CN103766143B - The subsides grafting technology of the two bevel high-low-position of a kind of Chinese torreya - Google Patents

Abstract

The invention discloses the subsides grafting technology of the two bevel high-low-position of a kind of Chinese torreya, this subsides grafting technology is the long bevel of stock for from the bottom up to truncation surface, inwardly splay, and at the base portion of the long bevel of stock, have along Vertical dimension incision between bark and xylem that stock is short cuts mouth, the long bevel of scion and the long bevel of stock amplexiform, the short bevel of scion inserts the short new paragon grafting of cutting mouth of stock, not only make scion and stock wedging degree high, contact tightr, healing ability is stronger, also make scion perpendicular upwards, can not partially be preced with after surviving; Scion only retains branch terminal bud 4-5 sheet leaf, reduces the transpiration of blade, thus reduces moisture loss; Scion of the present invention only remains the terminal bud of about about 1cm, shortens the distance between stock and terminal bud, thus strengthens the rudiment ability of terminal bud, and graft survival rate is up to 98%; Chinese torreya graft is upright, and tree crown is not preced with partially, and rudiment ability is strong, can capping fast.

Description

The subsides grafting technology of the two bevel high-low-position of a kind of Chinese torreya

Technical field

The present invention relates to Chinese torreya graft technology, be specifically related to the subsides grafting technology of the two bevel high-low-position of a kind of Chinese torreya.

Background technology

Chinese torreya ( torreya grandis) belong to taxaceae (Taxaceae) Chinese torreya genus (Torreya Arn) gymnosperm, aiphyllium, dioecism.It is logging with, medicinal, fruit, oil with and view and admire, afforest multipurpose rare tree, the rare dry fruit of Ye Shi Zhejiang Province characteristic and the woody oleiferous plants crop of good quality and high output.Chinese torreya is that the variation type process of Chinese torreya manually cultivates the improved seeds obtained, and graft seedling growth is the main propagation method of Chinese torreya, and conventional grafting method mainly contains cleft graft, pastes whip grafting, the method for plant propagation with cutting etc.If publication number is the application for a patent for invention of CN1887046, disclose Chinese torreya branch grafting technology, utilize Chinese torreya sapling for stock, in stock, stem Lower Half is mitered into the longitudinal cut slightly with xylem from the top down, for stock otch, within 1 year, raw branch is as scionwood section, scionwood segment length 6-7cm, the long bevel that scionwood section has 3-4cm long, the short bevel that the back side of long bevel has 0.5-1cm long, scionwood Duan Yichang bevel inwardly, short bevel outwardly mode insert in stock otch, then tighten, shelter from heat or light and breed, treat that scionwood section survives, then block the tree crown of stock.This subsides whip grafting only has a stock otch of cutting sth. askew from the top down, although scion is two tangent planes, but scionwood section and stock otch wedging degree deficiency, and scion is oblique grafting, so be also easily partially preced with after surviving, growth after impact cultivation, though reservation tree crown is bred in addition, there is nutrient competition in scionwood section and stock, survival rate is still lower.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of scionwood section and stock otch wedging degree is high, and avoid the nutrient competition of stock and scionwood section, survival rate is higher, the subsides grafting technology of the two bevel high-low-position of the Chinese torreya be not partially preced with after surviving.

The present invention solves the problems of the technologies described above adopted technical scheme: the subsides grafting technology of the two bevel high-low-position of a kind of Chinese torreya, and its step is as follows:

The selection of a, stock and cutting: in annual 2-3 month, the Chinese torreya of the 2-3 that growth selection is vigorous, blocks tree crown at liftoff 10-15cm place, and truncation surface cuts smooth as stock, removing stock side shoot and rudiment; To splay out the long bevel of stock of 2.5-3.0cm to truncation surface, inwardly from the bottom up, angle between the long bevel of stock and vertical plane is 2-6 degree, then the long bevel of this stock base portion, along being cut into the dark short mouth of cutting of stock for 0.5-1.0cm between bark and xylem vertically downward, revise the long bevel of stock and the short mouth of cutting of stock; Two cut after form high-order long, that low level is short 2 otch at stock, the wedging degree of scion and stock can be made to improve, and nutrition and moisture content exchange and facilitate, and scion is not preced with partially;

The selection of b, scion and cutting: annual 2-3 month, good, the colory Chinese torreya elite stand of growth selection, 1 year raw Chinese torreya side shoot that clip terminal bud is full on elite stand is as scionwood section; Scionwood segment length is 4-5cm, and 4-5 sheet leaf is stayed at terminal bud place; In scion side from the top down to base portion, be inwardly mitered into tangent plane long for 3.1-3.6cm, tangent plane be the long bevel of scion of 40-50% scionwood section diameter the most deeply, then the long bevel of scion reverse side from the top down to base portion, be inwardly mitered into tangent plane long for 0.5-1.0cm, tangent plane be the short bevel of scion of 30-40% scionwood section diameter the most deeply; Scion base portion is so just made to be wedge shape;

C, grafting: amplexiform with the long bevel of scion and the long bevel of stock, the short bevel of scion inserts the short mode grafting of cutting mouth of stock, wherein the base portion of scionwood section and the short base portion cutting mouth of stock push against, and the truncation surface 0.1-0.15cm of stock is exposed in the long bevel upper end of scion; Pressure one circle winding wrapping is enclosed with plastic tape is bottom-up by same direction one after grafting; The long bevel of 0.1-0.15cm scion is not affixed with stock and exposes stock top, meaning " showing money or valuables one carries unintentionally ";

D, managing after grafting: avoid direct sunlight, daily water and fertilizer management, prevents wrapping position ponding, removes wrapping plastic tape then, remove shade October then at the beginning of by the end of June to 7 month.

Compared with prior art, the invention has the advantages that the subsides grafting technology of the two bevel high-low-position of a kind of Chinese torreya, this subsides grafting technology is the long bevel of stock for from the bottom up to truncation surface, inwardly splay, and at the base portion of the long bevel of stock, have along Vertical dimension incision between bark and xylem that stock is short cuts mouth, the long bevel of scion and the long bevel of stock amplexiform, the short bevel of scion inserts the short new paragon grafting of cutting mouth of stock, not only make scion and stock wedging degree high, contact tightr, healing ability is stronger, also makes scion perpendicular upwards, can not partially be preced with after surviving; Scion of the present invention only retains branch terminal bud 4-5 sheet leaf, reduces the transpiration of blade, thus reduces moisture loss; The present invention blocks tree crown, and remain 10 ~ 15cm stock length, avoid the nutrient competition of stock and scionwood section, scion can make full use of the growth potential of stock, is conducive to its late growing stage; The present invention removes bevel part, and scion only remains the terminal bud of about about 1cm, shortens the distance between stock and terminal bud, is conducive to the transport of nutriment, thus strengthens the rudiment ability of terminal bud, and graft survival rate is up to 98%; The Chinese torreya graft that the present invention obtains is upright, and tree crown is not preced with partially, and rudiment ability is strong, can capping fast.

Embodiment

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

Embodiment 1

The subsides stem grafting method of the two bevel high-low-position of Chinese torreya, the selection of stock and cutting: in annual 2-3 month, the Chinese torreya of the 2-3 that growth selection is vigorous, blocks tree crown at liftoff 10-15cm place, and truncation surface cuts smooth as stock, removing stock side shoot and rudiment, from the bottom up to truncation surface, inwardly to splay out the long bevel of stock of 2.5cm, the long bevel of stock is upper dark lower shallow tangent plane, angle between the long bevel of stock and vertical plane is 2-6 degree (general tangent plane upper part cuts xylem a little), then at the base portion of the long bevel of this stock, along being cut into deeply for the short mouth of cutting of stock of 1.0cm (is namely xylem in formation one between bark and xylem vertically downward, be outward the otch of bark cortex), revise the long bevel of stock and stock is short cuts mouth, two cut after formed at stock high-order long, 2 otch that low level is short, scion and stock wedging degree improve, the exchange of nutrition and moisture content is convenient, and scion is not preced with partially, the selection of scion and cutting: annual 2-3 month, good, the colory Chinese torreya elite stand of growth selection, 1 year raw Chinese torreya side shoot that clip terminal bud is full on elite stand is as scionwood section, scionwood segment length is 4-5cm, and 4-5 sheet leaf is stayed at terminal bud place, in scion side from the top down to base portion, be inwardly mitered into tangent plane long for 3.6cm, tangent plane be the long bevel of scion of 40-50% scionwood section diameter (about close to scion central point) the most deeply, then at the short bevel of scion that reverse side is mitered into the long 1.0cm of being of tangent plane to base portion, inwardly from the top down, tangent plane is 30-40% scionwood section diameter the most deeply of the long bevel of scion, scion base portion is so just made to be wedge shape, treated scion, keep bevel smooth, preferably can grafting at once, grafting: amplexiform with the long bevel of scion and the long bevel of stock, the short bevel of scion inserts the short mode grafting of cutting mouth of stock, wherein the base portion of scionwood section and the short base portion cutting mouth of stock push against, the truncation surface 0.12cm of stock is just exposed in the long bevel upper end of scion, the long bevel of such scion inwardly amplexiforms on the long bevel of stock and the short bevel of stock, absorb the long bevel of stock and short nutrition and the moisture cutting mouth of stock, the short bevel of scion is also supported exchange at the short enterprising field headquarters of mouth of cutting of stock with amplexiforming, pressure one circle winding wrapping is enclosed with plastic tape is bottom-up by same direction one after grafting, managing after grafting: avoid direct sunlight, daily water and fertilizer management, prevents wrapping position ponding, and remove wrapping plastic tape at the beginning of by the end of June to 7 month then, remove shade October then, graft survival rate can up to 98%.Generally according to the rugosity of stock, cutting grafting can be carried out at stock different parts simultaneously; Within general 2 years, the wooden Chinese torreya of life selects 1 to cut position, and within 3 years, the wooden Chinese torreya of life can select 2-3 to cut position, and stock is thicker, and cutting portion position can be selected more.

Embodiment 2

Substantially the same manner as Example 1, difference be the long bevel of stock deeply for 3.0cm, stock is short, and to cut mouth dark be 0.5cm, and the long bevel of scion is long is 3.6cm, and the short bevel of scion is long is 0.5cm, and the long bevel of scion exposes stock otch 0.1cm.

Embodiment 3

Substantially the same manner as Example 1, difference be the long bevel of stock deeply for 2.75cm, stock is short, and to cut mouth dark be 0.6cm, and the long bevel of scion is long is 3.5cm, and the short bevel of scion is long is 0.6cm, and the long bevel of scion exposes stock otch 0.15cm.

Embodiment 4

Substantially the same manner as Example 1, difference be the long bevel of stock deeply for 2.5cm, stock is short, and to cut mouth dark be 0.5cm, and the long bevel of scion is long is 3.1cm, and the short bevel of scion is long is 0.5cm, and the long bevel of scion exposes stock otch 0.1cm.

Claims (1)

1. a subsides grafting technology for the two bevel high-low-position of Chinese torreya, its step is as follows:

The selection of a, stock and cutting: in annual 2-3 month, the Chinese torreya of the 2-3 that growth selection is vigorous, blocks tree crown at liftoff 10-15cm place, and truncation surface cuts smooth as stock, removing stock side shoot and rudiment; To splay out the long bevel of stock of 2.5-3.0cm to truncation surface, inwardly from the bottom up, angle between the long bevel of stock and vertical plane is 2-6 degree, then the long bevel of this stock base portion, along being cut into the dark short mouth of cutting of stock for 0.5-1.0cm between bark and xylem vertically downward, revise the long bevel of stock and the short mouth of cutting of stock;

The selection of b, scion and cutting: annual 2-3 month, good, the colory Chinese torreya elite stand of growth selection, 1 year raw Chinese torreya side shoot that clip terminal bud is full on elite stand is as scionwood section; Scionwood segment length is 4-5cm, and 4-5 sheet leaf is stayed at terminal bud place; In scion side from the top down to base portion, be inwardly mitered into tangent plane long for 3.1-3.6cm, tangent plane be the long bevel of scion of 40-50% scionwood section diameter the most deeply, then the long bevel of scion reverse side from the top down to base portion, be inwardly mitered into tangent plane long for 0.5-1.0cm, tangent plane be the short bevel of scion of 30-40% scionwood section diameter the most deeply;

C, grafting: amplexiform with the long bevel of scion and the long bevel of stock, the short bevel of scion inserts the short mode grafting of cutting mouth of stock, wherein the base portion of scionwood section and the short base portion cutting mouth of stock push against, and the truncation surface 0.1-0.15cm of stock is exposed in the long bevel upper end of scion; Pressure one circle winding wrapping is enclosed with plastic tape is bottom-up by same direction one after grafting;

D, managing after grafting: avoid direct sunlight, daily water and fertilizer management, prevents wrapping position ponding, removes wrapping plastic tape then, remove shade October then at the beginning of by the end of June to 7 month.