of ratio of working out seedling-cultivating method faster, and its method is to cultivate stock, preparing nursery bed.The stock that the prior art grafting is used is a seedling, and its weak point is to cultivate the restriction that mulberry sapling will be subjected to season, can only cultivate a collection of nursery stock in general 1 year, and survival rate is low.

Summary of the invention

The technical problem that the present invention solves is: but propose that a kind of growing-seedling period is short, the method for the high batch production grafting and breeding mulberry seedling of survival rate.

The present invention for the technical scheme of technical solution problem is: choosing morus bombycis is that ramulus mori is a stock, and grafting Sang Sui on stock has the stock of Sang Sui to put seedling rearing room grafting then, can breed out mulberry sapling through 15-25 days.

The method that has the stock of Sang Sui to put seedling rearing room grafting of the present invention is: graft tied into a bundle by the 20-30 strain, lies on the fine sand that is covered with one deck 2-5 centimetre, and one deck fine sand one deck graft, the fine sand water content keeps 70-85%.

The method of grafting Sang Sui of the present invention is the method for bud grafting.

The invention has the beneficial effects as follows:

1, choosing morus bombycis is that ramulus mori is a stock, and stock is easily taken root, close energetic with Sang Sui, and the mulberry sapling survival rate is higher than 90%, and the land used of growing seedlings takies few, so seedling cost is low;

2, choosing morus bombycis is that ramulus mori is a stock, can carry out grafting indoor, outdoor, and therefore breeding mulberry seedling method of the present invention can be implemented to grow seedlings throughout the year, has not only shortened growing-seedling period, but also has been suitable for the batch production breeding mulberry seedling;

3, because to choose morus bombycis be stock, the mulberry tree of can grafting different high yield and high quality, the mulberry tree that therefore can be widely used in different cultivars breeds.

Embodiment

Below in conjunction with embodiment the present invention is described in further details.

Embodiment 1

Following seedling-cultivating method is applicable to that in the time of the annual 4-8 month, its method is:

The branch stalwartness is selected in 1 clip mulberry tree scion, and hibernaculum is full, and the annual mulberry branch of no damage by disease and insect, branch diameter are not more than 4 centimetres.

No periods of direct sunlight is selected in 2 stocks and scion storage, in the shade drying, and temperature 5-8 ℃, the place of relative moisture 70%, the wet sand of shop, ground 7-10 cm thick is emitted on standby scion and stock above the sand, covers wet straw, covers thin film again on straw.

3 select stock, and choosing morus bombycis is the stock of kind as bud grafting, and diameter of stock is 0.6-5 centimetre, and length 12-15 centimetre, the usefulness while cutting prevents to dry up.

4 cut stock, and 2-3 centimeters below the stock mouth that shears is cut long 1.8-2 centimetre downwards with budding knife, and the skin of being cut is excised half.

5 cut the bud sheet, select in the scion behind the healthy and strong full bud of not sprouting first cutter leaf scar under the bud of pruning, second cutter is the horizontal partial application of 0.5-0.7 centimeters below bud, reach xylem deeply, the 3rd cutter 0.5-0.6 centimeters above bud is flat to be reached cutter and shifts the second cutter place onto, cuts the bud sheet that can see at 3.

6 insert the bud sheet, and the bud sheet that takes off is affixed on the bud grafting blade, and push point of a knife to, and then the stock sack that cuts is split, insert the stock sack face-to-face with the bud sheet, only expose bud point degree of being with the whole embeddings of bud sheet, again with plastic film from bottom to top bud sheet tighten, tie up sternly, only stay the bud point outside.

7 grafts are cultivated, graft is tied into a bundle by the 20-30 strain, lie on the fine sand that is covered with one deck 2-5 centimetre, one deck fine sand one deck graft, stacking height must not be above 80 centimetre, the fine sand water content keeps 70-85%, is seated in seedling rearing room, promptly breeds out through 15-25 days and takes off gemma to the high 5 centimetres mulberry sapling of bud.

Embodiment 2

Following seedling-cultivating method is applicable to annual 9-in the time in March next year, and its method is:

1, the branch stalwartness is selected in clip mulberry tree scion, and axillalry bud is full, and the annotinous branch of no damage by disease and insect, branch diameter are not more than 4 centimetres.

2, select stock, choosing morus bombycis is the stock of kind as bud grafting, 0.8-5 centimetre of diameter of stock, and length 12-15 centimetre, the usefulness while cutting prevents to dry up.

3, cut stock, 2-3 centimeters below the stock mouth that shears is cut long 1.8-2 centimetre downwards with budding knife.

4, cut the bud sheet, select in the scion behind the healthy and strong full bud of not sprouting, first cutter leaf scar under the bud of pruning, second cutter is the horizontal partial application of 0.5-0.7 centimeters below bud, reach xylem deeply, the 3rd cutter 0.5-0.6 centimeters above bud is flat to be reached cutter and shifts the second cutter place onto, cuts the bud sheet that can see at 3.

5, insert the bud sheet, the bud sheet that takes off is affixed on the bud grafting blade, and push point of a knife to, and then the stock sack that cuts is split, insert the stock sack face-to-face with the bud sheet, only expose bud point degree of being with the whole embeddings of bud sheet, again with plastic film from bottom to top bud sheet tighten, tie up sternly, only stay the bud point outside.

6, graft is cultivated, graft is tied into a bundle by the 20-30 strain, lie on the fine sand that is covered with one deck 2-5 centimetre, the fine sand water content keeps 70-85%, be seated in seedling rearing room, maintained the temperature at 20-25 ℃ in preceding 10 days scion and stock are fully healed, just can breed out through 15-25 days again and take off gemma to the high 5 centimetres mulberry sapling of bud.

Grafting method of the present invention not only is included in the bud grafting described in the foregoing description, and also comprising digs up the roots connects other grafting methods in addition.Adopt bud grafting can save the used mulberry branch of grafting Sang Sui, and simple to operate.

The present invention is behind stock grafting Sang Sui, and when temperature was 20-30 ℃, seedling-growing time was the shortest, and the low then seedling raise period of temperature is just long, and when temperature was lower than 5 ℃, the Sang Sui of grafting then was in hibernation.

The mulberry sapling that breeds out of the present invention, portable are cultivated to the seedbed and are commercial seedling, also mulberry sapling can be grafted directly to mulberry field one and go on foot into the garden.

Claims

1. the method for a grafting and breeding mulberry seedling, it is characterized in that: choosing morus bombycis is that ramulus mori is a stock, grafting Sang Sui on stock has the stock of Sang Sui to put seedling rearing room grafting then, can breed out mulberry sapling through 15-25 days.

2. the method for breeding mulberry seedling according to claim 1 is characterized in that: graft is tied into a bundle by the 20-30 strain, lie on the fine sand that is covered with one deck 2-5 centimetre, one deck fine sand one deck graft, fine sand water content maintenance 70-85%.

3. the method for breeding mulberry seedling according to claim 1, it is characterized in that: the method for described grafting Sang Sui is the method for bud grafting.