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Method for breaking dormancy of current potato seeds and increasing germination rate

A potato and germination rate technology, applied in the field of germination, can solve problems such as breakage and low germination rate, and achieve the effects of avoiding seed rot, reducing work intensity and reducing waste

Inactive Publication Date: 2018-04-13
达州市农业科学研究院
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  • Description
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AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned existing prior art, the present invention provides a method for breaking the dormancy of potato seeds and increasing the germination rate, so as to solve the technical problems that the dormancy of potato seeds harvested in the year is not easy to break and the germination rate is low

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  • Method for breaking dormancy of current potato seeds and increasing germination rate
  • Method for breaking dormancy of current potato seeds and increasing germination rate

Examples

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Embodiment 1

[0034] In August 2016, 100 potato seeds of Qinyu 30 (H1) harvested in July 2016 were packed in a kraft paper bag, and then placed in a thermostat with a temperature of 36°C for 2.5 months; then the seeds were removed from the kraft paper Take it out of the bag, carry out 10 hours of light every day, and spray a 15ppm gibberellin solution every 12 hours, each spraying is based on the fact that the potato seeds are wet and do not collect water, and the treatment is for 2 days in total.

[0035] Spread the H1 that breaks the dormancy period on the filter paper so that each seed can directly contact the filter paper, and then put the filter paper into a petri dish filled with vermiculite and culture solution 1, wherein the thickness of the vermiculite layer accounts for 100% of the thickness of the petri dish. 1 / 3 of the depth; then spray H1 with 800 times liquid of carbendazim 50% wettable powder, and cover the petri dish with the criterion that the potato seeds are wet but not co...

Embodiment 2

[0037] In August 2016, 100 potato seeds of Eshu No. 5 (H2) received in July 2016 were packed in kraft paper bags, and placed in a thermostat at 38°C for 2.5 months; then the seeds were removed from the Take it out from the kraft paper bag, carry out 10 hours of light every day, and spray a 15ppm gibberellin solution every 8 hours, each spraying is based on the fact that the potato seeds are wet and do not collect water, and the treatment is for 2 days in total.

[0038] Spread the dormant-breaking H2 on the filter paper so that each seed can directly contact the filter paper, and then put the filter paper into a petri dish filled with perlite and culture solution 2, where the thickness of the perlite layer is 100% of that of the petri dish. 1 / 2 of the depth; then spray H2 with 800 times liquid of carbendazim 50% wettable powder, and cover the petri dish with the criterion that the potato seeds are wet and do not collect water. Put the treated petri dish into a constant tempera...

Embodiment 3

[0040] In August 2016 and July 2016, 100 991-60 (H3) potato seeds were packed in a kraft paper bag, and placed in a constant temperature box at 35°C for 3 months; then the seeds were removed from the kraft paper Take it out of the bag, carry out 10 hours of light every day, and spray a 15ppm gibberellin solution every 12 hours, each spraying is based on the fact that the potato seeds are wet and do not collect water, and the treatment is for 2 days in total.

[0041]Spread the H3 that breaks the dormancy period on the filter paper, so that each seed can directly contact the filter paper, and then put the filter paper into a petri dish filled with rock wool and culture solution 1, and the thickness of the rock wool layer accounts for 1% of the culture medium. 1 / 3 of the depth of the dish; then spray H3 with 1000 times of carbendazim 50% wettable powder, and cover the petri dish with the criterion that the potato seeds are wet but not collected. Put the treated petri dish into a...

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Abstract

The invention discloses a method for breaking dormancy of current potato seeds and increasing germination rate. The method comprises the following specific steps: placing potato seeds in kraft paper sacks, standing for 2.5-3 months at the constant temperature, and carrying out exposure and gibberellin spraying treatment on the seeds to break dormancy of the seeds; and laying the potato seeds of which the dormancy is broken on filter paper, placing the filter paper in a culture dish with a cultivation substrate and a culture solution, and finally placing the culture dish in a constant-temperature box and carrying out poikilothermic treatment. The culture solution in the culture dish is obtained by mixing a gibberellin solution, a sterilizing agent solution and a hydrochloric acid solution according to the volume ratio of 1: 1-2:1. By the method, dormancy of the current potato seeds can be broken rapidly, after germination of the current potato seeds is accelerated, the germination percentage can be 90% or above, and the technical problems that the dormancy of the current potato seeds cannot be broken easily, and the germination rate is low are solved effectively.

Description

technical field [0001] The invention belongs to the technical field of germination acceleration, and in particular relates to a method for breaking the dormancy of potato seed seeds of the year and improving the germination rate. Background technique [0002] Potato seeds were harvested that year, and there was a dormancy period of about 6 months. The general method is to store the seeds for more than 1 year and directly use them for germination; or store them for more than half a year and less than 1 year, soak them in 1000mg / L gibberellin solution for 24 hours to break dormancy and then germinate. The above method not only takes a long time, but also has a very low germination rate . There are also related technologies that believe that after the high-temperature treatment of the seeds, the germination at constant temperature takes about 5 months, and the germination rate is only about 75%. Compared with the general method, it also has the disadvantages of long time and l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/00
CPCA01C1/00
Inventor 丁大杰李云峰范香全黄娟赵罗琼陈斌杨锡波吴明阳胡振兴李益杨小丽高龙梅
Owner 达州市农业科学研究院
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