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Rapid breeding method of seed of konjac

A konjac and seedling technology, which is applied in the field of konjac seed-bearing rapid propagation, can solve problems such as failure of harvest, outbreak of soft rot, and provenance degradation, and achieve the effects of maintaining seed character and preventing provenance degradation.

Active Publication Date: 2019-03-08
YUNNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on the understanding of the efficacy of konjac, the market demand for konjac is increasing, but the current output is far from meeting the market demand, causing the price of konjac raw materials to rise year by year in recent years
In the main planting areas of konjac, at present, the commonly used methods of breeding konjac seedlings are asexual reproduction methods of digging big bulbs and keeping small ones or cutting large bulbs into pieces, but these two breeding methods are likely to lead to the degradation of provenance, long-term continuous multi-generation asexual reproduction, resulting in The resistance of konjac to soft rot is getting weaker and weaker, and large-scale planting is prone to large-scale outbreaks of soft rot and resulting in failure of harvest

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In 2014, in the greenhouse of Diansheng Agriculture and Forestry Co., Ltd. in Lincang, Yunnan, the seed breeding experiment of Gengyu No. 1 was carried out. On December 18, 2013, konjac bulbs were harvested in the field, and 500 konjac bulbs with a single weight of 3 to 4 kg and full and nearly spherical bulbs were selected; they were dried in the sun until December 28, 2013, and then the selected and dried konjac bulbs were stored in In the sterilized storage room, the storage temperature is controlled at 10-12°C. The konjac bulbs are placed bare in a single layer on a layered wooden frame.

[0027] On February 20, 2014, the planting site in the plastic greenhouse began to be prepared. According to the amount of carbofuran per mu 2kg and compound fertilizer 50kg per mu, insecticide and base fertilizer were applied. 30cm high, pour water thoroughly, and wait for planting.

[0028] On February 21, 2014, the konjac bulbs were taken out of the storage room, soaked and di...

Embodiment 2

[0031] In 2014, in the greenhouse of Diansheng Agriculture and Forestry Co., Ltd. in Lincang, Yunnan, the seed breeding experiment of Gengyu No. 2 was carried out. On December 18, 2013, konjac bulbs were harvested in the field, and 500 konjac bulbs with a single weight of 3-4 kg and full and nearly spherical bulbs were selected. Dry until December 28, 2013, then store the konjac bulbs that are selected and dried in a sterilized storage room, and the storage temperature is controlled at 10-12°C. The konjac bulbs are placed bare in a single layer on a layered wooden frame.

[0032] On February 20, 2014, the planting site in the plastic greenhouse began to be prepared. According to the amount of carbofuran per mu 2kg and compound fertilizer 50kg per mu, insecticide and base fertilizer were applied. 30cm high, pour water thoroughly, and wait for planting.

[0033] On February 21, 2014, the konjac bulbs were taken out of the storage room, soaked and disinfected with 75% chlorotha...

Embodiment 3

[0036]In 2014, the Linyu No. 1 seed-setting breeding experiment was carried out in the greenhouse of Diansheng Agriculture and Forestry Co., Ltd. in Lincang, Yunnan. On December 18, 2013, konjac bulbs were harvested in the field, and 500 konjac bulbs with a single weight of 3-4 kg and full and nearly spherical bulbs were selected. Dry until December 28, 2013, then store the konjac bulbs that are selected and dried in a sterilized storage room, and the storage temperature is controlled at 10-12°C. The konjac bulbs are placed bare in a single layer on a layered wooden frame.

[0037] On February 20, 2014, the planting site in the plastic greenhouse began to be prepared. According to the amount of carbofuran per mu 2kg and compound fertilizer 50kg per mu, insecticide and base fertilizer were applied. 30cm high, pour water thoroughly, and wait for planting.

[0038] On February 21, 2014, the konjac bulbs were taken out of the storage room, soaked and disinfected with 75% chlorot...

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Abstract

The invention provides a rapid breeding method of the seed of konjac, namely a method for sexual reproduction through apomixis, thus the seed of konjac is a small bulb. The reproduction rate of konjacseed bulbs is not more than 5-7 times in the way of digging big and staying small and large bulb-cutting propagation. According to the rapid breeding method of the seed of konjac, a seed bulb can breed 800-1500 seed bulbs, and the reproduction ratio is close to 1500 times, so that the problem of low breeding coefficient and degradation of seed source in konjac industry is solved. The rapid breeding method of the seed of konjac has the advantages of high breeding efficiency, keeping seed character, preventing and controlling seed source degeneration, fast breeding of konjac bulbs for farmers to grow, thereby producing more konjac bulbs to meet the market needs.

Description

technical field [0001] The invention belongs to the technical field of breeding methods for crops, and in particular relates to a method for rapid breeding of konjac seeds. Background technique [0002] Konjac is a perennial root bulbous herbaceous plant of the family Araceae Konjac. The wild species mainly grow in tropical and subtropical regions of South Asia and Southeast Asia, and China is one of its origins. There are large-scale plantings in Yunnan, Sichuan, Hubei, Hunan, Guizhou, Shaanxi and other provinces and regions in China. Konjac is the only plant in the biological world that contains a large amount of glucomannan. At present, many clinical trials have been conducted on the health and medical effects of konjac around the world. It is found that the main component of konjac bulbs, glucomannan, is a water-soluble hemicellulose, which is beneficial to the human body. Very beneficial dietary fiber. It has a good preventive effect on modern affluent diseases such a...

Claims

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Application Information

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IPC IPC(8): A01G22/25A01G13/00A01G2/00A01C21/00A01C1/08A01C1/00A01B79/02
CPCA01B79/02A01C1/00A01C1/08A01C21/005A01G2/00A01G13/00A01G22/25
Inventor 吴学尉吴治成叶辉刘丹丹蒋春竹李雯李永强张善强郝培炎
Owner YUNNAN UNIV
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