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Seed processing method for tobacco seed to improve resistance on imbibitional chilling injury

A tobacco seed and seed treatment technology, which is applied in the fields of seed and rhizome treatment, seed coating/seed dressing, application, etc., can solve the problems of tobacco leaf yield decline, slow growth and development, and poor quality of seedlings, so as to increase yield and Yield value, high germination rate, easy to degrade effect

Inactive Publication Date: 2008-04-16
TOBACCO RES INST OF HUBEI PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a seed treatment method that improves the ability of tobacco seeds to resist imbibition and chilling damage, so as to solve the problems of slow seedling emergence, low seedling emergence rate, and poor seedling quality caused by imbibition and chilling damage that are common in tobacco agricultural production. 1. Slow growth and development after transplanting in the field, resulting in decreased yield and poor quality of tobacco leaves. After the tobacco seeds are treated by the method of the present invention, the ability of tobacco seeds to resist imbibition and cold damage can be improved, the germination time of tobacco can be shortened, the uniformity of seedlings can be improved, and the tobacco can be improved. Improve the quality of seedlings, improve the yield and quality of tobacco leaves

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0034] In 2004, 1000 mu of tobacco fields were demonstrated in Enshi Prefecture and Xiangfan City. According to the amount of seeds used, a 10% PEG solution was prepared in proportion, and the temperature was treated at 15±2°C (air conditioning controlled room temperature) and air supplemented with oxygen. Continuous soaking treatment with 10% PEG solution for 72 hours under conditions, and sowing after conventional coating. Taking the implementation results of Yangchang National Responsibility Land (average altitude 1100m) in Meiping Village, Gaoleshan Town, Xianfeng County, Enshi Prefecture as an example, the emergence rate of flue-cured tobacco K326 with conventional coating after soaking in PEG was 95.0%, which was higher than that of the control group ( Without seed soaking, the seeds of conventional coating directly, the same below) 88.0% increased by 7 percentage points, and the emergence stage, small cross stage, and large cross stage were all advanced by 5 days, and fi...

example 2

[0036] In 2005, the planting area of ​​tobacco seeds processed by the method of the present invention was promoted and implemented in Hubei Province to 20,000 mu. The seeds are uniformly prepared, and the 10% PEG soaking solution is prepared in proportion to the number of seeds used, and the tobacco seeds are continuously soaked for 72 hours at a treatment temperature of 15±2°C and continuously fed with oxygen, and then conventionally coated. The records of the seedling stage and seedling quality indicators of flue-cured tobacco K326 in the Jinjiaba demonstration site (average altitude 1000m) in Huangliang Town, Xingshan County, Yichang City showed that the seeds soaked in PEG and the seeds of the control group were sown on the same day on March 6. Seedlings emerged on May 17 and May 19 respectively; compared with the seedlings in the control group, the fresh weight of roots of tobacco seedlings soaked in PEG can increase by 25.5%, the fresh weight of stems and leaves can incre...

example 3

[0038] In 2006, the seeds treated by the inventive method were planted in an area of ​​89,900 mu in Hubei Province. As mentioned above, a 10% PEG solution soaking treatment agent was prepared in proportion to the number of seeds used, and the treatment temperature was 15±2°C. And under the condition of continuous feeding of oxygen, continuous immersion treatment of tobacco seeds for 72 hours, the demonstration site of Gaoping Town, Jianshi County (average altitude 1200m) increased the investigation of the number of leaves, stem girth and stem height at the time of seedling growth, and recorded It showed that compared with the control seeds, the number of leaves, stem girth and stem height of Burley tobacco "Eyan 1" soaked in PEG increased by 20.8%, 32.7% and 3.0%, respectively, and the above three The elements increased by 17.5%, 27.7% and 12.1% respectively; although the number of leaves of "Yunyan 87" in Hefeng County did not increase significantly, its stem girth and stem he...

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Abstract

A treatment method of seeds is provided which improves the capability of seed to resist imbibitional chilling injury, belonging to a field of treatment technology for crops, especially relating to treatment method of seeds. The process of the treatment method of seeds that improves the capability of seed to resist imbibitional chilling injury includes: quantitiy determined clean tobacco seeds is put into 10%PEG solution for treatment, according to a 1:10 (W / W) scale of clean dry tobacco seed to 10%PEG solution; the tobacco seeds are soaked for 72 hours continuously in the condition of temperature, 15+ / -2 DEG C, and ventilation for oxygen complement; the soak solution is removed after 72 hours, then washing and air drying the seeds; subsequently, the tobacco seeds are coated conventionally and sealed to be sowed. The method improves the capability of seed to resist imbibitional chilling injury significantly, which ensures the seeds to have a high germination rate, prior seedling formation stage and high seedling quality after being assaulted by low temperature to improve agronomic traits of tobacco transplanted to field, and yield and output value of tobacco.

Description

technical field [0001] The invention discloses a seed treatment method for improving the ability of tobacco seeds to resist imbibition and cold damage, belonging to the technical field of crop treatment. Background technique [0002] In tobacco agricultural production, sowing in early spring often encounters rainy and snowy weather, and seeds generally encounter low temperature and chilling adversity during the process of imbibition and germination; in addition, tobacco seeds are small and have few nutrients, so it is very easy to suffer from imbibition and chilling damage during seed germination. It leads to long germination time, reduced germination rate, irregular emergence, poor quality of seedlings, and even slow growth and development after transplanting so that the final yield and quality decline. For this reason, in the agricultural production of tobacco, it is often necessary to pretreat the seeds before sowing to improve the vigor of the seeds. In the past ten yea...

Claims

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Application Information

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IPC IPC(8): A01C1/00A01C1/06
Inventor 杨春雷李进平林国平袁国林杨久红杨锦鹏郑莉樊凯孝
Owner TOBACCO RES INST OF HUBEI PROVINCE
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