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Method of shorting dormancy stage of paddy rice seeds and promoting germination of paddy rice seeds

A technique for rice seed dormancy, which is applied in the field of promoting germination and shortening the dormancy period of rice seeds, can solve the problems that growers cannot grasp, rice varieties are few, and are not representative, so as to achieve large representativeness, promote seed germination, The effect of accurate experimental data

Inactive Publication Date: 2017-07-14
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The level of treatment temperature involved in each method, the type, concentration and treatment time of chemical reagents or growth regulators do not have a fixed standard, and growers cannot grasp
In addition, even if there are relevant literature reports, the number of rice varieties that provide data is relatively small and not representative

Method used

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  • Method of shorting dormancy stage of paddy rice seeds and promoting germination of paddy rice seeds
  • Method of shorting dormancy stage of paddy rice seeds and promoting germination of paddy rice seeds
  • Method of shorting dormancy stage of paddy rice seeds and promoting germination of paddy rice seeds

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Part of the rice seeds screened in (3) with mild dormancy, moderate dormancy and strong dormancy characteristics were used as experimental objects, soaked with fungicides for 24 hours, soaked in clean water for 24 hours, and placed the seeds in a water bath at 50°C or 40°C. Treat in warm water at ~50°C for 0.5-3 hours, spread evenly on wet filter paper or gauze, and then place in an incubator at 28-30°C for dark cultivation for 7-8 days. The germination rate of rice seeds is shown in Table 2. The germination rate of rice seeds is above 80%.

[0034]Table 2 Germination rate of rice seeds with dormancy characteristics pretreated at 50℃

[0035]

Embodiment 2

[0037] Part of the rice seeds screened in (3) with mild dormancy, moderate dormancy and strong dormancy characteristics were used as experimental objects, soaked with fungicides for 24 hours, soaked in clean water for 24 hours, and then placed the seeds in a refrigerator at 4°C for 12 hours ~ 24 hours, evenly spread on moist filter paper or gauze, and then placed in an incubator at 28 ~ 30 ° C for 7 ~ 8 days, the germination rate of rice seeds is as shown in Table 3, and the germination rate of rice seeds is 83%. above.

[0038] Table 3 Germination rate of rice seeds with dormancy characteristics under low temperature pretreatment at 4℃

[0039]

[0040]

Embodiment 3

[0042] Part of the rice seeds screened in (3) with mild dormancy, moderate dormancy and strong dormancy characteristics were used as experimental objects, soaked with fungicides for 24 hours, and after soaking in clear water for 24 hours, evenly spread the seeds on a layer containing 1% to 10% On the wet filter paper or gauze with hydrogen peroxide, place it in an incubator at 28-30°C for dark cultivation for 6 hours to 24 hours, then rinse it with running water, then place it in an incubator at 28-30°C to keep it moist and cultivate it in dark for 7-8 days , The germination rate of rice seeds is as shown in Table 4, and the germination rates of different types of rice seeds are all above 83%.

[0043] The germination rate of rice seeds with dormancy characteristics under the treatment of table 4 hydrogen peroxide

[0044]

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Abstract

The invention discloses a method of shorting dormancy stage of paddy rice seeds and promoting germination of paddy rice seeds, and relates to the technical field of seed plantation. At first, indica and japonica paddy rice seeds with different mature periods for production or research are picked; a conventional paddy rice seed germination method is applied on the paddy rice seeds, then paddy rice seeds with different dormancy characteristics are picked out, then the seeds with dormancy characteristics are subjected to germination promotion under different germination promotion environments to obtain the experiment data of increased seed germination rate. Paddy rice seeds with different mature periods are taken as the experiment objects, through a conventional paddy rice seed germination method, paddy rice seeds with different dormancy characteristics are screened out, the subsequent experiments become simpler, then paddy rice seeds with different dormancy characteristics are subjected to germination promoting treatments under different germination conditions, the germination rates of each group in different experiment environments are obtained, the optimal method for promoting the seed germination is obtained, labor and cost are both saved, and optimal production data is provided for the producers.

Description

technical field [0001] The invention relates to the technical field of planting seeds, in particular to a method for shortening the dormant period of rice seeds and promoting their germination. Background technique [0002] Seeds are one of the most important means of production in agricultural production. The crop seeds that have just been harvested from the field often fail to germinate even if the conditions are suitable because they have not completed physiological post-ripening or the seed coat has poor air and water permeability. sleep. Rice is an important food crop. According to different methods, it can be divided into indica rice and japonica rice, early rice and middle and late rice. Different types of rice seeds have different degrees of dormancy. Studies have shown that early indica and very early-maturing japonica rice have almost no dormancy period, and middle-late maturing varieties have a longer dormancy period. Premature harvesting of rice, poor maturity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/00
CPCA01C1/00
Inventor 曹云英王玲娟梁燕李丽萍陈玉香贾梦洁王俊杰徐志新沈鑫张智铭武慧杰易慧娟张正穆明兴丁冲冲
Owner NANTONG UNIVERSITY
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