Method for rapidly and effectively improving drought resistance of tobacco

A technology of tobacco and ability, applied in the field of agricultural biology, can solve the problem that the mechanism of action is not very clear, and achieve the effect of simple method, safe and reliable method, and less controversy.

Inactive Publication Date: 2015-06-03
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many studies on BABA enhancing the tolerance of plants to external stress, the specific mechanism of action is still not very clear and further research is needed
There are currently no studies on the effect of BABA on improving the effect of tobacco on drought stress

Method used

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  • Method for rapidly and effectively improving drought resistance of tobacco
  • Method for rapidly and effectively improving drought resistance of tobacco
  • Method for rapidly and effectively improving drought resistance of tobacco

Examples

Experimental program
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Embodiment Construction

[0020] Drought can not only affect the growth and development of tobacco but also affect the quality of tobacco leaves. In recent years, Yunnan, Guizhou and Sichuan, the major tobacco producing areas in China, have often suffered from drought stress. Therefore, a quick and effective method to alleviate the impact of tobacco on drought stress is particularly important. The present invention uses "Yunyan 87" as an experimental material to study the ability of β-aminobutyric acid (BABA) to resist drought stress in tobacco.

[0021] 1. Screening of the optimal concentration of β-aminobutyric acid (BABA) to induce tobacco seedlings to resist drought stress

[0022] Sow the tobacco seeds on the perlite watered with nutrient solution, and wait for them to germinate and grow. Among the tobacco seedlings grown for one week, the tobacco seedlings with consistent growth were selected and transplanted to 12-hole seedling pots. When the tobacco seedlings grow to the 4-5 leaf stage, they...

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Abstract

The invention discloses a method for rapidly and effectively improving the drought resistance of tobacco. The method specifically comprises the following step: irrigating roots of young tobacco seedlings in a 4 to 5-leaf period by adopting BABA (Beta-Amino Butyric Acid) at a concentration of 0.2 to 10mmol / L. By pretreatment with BABA, the survival rate and the relative moisture content of tobacco under a drought stress condition can be increased, the malondialdehyde content of tobacco bodies can be reduced, proline content, soluble sugar and soluble protein content can be increased, the activity of superoxide dismutase and peroxidase can further be improved, the activity of catalase and ascorbate peroxidase can be reduced, and hydrogen peroxide content can be increased, so that an antioxidant system can be regulated by BATA to improve the drought stress resistance of tobacco. BABA is a pollution-free and environment-friendly substance, and is easy to use and popularize on a large scale, so that huge economic benefits for tobacco production are created, and in addition, the method is of great significance for the development of green agriculture.

Description

technical field [0001] The invention belongs to the field of agricultural biotechnology, and in particular relates to a quick and effective method for improving the drought-resistant ability of tobacco. Background technique [0002] Drought stress is an important adversity factor affecting agricultural production and ecological environment in the world today, and it has caused huge losses to crop production in the world. Under the pressure of increasing population, serious shortage of fresh water resources and frequent occurrence of extreme temperature and weather, a fast, efficient and safe method to improve crop drought resistance is of great significance to crop production and ecological security in my country and the world. The traditional method of cultivating drought-resistant varieties is limited by the breeding time and the selection of excellent traits. The emerging transgenic technology to improve the drought-resistant ability of crops has important theoretical and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06A01N37/44A01P21/00
Inventor 陈学平何宽信顾厚武陈祝郭家明刘再强张清莉刘松单丹丹
Owner UNIV OF SCI & TECH OF CHINA
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