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Cross breeding marking method for peanuts

A technology of hybrid breeding and marking method, which is applied in the direction of botany equipment and methods, application, plant gene improvement, etc., which can solve the problems of cumbersome marking process, unclear marking of hybrid offspring, error-prone, etc., and achieve simple and easy-to-operate marking method , the effect of ensuring authenticity

Inactive Publication Date: 2019-01-11
ZHUMADIAN ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a marking method for peanut hybrid breeding, which solves the problems of unclear marking of hybrid offspring in the breeding process of the prior art, tedious and error-prone marking process

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0026] S1, planting of the parents: select the male parent "Ji L9407" and the female parent "Zhonghua No. 4", divide the parental parent into divisions and plant them in a pond with a height of 75 cm and a width of 65 cm;

[0027] S2, artificial hybridization: 7 days after the first flowering of the female parent, the female parent is artificially detasselled. The detasseling time is after 17:00 on the same day, and the anthers of the female parent's stamens are removed; Collect the male parent flower, pollinate the female parent flower with the keel petal pollination method, the pollination time is from 5 o'clock to 9 o'clock, while artificial hybridization, remove the flower that has not been hybridized in the female parent;

[0028] S3, Marking of hybrid flowers: After the artificial hybridization is completed, tie the colored cotton thread to the base of the hybrid flower and record the hybrid flower with its male parent and female parent. The diameter of the cotton thread ...

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Abstract

The invention belongs to the technical field of peanut breeding, and concretely relates to a cross breeding marking method for peanuts. The method comprises the following steps: planting male parentsand female parents in different areas according to different varieties; performing artificial emasculation 7 d after the initial blooming of the female plants, collecting the male parents on the nextday, and pollinating the female parents by a keel petal sleeving pollination technology; tying base parts of hybridized flowers with color cotton threads after the artificial hybridization in order to achieve marking, and allowing the color of the cotton threads to change every day for seven days to form one round until the flowering period ends; sleeving the base parts of gynophores with insulating tubes according to the artificial hybridization and cotton marking period when the gynophores formed by the development of the artificially hybridized flowers marked with the cotton threads grow to 1.5-2 cm 5-7 d after the artificial hybridization; timely burying the gynophores after the tube sleeving ends; and harvesting legumes with carpopodiums sleeved with the insulating tubes after the legumes formed by the development of the gynophores become ripe. The marking method enables the pollination and marking in the whole peanut flowering period to be carried out in an orderly manner and true hybrid progenies to be harvested.

Description

technical field [0001] The invention belongs to the technical field of peanut breeding and relates to a marking method for peanut hybrid progeny. Background technique [0002] Peanut is a self-pollinating plant that blooms on the ground and bears fruit underground. The ovary stalk can be formed 3-6 days after the embryo of peanut is fertilized. The ovary stalk and the ovary at its tip are collectively called fruit needles. The characteristics of ground growth, the fruit needles penetrate the soil for 4-6 days, and the ovary expands horizontally in the soil and develops into pods. [0003] Peanut hybrid breeding is easy to operate, saves manpower and material resources, and the offspring of hybrids are mutated, stable and fast, and can shorten the breeding period. It is one of the new technologies and effective ways of breeding. [0004] Peanut is a continuous flowering crop, whether it is artificial hybridization or natural pollination, it can form fruit needles after succ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 甄志高王晓林赵金环朱亚娟崔建民潘正茂
Owner ZHUMADIAN ACADEMY OF AGRI SCI
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