CN103749288A

CN103749288A - Stevia rebaudiana mesh enclosure hybrid method

Info

Publication number: CN103749288A
Application number: CN201410060429.XA
Authority: CN
Inventors: 何克勤; 林平; 胡能兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-02-24
Filing date: 2014-02-24
Publication date: 2014-04-30

Abstract

(b)The invention discloses a stevia rebaudiana mesh enclosure hybrid method which comprises the steps of planting parents of stevia rebaudiana hybridized combinations in pairs at fixed points according to the structural design of a mesh enclosure, covering the both parents with the mesh enclosure before blooming, and flapping and vibrating the parent plants in the mesh enclosure from the outer side of the nylon mesh enclosure every day in the full-bloom stage to promote pollination and hybridization. With the adoption of the method, the detailed operation of cross pollination is changed into a simple labor operation, and the method is simple and feasible, and is easy to popularize. (/b).

Description

A kind of stevia guard hybrid method

Technical field

a stevia guard hybrid method, relates to the crossbreeding technology of stevia, says more specifically a kind of method of utilizing nylon guard to carry out stevia pollination hybridization for instrument.

Background technology

stevia is the sugar [yielding of a kind of composite family, because flower is little, floral organ is intensive and attachment region connects fragile, if artificial hybridization adopts traditional single flower hybridization, single flower bagging, complex operation, workload is large, and efficiency is low, for carrying out large batch of stevia crossbreeding, is a larger technology barrier.Design that a kind of to facilitate the method for stevia artificial hybridization be very necessary.

Summary of the invention

the object of the invention is the problem existing for the existing stevia artificial hybridization in various places, propose a kind of stevia guard hybrid method, in order to facilitate the artificial hybridization of the combination in enormous quantities of stevia.

the present invention is achieved in that

a stevia guard hybrid method, it comprises the following steps:

(1) field planting parental combination arranges parent's planting pit in field according to the Horizontal Distance of 1-1.2m spring, each strain of every cave field planting stevia father and mother parent, and spacing in the rows 10-20cm, and Parent is carried out to mark.

guard guard is installed and before stevia is bloomed, is installed, step is as follows:

1. nail stake: hammer into the support of 3 waddy crop guards in the surrounding of planting pit, 3 hammer into some distribution triangular in shape, are preferably equilateral triangle, length of side 30-40cm; The high 1.2-1.5m of support; Between different guards at a distance of 60-80cm;

2. cover net: 20-60 object nylon guard in support upper cover, guard below mouth contacts to earth.

(3) parents in artificial pollination guard enter after full-bloom stage, and pat vibration from the outside of guard to two stevia parental plants every day, and parents' pollen waves in air, and pollination hybridization mutually, carries out 15-20 days continuously;

(4) while gathering in the crops seed seed maturity in autumn, seed is carried out to individual plant results, mark is preserved.

adopt the effect of nylon guard to be the Parent of a pair of stevia and other stevia plant to keep apart, prevent insect pollination interference.

beneficial effect of the present invention:

beneficial effect of the present invention is, the stevia crossover operation technology of very complicated is reduced to simple work operation.When carrying out the artificial pollination of stevia Parent, as long as pat and rock being grown in inner stevia Parent in the outside of nylon guard, promote flying upward of pollen, just can make the hybridization of can mutually pollinating of the flower of Parent part, the stevia filial generation of acquisition some.This operation is very simple, and original accurate operation is simplified, not high to operating personnel's specification requirement, is applicable to the combined hybrid in enormous quantities of stevia breeding work.

Accompanying drawing explanation

fig. 1 is a kind of effect schematic diagram of stevia guard hybrid method

in figure: 1 is support, 2 is nylon guard, and 3 is ground, and 4 is stevia.

embodiment:

below in conjunction with specific embodiment, the present invention is conducted further description.

a stevia guard hybrid method, it comprises the following steps:

1. stevia is hybridized the structure of rack:

stevia 4 guard hybrid methods, it comprises support 1 and nylon guard 2, it is characterized in that, described support 1 consists of three waddys, and three waddy height are 1.5m, vertically follows closely on ground 3, hammering into the degree of depth is 15cm, and three hammer into and are a little triangular arranged, leg-of-mutton length of side 35cm; Nylon guard 2 is enclosed within the outside of support 1, and sack downwards and contact to earth, enters and alters powder with protection against insect.Nylon guard 2 adopts 40 object nylon wires to make; The distance that keeps 70cm between rack and other rack.

the use of stevia hybridization rack is given an example:

determined the hybrid combination of 20 stevia in spring in 2013.

1. spring, each strain of field planting stevia parents in stevia hybridization rack preposition, spacing in the rows 15cm, to each individual plant listing mark.

2. before stevia is bloomed, stevia hybridization rack is installed, 20 couples of parents are covered respectively in 20 nylon wires.

3. after blooming, pat, shake the stevia in guard every day from the outside of guard, promotes its pollen to fly away in air, causes two parents mutually to hybridize.

4. after seed maturity, to the seed of reciprocal cross in guard, divide receipts, minute solarization, minute Tibetan, as the use of sowing.Sow 40 of above-mentioned 20 combinations parts of seeds winter in greenhouse by solar heat, and each combination has all obtained the filial generation seedling of some.

Claims

1. a stevia guard hybrid method, is characterized in that, it comprises the following steps:

(1)field planting parental combination arranges parent's planting pit in field according to the Horizontal Distance of 1-1.2m spring, each strain of every cave field planting stevia hybridization Parent, and spacing in the rows 10-20cm, and Parent is carried out to mark;

(2)guard guard is installed and before stevia is bloomed, is installed, step is as follows:

1.nail stake: hammer into the support of 3 waddy crop guards in the surrounding of planting pit, 3 hammer into some distribution triangular in shape, length of side 30-40cm; The high 1.2-1.5m of support; Between different guards at a distance of 60-80cm;

2.cover net: 20-60 object nylon guard in support upper cover, guard below mouth contacts to earth;

(3)parents in artificial pollination guard enter after full-bloom stage, and pat vibration from the outside of guard to two stevia parental plants every day, and parents' pollen is waved in air, and pollination hybridization mutually, carries out 15-20 days continuously;

(4)during results seed seed maturity in autumn, seed is carried out to individual plant results, mark is preserved.

2. a kind of stevia guard hybrid method according to claim 1, is characterized in that, 3 of described support hammer into and are a little equilateral triangle and distribute.