Method of producing konjac sexual seeds by means of artificial pollination

A technology for artificial pollination and konjac is applied in the field of producing konjac sexual seeds by using artificial pollination technology, which can solve the problems of limiting the large-scale application of sexual reproduction of konjac, a solution to low germination rate, poor seed maturity and the like, and achieves the effect of wound disinfection. Good, improve the fruiting rate, prevent the effect of rain soaking

Inactive Publication Date: 2018-12-25
HANZHONG AGRI SCI INST SHAANXI RICE RES INST
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AI Technical Summary

Problems solved by technology

[0005] In summary, the sexual reproduction of konjac has problems such as long cycle, low seed setting rate, high incidence of diseases, poor seed maturity, and low germination rate.
Chinese konjac scientific research workers generally use artificial pollination to increase the stigma setting rate of konjac, but there is no effective solution to the problems of severe disease, weak plant growth, poor seed maturity, and low germination rate, and these problems are limited. Large-scale application of sexual reproduction of Amorphophallus konjac

Method used

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  • Method of producing konjac sexual seeds by means of artificial pollination
  • Method of producing konjac sexual seeds by means of artificial pollination
  • Method of producing konjac sexual seeds by means of artificial pollination

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Embodiment approach

[0027] Step 1: On a slope above 750m above sea level in Hanzhong City, Shaanxi Province, build a steel frame greenhouse with a height of 2.5 meters and a length and width as long as the ground. A retractable shading net is installed on it, which can provide a shading environment for the growth of sexual konjac seeds. The shade net is 1.5 meters above the ground on both sides of the shed, which is good for ventilation in the shed. In the 4-5 months of the konjac pollination period, add a layer of plastic film between the shade net and the greenhouse to keep out the rain, and put it away after the konjac pollination ends.

[0028] Step 2: At the end of March 2016, collect local flower konjac species with a seed age of 4 years or more and well-developed flower buds. Use 2,500 times of agricultural streptomycin and 500 times of thiophanate-methyl to disinfect the skin of the konjac species, and dry them in the sun. Plant after drying the surface, and ensure that the konjac flower ...

Embodiment 1

[0039] Select the farm flower konjac from Zhenba County, Hanzhong City, and the quality of the taro is about 500g. Plant according to the steps 1 and 2 described in the implementation mode, remove the stamens and spathes according to the steps 3 and 4, and perform artificial pollination according to the steps 5-8 and wound disinfection. Taking the single plant of natural pollination as the control, the investigation was carried out before the konjac seeds were harvested. According to the statistics: the stigma seed setting rate of artificial pollination konjac was 63.8%, while the natural pollination seed setting rate was 24.5%; the diseased plant rate of artificial pollination konjac was 8.0%, The diseased plant rate of natural pollination konjac was 19.7%; the average single weight of sexual seeds of artificial pollination was 0.16g, and the average single weight of sexual seeds of natural pollination was 0.14g; the germination rates of sexual seeds of artificial pollination ...

Embodiment 2

[0041]The difference between embodiment 2 and embodiment 1 is: only the konjac pollination single plant is removed spathe, stamens and appendages are not removed, and after artificial pollination, it is allowed to rot naturally and come off, compared with complete artificial pollination plants, investigation It was found that the seed setting rate was 58.7%, the diseased plant rate was 15.6%, and the average single weight of sexual seeds was 0.14g. The results showed that the technical scheme of pollination after removing spathes only had problems such as serious plant diseases, low seed setting rate, and light weight of seeds.

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Abstract

The invention relates to a method of producing konjac sexual seeds by means of artificial pollination. In sexual growth stage of Amorphophallus konjac, spathes and stamens of konjac are removed manually, cuts are disinfected, pollinating is performed in time, proper rain-shading and sun-shading measures are taken, after-ripening time is extended, and other technical means are implemented; the effects of all the technical steps are given to play; the method of producing konjac sexual seeds by artificial pollution is provided by integration. Compared with the prior art, the method has the advantages of simple steps, high pollination fruiting rate, good cut disinfection effect, low disease damage level in growth stage, good maturity of sexual seeds, high seed germination rate and the like. The method herein helps effectively solves the problems which konjac currently experiences in sexual propagation, such as high disease damage level, weak plant growth, poor seed maturity and low germination rate; the method is well worthy of popularization and application.

Description

technical field [0001] The invention relates to the technical field of plant seed breeding, in particular to a method for producing konjac sexual seeds by artificial pollination. Background technique [0002] Konjac, also known as konjac, belongs to Araceae Konjac plant, mainly distributed in my country's Yunnan-Guizhou Plateau, Qinba Mountains, Sichuan, Hubei and other southwest mountainous areas. Konjac is hailed by UNESCO as one of the top ten health foods in the world. It is the raw material for making traditional food konjac tofu. At the same time, konjac, as the only crop in nature that can provide a large amount of glucomannan, is used in food, medicine, health care, industry, etc. There are a wide range of uses. With the development of the international market and the continuous increase of the domestic market, the demand for konjac has been increasing in recent years, and the development prospect of the konjac industry is broad. [0003] Konjac is usually propagat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 魏芳勤陈永刚刘勇陈进魏玲王艳龙王胜宝张耀铃孙瑞泽
Owner HANZHONG AGRI SCI INST SHAANXI RICE RES INST
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