Method for corn seed priming

A seed and corn technology, applied in the direction of seed immunization, seed and rhizome treatment, botanical equipment and methods, etc., can solve the problems that the expected effect cannot be achieved, and the cold resistance performance of corn cannot be effectively improved, so as to achieve enhanced resistance and prevent germination. Protrusion of roots, effect of preventing mildew

Inactive Publication Date: 2020-05-19
LIAONING ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing seed priming technology cannot achieve the desired effect and cannot effectively improve the cold resistance of corn

Method used

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  • Method for corn seed priming
  • Method for corn seed priming
  • Method for corn seed priming

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1 of the present invention discloses a kind of corn seed priming method, comprises the steps:

[0063] (1) Select corn seeds with plump grains and no damage, soak and sterilize them in 0.3% sodium hypochlorite solution for 10 minutes, take out the corn seeds and rinse them with clean water; Air-dried to moisture content <13%;

[0064] (2) Spermidine (Spd) was dissolved in water to prepare an aqueous solution of spermidine with a concentration of 0.25mmol / L, while spermine (Spm) was dissolved in water to prepare an aqueous solution of spermine with a concentration of 0.25mmol / L , and then mixed according to the volume ratio of 1:1 to obtain the treatment solution;

[0065] (3) Arrange 50 corn seeds evenly in each germination box with two layers of filter paper in the germination box, with the embryo facing down, add 0.25mmol L -1 spermidine and 0.25mmol L -1 Add 10 mL of spermine solution to the treatment solution, and add 1 mL of 0.3% NaClO, trigger 72 h a...

Embodiment 2

[0068] Embodiment 2 of the present invention discloses a kind of corn seed priming method, comprises the steps:

[0069] (1) Select corn seeds with plump grains and no damage, add 0.1% sodium hypochlorite solution for soaking and disinfection for 10 minutes, take out the corn seeds and rinse them with clean water; then use filter paper to dry the surface moisture of the corn seeds, and then Air-dried to moisture content <13%;

[0070] (2) respectively dissolving putrescine (Put) and spermine (Spm) in water to prepare a concentration of 0.1mmol / L putrescine aqueous solution and spermine aqueous solution;

[0071] (3) Arrange 50 corn seeds evenly in each germination box with two layers of filter paper in the germination box, with the embryo facing down, add 10mL of 0.1mmol L -1 Putrescine, 10 mL of 0.1 mmol L -1 Each of the spermine solution and 1 mL of 0.1% NaClO was induced for 48 hours at 10°C in the dark;

[0072] (4) Rinse the primed corn seeds with distilled water quick...

Embodiment 3

[0074] Embodiment 3 of the present invention discloses a kind of corn seed priming method, comprises the steps:

[0075] (1) Select corn seeds with plump grains and no damage, add 0.2% sodium hypochlorite solution to soak and disinfect for 10 minutes, take out the corn seeds and rinse them with clean water; then use filter paper to dry the surface moisture of the corn seeds, and then Air-dried to moisture content <13%;

[0076] (2) Dissolving spermidine (Spd) and putrescine (Put) in water respectively to form a concentration of 0.4mmol / L spermidine aqueous solution and putrescine aqueous solution;

[0077] (3) Add 10 mL of 0.4 mmol L to the germination box with two layers of filter paper -1 Spermidine, 10mL of 0.4mmolL -1 Putrescine solution and 1mL of 0.2% NaClO, 50 seeds were uniformly arranged in each germination box, and induced for 70h under dark conditions at 13°C, during which no radicle protruded.

[0078] (4) After the initiation, the seeds were quickly rinsed with...

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Abstract

The invention discloses a method for corn seed priming. The method comprises the following steps: selecting corn seeds and treating the seeds with disinfection, cleaning and drying; dissolving polyamine in water to obtain a polyamine aqueous solution, and making a treating fluid after mixing; adding the treating fluid to the corn seeds and conducting low-temperature priming; and cleaning and re-drying the corn seeds which are already primed, and conducting sowing or low-temperature storage. The method is easy to operate and master and short in duration, and can promote germination and growth of seedlings and enhance cold resistance in case of low temperatures after corn sowing.

Description

technical field [0001] The invention relates to the technical field of corn planting, in particular to a method for priming corn seeds. Background technique [0002] Corn (Zea mays L.) is the largest food crop in my country, and it is also an important feed crop, energy crop and industrial raw material in addition to food. Maize is a typical temperature-loving crop. Low temperature and chilling injury is the main limiting factor for high and stable maize yield in the region, and it is also one of the important natural disasters that endanger maize production in high latitude areas and local hills. Low temperature will reduce the vigor of seeds, delay the emergence time, seriously cause the death of seeds or seedlings, lead to the lack of seedlings and broken ridges of corn and poor emergence uniformity, which is one of the important reasons for the decline of corn yield. [0003] In order to eliminate the impact of low temperature and chilling damage on the high and stable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/00A01C1/08A01N33/04A01P21/00
CPCA01C1/00A01C1/08A01N33/04
Inventor 郝楠王延波王成李月明孙楠孙丽惠孙甲贾卓马云祥毕文博
Owner LIAONING ACAD OF AGRI SCI
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