CN101103681A

CN101103681A - Grafting technology for inserting walnut scion into stock cortex

Info

Publication number: CN101103681A
Application number: CNA2007100164552A
Authority: CN
Inventors: 陈吴海; 段遵国; 郭晓东; 魏淑琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-03
Filing date: 2007-08-03
Publication date: 2008-01-16
Anticipated expiration: 2027-08-03
Also published as: CN100542395C

Abstract

A novel technology of walnut bark grafting comprises the inserting of the cut scion between the cortex and xylem of the rootstock and the tying bandaging with a plastic film, which is characterized in that after the scion is inserted into the rootstock cortex, one stroke of cross-cutting is respectively implemented on the rootstock from the upper and lower 0.5cm of the scion horse auriform section rear end. The rootstock cortex between the upper and lower incisions is taken out from the incision of the lower part, thus a rectangular wound is exposed. At last the tying bandaging with the plastic films is implemented from the scion rear end to the scion top, and the white colour of the wound lower end is exposed. In the invention, the survival rate of walnut bark grafting is high and stable, which can be stabilized at more than 90%. The grafting technology not only can be used for large-scale graft seedling in nursery lands, but also can be applied in the improved varieties head changing of seedling walnut.

Description

A kind of grafting technology for inserting walnut scion into stock cortex

Technical field: the invention belongs to the fruit-tree grafting technical field, relate to a kind of breeding graft technology of walnut

Background technology: the walnut cortex grafting, be applicable to walnut stock hard branch in spring when skin and summer green branch grafting.The method of operating of prior art is: the horse ear shape tangent plane that earlier scion simultaneously is whittled into the about 3cm of length; On stock, select level and smooth one side then; From vertical partial application suitable for reading, reach xylem with grafting knife deeply, the about 2.5cm of length.Then, the scion of cutting is inserted between the cortex and xylem of stock from top to bottom.Insertion depth exposes 0.3cm tangent plane (showing money or valuables one carries unintentionally) with the scion top is advisable, tight with plastic foil bondage wrapping at last.The walnut grafting survival rate, except that the influence of internal factor and external environment factor, itself influences the key factor of graft survival rate especially its grafting method.The grafting method of above-mentioned prior art because " bleeding " of grafting interruption-forming can't be derived, therefore, often causes the survival rate of the slotting skin grafting of walnut very low, and is general only about 10%.

Summary of the invention: the purpose of this invention is to provide a kind of walnut and insert skin grafting new technology, in order to overcome the existing existing above-mentioned drawback of grafting technology for inserting walnut scion into stock cortex effectively.The technology of the present invention is to improve to realize on the basis of existing grafting technology for inserting walnut scion into stock cortex, it comprises that the scion of will cut inserts between the cortex and xylem of stock from top to bottom, insertion depth exposes 0.3cm tangent plane and tight with the plastic film wrapping with the scion top, it is characterized in that after the stock cortex is inserted in scion, also will be with stock from each the horizontal partial application of 0.5 centimeters up and down of scion horse ear shape tangent plane tail end, kerf width is wideer slightly than scion horse ear shape tangent plane, notch depth is with till cutting off the stock cortex, it is wooden not injure scion cortex and stock, from lower cut-out the stock cortex between the last lower cut is chosen then, expose the rectangle wound, wrap up from the scion tail end to the scion top with the plastic film bondage more at last, and the wound lower end is showed money or valuables one carries unintentionally.

The technology of the present invention, by with stock from up and down each the horizontal partial application of 0.5 centimeters of scion horse ear shape tangent plane tail end, from lower cut-out the stock cortex between the last lower cut is chosen, and when wrapping, the wound lower end is showed money or valuables one carries unintentionally, " bleeding " derived, thereby it is high and stablize to make walnut insert the skin graft survival rate, and survival rate is stabilized in more than 90%.This grafting method can not only be used for the extensive graft seedling growth in garden ground, and the breeding of the walnut that can also be applied to grow directly from seeds changes head.

Description of drawings: accompanying drawing is that walnut of the present invention is inserted skin grafting step schematic diagram

Embodiment:

Embodiment 1: summer green branch grafting:

(1) grafting time: Shandong Province May 20 to June 30

(2) gather scion: select the semi-lignified developmental branch from adopting the fringe tree, be about to blade after scion is cut and cut from base portion 1.5-2.0 centimeters.The scion collection capacity will be ready to gunnysack when big, and covers the scion of adopting with wet gunnysack at any time, to prevent its dehydration.

(3) scion is deposited: require now to adopt existing usefulness, deposited at most after the scion collection 3-4 days, deposit way: endways being put in the container that fills clear water in good back, about 10 centimetres of immersed depths are tied in scion.The first half is built with wet gunnysack, is put in shady and cool place then.

(4) grafting: intercept about the 10 centimetres scion that contain full leaf bud of bag or mixed bud, shown in steps A among the figure, scion simultaneously is whittled into the horse ear shape tangent plane of the about 3cm of length; On stock, select level and smooth one side, shown in step B among the figure, from vertical partial application suitable for reading, reach xylem deeply, the about 2.5cm of length with grafting knife; The scion of cutting is inserted from top to bottom between the cortex and xylem of stock, shown in step C among the figure, insertion depth exposes 0.3cm tangent plane (showing money or valuables one carries unintentionally) with the scion top and is advisable; From up and down each the horizontal partial application of 0.5 centimeters of scion horse ear shape tangent plane tail end, shown in step D among the figure, kerf width is wideer slightly than scion horse ear shape tangent plane, and notch depth is with till cutting off the stock cortex, and it is wooden not injure scion cortex and stock; From lower cut-out the stock cortex between the last lower cut is chosen then, shown in step e among the figure, exposed the rectangle wound; Tight with plastic film bondage wrapping from the scion tail end again to the scion top, shown in step F among the figure, and the wound lower end is showed money or valuables one carries unintentionally, then grafting is finished.

Embodiment 2: spring stiff wood grafting:

(1) grafting time: in the Shandong Province about April 10.

(2) gather scion: the collection of improved variety of walnut fringe bar should be carried out in mid-January in late December to the coming year, promptly the sterilization sawdust equal-volume mixing of 60%-65% after adopting down with humidity, the packing of double-layer plastic cloth is preserved moisture, be stored in-standby in the constant humidity freezer of 3-0 ℃, can store to May in the coming year, later stage should note checking scion bud subcase, suitably turns down temperature.In addition, scion requires pure breeding fringe bar full for enriching, anosis worm.

(3) stock should be selected: the common walnut seedling of selecting 1-3 to give birth to, and well-grown, and no damage by disease and insect, the above 10cm of the base portion diameter 1.5-3cm of place makes stock, and grafting was cut anvil in the above 20cm of stock base portion place level in preceding 15-20 days and is discharged bleeding.

(4) to be selected in that stock sprouts to leaf stretching period be best to grafting period, and the branch section that intercept 10-15 centimetre, has a 2-3 full bud is done scion, shown in steps A among the figure, scion simultaneously is whittled into the horse ear shape tangent plane of the about 3cm of length; On stock, select level and smooth one side, shown in the step B, from vertical partial application suitable for reading, reach xylem deeply among the figure, the about 2.5cm of length with grafting knife; The scion of cutting is inserted from top to bottom between the cortex and xylem of stock, shown in the step C, insertion depth exposes 0.3cm tangent plane (showing money or valuables one carries unintentionally) with the scion top and is advisable among the figure; From up and down each the horizontal partial application of 0.5 centimeters of scion horse ear shape tangent plane tail end, shown in the step D, kerf width is wideer slightly than scion horse ear shape tangent plane among the figure, and notch depth is with till cutting off the stock cortex, and it is wooden not injure scion cortex and stock; From lower cut-out the stock cortex between the last lower cut is chosen, shown in the step e, exposed the rectangle wound among the figure; Tight from the scion tail end to the scion top again with plastic film bondage wrapping, shown in the step F, the wound lower end is showed money or valuables one carries unintentionally among the figure, then grafting is finished.

Claims

1. a walnut is inserted skin grafting new technology, it comprises that the scion of will cut inserts between the cortex and xylem of stock from top to bottom, insertion depth exposes 0.3cm tangent plane and tight with the plastic film wrapping with the scion top, it is characterized in that after the stock cortex is inserted in scion, also will be with stock from each the horizontal partial application of 0.5 centimeters up and down of scion horse ear shape tangent plane tail end, kerf width is wideer slightly than scion horse ear shape tangent plane, notch depth is with till cutting off the stock cortex, it is wooden not injure scion cortex and stock, from lower cut-out the stock cortex between the last lower cut is chosen then, expose the rectangle wound, wrap up from the scion tail end to the scion top with the plastic film bondage more at last, and the wound lower end is showed money or valuables one carries unintentionally.