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Method for shortening period of dormancy of white potato seedling seed and improving germination percentage

A seed and potato technology, applied in the direction of germination equipment, seed and rhizome treatment, application, etc., to shorten the dormant period and increase the germination rate

Inactive Publication Date: 2009-01-28
达州市农业科学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report about breaking dormancy and germination rate of more than 60% in the same year by using potato seeds

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0010] Example 1: The potato berries harvested in 2007 were washed to obtain potato seeds after they were rotten. They were placed at a constant temperature of 36°C for 70 days, and then the seeds were placed in a 23°C incubator with a relative humidity of 90%. Accelerated germination, the germination rate reached 87.33%.

example 2

[0011] Example 2: On July 20, 2007, the hybrid seeds harvested were placed at a basic constant temperature of 35°C for 70 days to break dormancy. On September 30, germination was accelerated in a germination box at 25°C with a relative humidity of 93%, and germination The rate reached 95%. On October 25th, the seedlings were raised, and on January 8th, 2008, 1 mu was transplanted.

example 3

[0012] Example 3: On October 8, 2007, 800 natural hybrid potato seeds were selected, divided into eight equal parts, and subjected to different treatments. The results are shown in the table below.

[0013] the seeds

[0014] The results showed that the temperature and humidity in the germination box had little effect on the germination rate within the set range.

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PUM

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Abstract

The invention relates to a method for shortening the dormancy period of seedling seeds of potato and improving the germination rate; the method comprises the following steps: the seedling seeds of the potato are placed for 60-80 days at the constant temperature of 33 to 39 DEG C and is accelerated to germinate under the conditions of 85 percent to 95 percent of relative humidity and constant temperature of 20 DEG C to 28 DEG C, the germination rate can reach more than 80 percent so as to shorten the breeding period and to accelerate the seed selection and production and utilization of new species.

Description

(1) Technical field [0001] The invention relates to a method for raising potato seedlings. (2) Background technology [0002] Potato is a clonal crop mainly harvested from tubers, so there are few research and breeding units and insufficient investment, resulting in low potato yields and few special varieties. In order to speed up the breeding process, it is necessary to use hybrid breeding to obtain seedlings and harvest natural cross-seed seeds for germination, seedling cultivation and transplanting, and to select new potato varieties with stable properties, high yield, and excellent properties from the offspring, or use seedlings to plant potato . However, in the process of germination of real seeds, the germination rate is extremely low. Many experts believe that potato seeds can only be placed for germination next year, and the germination rate is relatively low. "Potato Breeding" edited by Sun Huisheng said: "The germination rate of the seeds harvested in that year w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/00A01C1/02
Inventor 赵思毅李云峰丁大杰杨锡波陈斌陈明静赵罗群
Owner 达州市农业科学研究所
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